Clorazepate Dipotassium: Difference between revisions

Jump to navigation Jump to search
No edit summary
m (Protected "Clorazepate Dipotassium": Bot: Protecting all pages from category Drug ([Edit=Allow only administrators] (indefinite) [Move=Allow only administrators] (indefinite)))
 
(2 intermediate revisions by one other user not shown)
Line 1: Line 1:
{{DrugProjectFormSinglePage
{{DrugProjectFormSinglePage
|authorTag={{TA}}
|authorTag={{SS}}; {{TA}}
|genericName=Clorazepate Dipotassium
|genericName=Clorazepate
|aOrAn=an
|aOrAn=a
|drugClass=[[antianxiety]]
|drugClass=benzodiazepine
|indicationType=treatment
|indicationType=treatment
|indication=[[anxiety]] disorders or for the short-term relief of the symptoms of anxiety
|indication=[[anxiety disorders]] and symptomatic relief of acute [[alcohol withdrawal]]
|adverseReactions=[[drowsiness]], [[dizziness]], various gastrointestinal complaints, nervousness, [[blurred vision]], [[dry mouth]], [[headache]], and [[mental confusion]]
|adverseReactions=[[drowsiness]], [[dizziness]], various gastrointestinal complaints, nervousness, [[blurred vision]], [[dry mouth]], [[headache]], and [[mental confusion]]
|blackBoxWarningTitle=<b><span style="color:#FF0000;">TITLE</span></b>
|blackBoxWarningTitle=<b><span style="color:#FF0000;">TITLE</span></b>
|blackBoxWarningBody=<i><span style="color:#FF0000;">Condition Name:</span></i> (Content)
|blackBoxWarningBody=<i><span style="color:#FF0000;">Condition Name:</span></i> (Content)
|fdaLIADAdult====Indications===
|fdaLIADAdult=<h4>Symptomatic Relief of Anxiety</h4>
*Clorazepate dipotassium tablets are indicated for the management of anxiety disorders or for the short-term relief of the symptoms of anxiety. Anxiety or tension associated with the stress of everyday life usually does not require treatment with an anxiolytic.


*Clorazepate dipotassium tablets are indicated as adjunctive therapy in the management of partial seizures.
* '''Dosing information'''


*The effectiveness of clorazepate dipotassium tablets in long-term management of anxiety, that is, more than 4 months, has not been assessed by systematic clinical studies. Long-term studies in epileptic patients, however, have shown continued therapeutic activity. The physician should reassess periodically the usefulness of the drug for the individual patient.
:* Clorazepate dipotassium tablets are administered orally in divided doses.  
::* Usual daily dose:  '''30 mg'''. The dose should be adjusted gradually within the range of '''15 to 60 mg daily''' in accordance with the response of the patient. In elderly or debilitated patients it is advisable to initiate treatment at a daily dose of '''7.5 to 15 mg'''.


*Clorazepate dipotassium tablets are indicated for the symptomatic relief of acute alcohol withdrawal.
:* Clorazepate dipotassium tablets may also be administered in a single dose daily at bedtime
::*  Recommended initial dose: '''15 mg'''. After the initial dose, the response of the patient may require adjustment of subsequent dosage. Lower doses may be indicated in the elderly patient. Drowsiness may occur at the initiation of treatment and with dosage increment.


===Dosage===
<h4>Symptomatic Relief of Acute Alcohol Withdrawal</h4>
====For the Symptomatic Relief of Anxiety====
*Clorazepate dipotassium tablets are administered orally in divided doses. The usual daily dose is 30 mg. The dose should be adjusted gradually within the range of 15 mg to 60 mg daily in accordance with the response of the patient. In elderly or debilitated patients it is advisable to initiate treatment at a daily dose of 7.5 mg to 15 mg.


*Clorazepate dipotassium tablets may also be administered in a single dose daily at bedtime; the recommended initial dose is 15 mg. After the initial dose, the response of the patient may require adjustment of subsequent dosage. Lower doses may be indicated in the elderly patient. Drowsiness may occur at the initiation of treatment and with dosage increment.
* '''Dosing information'''
:* The following dosage schedule is recommended


====For the Symptomatic Relief of Acute Alcohol Withdrawal====
The following dosage schedule is recommended:
[[File:Clorazepate1.png|thumb|none|400px|This image is provided by the National Library of Medicine.]]
[[File:Clorazepate1.png|thumb|none|400px|This image is provided by the National Library of Medicine.]]
*Thereafter, gradually reduce the daily dose to 7.5 mg to 15 mg. Discontinue drug therapy as soon as patient’s condition is stable.


*The maximum recommended total daily dose is 90 mg. Avoid excessive reductions in the total amount of drug administered on successive days.
:* Thereafter, gradually reduce the daily dose to '''7.5 to 15 mg'''. Discontinue drug therapy as soon as patient's condition is stable.


====As an Adjunct to Antiepileptic Drugs====
:* The maximum recommended total daily dose is '''90 mg'''. Avoid excessive reductions in the total amount of drug administered on successive days.
*In order to minimize drowsiness, the recommended initial dosages and dosage increments should not be exceeded.


====Adults====
<h4>Adjunct to Antiepileptic Drugs</h4>


*The maximum recommended initial dose in patients over 12 years old is 7.5 mg three times a day. Dosage should be increased by no more than 7.5 mg every week and should not exceed 90 mg/day.
* '''Dosing information'''
|offLabelAdultGuideSupport=There is limited information regarding <i>Off-Label Guideline-Supported Use</i> of Clorazepate Dipotassium in adult patients.
:* In order to minimize drowsiness, the recommended initial dosages and dosage increments should not be exceeded.
|offLabelAdultNoGuideSupport=There is limited information regarding <i>Off-Label Non–Guideline-Supported Use</i> of Clorazepate Dipotassium in adult patients.
|fdaLIADPed====Indications===


*Partial seizure; Adjunct
* Maximum recommended initial dose in patients over 12 years old: '''7.5 mg PO tid'''. Dosage should be increased by no more than '''7.5 mg every week''' and should not exceed '''90 mg/day'''.
===Dosage===
|offLabelAdultGuideSupport=* There is limited information regarding <i>Off-Label Guideline-Supported Use</i> of clorazepate in adult patients.
====Children: (9 to 12 years)====
|offLabelAdultNoGuideSupport=<h4>Epilepsy</h4>


*The maximum recommended initial dose is 7.5 mg two times a day. Dosage should be increased by no more than 7.5 mg every week and should not exceed 60 mg/day.
* '''Dosing information'''
|offLabelPedGuideSupport=There is limited information regarding <i>Off-Label Guideline-Supported Use</i> of Clorazepate Dipotassium in pediatric patients.
 
|offLabelPedNoGuideSupport=There is limited information regarding <i>Off-Label Non–Guideline-Supported Use</i> of Clorazepate Dipotassium in pediatric patients.
:* '''45 to 288 milligrams daily'''<ref name="pmid11357">{{cite journal| author=Feldman RG| title=Chlorazepate in temporal lobe epilepsy. | journal=JAMA | year= 1976 | volume= 236 | issue= 23 | pages= 2603 | pmid=11357 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=11357  }} </ref>
|contraindications=Clorazepate dipotassium tablets are contraindicated in patients with:
|fdaLIADPed=<h4>For children (9-12 years)</h4>
* known [[hypersensitivity]] to the drug.
 
* [[acute narrow angle glaucoma]].
* '''Dosing information'''
 
:* Maximum recommended initial dose: '''7.5 mg PO bid'''. Dosage should be increased by no more than '''7.5 mg every week''' and should not exceed '''60 mg/day'''.
|offLabelPedGuideSupport=* There is limited information regarding <i>Off-Label Guideline-Supported Use</i> of clorazepate in pediatric patients.
|offLabelPedNoGuideSupport=<h4>Epilepsy</h4>
 
* '''Dosing information'''
 
:* '''3.75 mg given 2 to 4 times daily'''<ref name="pmid2907857">{{cite journal| author=Naidu S, Gruener G, Brazis P| title=Excellent results with clorazepate in recalcitrant childhood epilepsies. | journal=Pediatr Neurol | year= 1986 | volume= 2 | issue= 1 | pages= 18-22 | pmid=2907857 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=2907857  }} </ref>
|contraindications=* Clorazepate dipotassium tablets are contraindicated in patients with a known [[hypersensitivity]] to the drug and in those with acute narrow angle [[glaucoma]].
|warnings=====Use in Depressive Neuroses or Psychotic Reactions====
|warnings=====Use in Depressive Neuroses or Psychotic Reactions====
Clorazepate dipotassium tablets are not recommended for use in depressive neuroses or in psychotic reactions.
*Clorazepate dipotassium tablets are not recommended for use in depressive neuroses or in psychotic reactions.


====Interference with Psychomotor Performance====
====Interference with Psychomotor Performance====
Patients taking clorazepate dipotassium tablets should be cautioned against engaging in hazardous occupations requiring mental alertness, such as operating dangerous machinery including motor vehicles.
*Patients taking clorazepate dipotassium tablets should be cautioned against engaging in hazardous occupations requiring mental alertness, such as operating dangerous machinery including motor vehicles.


====Concomitant Use with CNS Depressants====
====Concomitant Use with CNS Depressants====
Since clorazepate dipotassium has a central nervous system depressant effect, patients should be advised against the simultaneous use of other CNS depressant drugs, and cautioned that the effects of alcohol may be increased.
*Since clorazepate dipotassium has a central nervous system depressant effect, patients should be advised against the simultaneous use of other CNS depressant drugs, and cautioned that the effects of alcohol may be increased.


====Physical and Psychological Dependence====
====Physical and Psychological Dependence====
Withdrawal symptoms (similar in character to those noted with barbiturates and alcohol) have occurred following abrupt discontinuance of clorazepate. Withdrawal symptoms associated with the abrupt discontinuation of benzodiazepines have included convulsions, delirium, tremor, abdominal and muscle cramps, vomiting, sweating, nervousness, insomnia, irritability, diarrhea, and memory impairment. The more severe withdrawal symptoms have usually been limited to those patients who had received excessive doses over an extended period of time. Generally milder withdrawal symptoms have been reported following abrupt discontinuance of benzodiazepines taken continuously at therapeutic levels for several months. Consequently, after extended therapy, abrupt discontinuation of clorazepate should generally be avoided and a gradual dosage tapering schedule followed.
*Withdrawal symptoms (similar in character to those noted with barbiturates and alcohol) have occurred following abrupt discontinuance of clorazepate. Withdrawal symptoms associated with the abrupt discontinuation of benzodiazepines have included convulsions, delirium, tremor, abdominal and muscle cramps, vomiting, sweating, nervousness, insomnia, irritability, diarrhea, and memory impairment. The more severe withdrawal symptoms have usually been limited to those patients who had received excessive doses over an extended period of time. Generally milder withdrawal symptoms have been reported following abrupt discontinuance of benzodiazepines taken continuously at therapeutic levels for several months. Consequently, after extended therapy, abrupt discontinuation of clorazepate should generally be avoided and a gradual dosage tapering schedule followed.


Caution should be observed in patients who are considered to have a psychological potential for drug dependence.
*Caution should be observed in patients who are considered to have a psychological potential for drug dependence.


Evidence of drug dependence has been observed in dogs and rabbits which was characterized by convulsive seizures when the drug was abruptly withdrawn or the dose was reduced; the syndrome in dogs could be abolished by administration of clorazepate.
*Evidence of drug dependence has been observed in dogs and rabbits which was characterized by convulsive seizures when the drug was abruptly withdrawn or the dose was reduced; the syndrome in dogs could be abolished by administration of clorazepate.


====Suicidal Behavior and Ideation====
====Suicidal Behavior and Ideation====
Antiepileptic drugs (AEDs), including clorazepate dipotassium, increase the risk of suicidal thoughts or behavior in patients taking these drugs for any indication. Patients treated with any AED for any indication should be monitored for the emergence or worsening of depression, suicidal thoughts or behavior, and/or any unusual changes in mood or behavior.
*Antiepileptic drugs (AEDs), including clorazepate dipotassium, increase the risk of suicidal thoughts or behavior in patients taking these drugs for any indication. Patients treated with any AED for any indication should be monitored for the emergence or worsening of depression, suicidal thoughts or behavior, and/or any unusual changes in mood or behavior.


Pooled analyses of 199 placebo-controlled clinical trials (mono- and adjunctive therapy) of 11 different AEDs showed that patients randomized to one of the AEDs had approximately twice the risk (adjusted Relative Risk 1.8, 95% CI:1.2, 2.7) of suicidal thinking or behavior compared to patients randomized to placebo. In these trials, which had a median treatment duration of 12 weeks, the estimated incidence rate of suicidal behavior or ideation among 27,863 AED-treated patients was 0.43%, compared to 0.24% among 16,029 placebo-treated patients, representing an increase of approximately one case of suicidal thinking or behavior for every 530 patients treated. There were four suicides in drug-treated patients in the trials and none in placebo-treated patients, but the number is too small to allow any conclusion about drug effect on suicide.
*Pooled analyses of 199 placebo-controlled clinical trials (mono- and adjunctive therapy) of 11 different AEDs showed that patients randomized to one of the AEDs had approximately twice the risk (adjusted Relative Risk 1.8, 95% CI:1.2, 2.7) of suicidal thinking or behavior compared to patients randomized to placebo. In these trials, which had a median treatment duration of 12 weeks, the estimated incidence rate of suicidal behavior or ideation among 27,863 AED-treated patients was 0.43%, compared to 0.24% among 16,029 placebo-treated patients, representing an increase of approximately one case of suicidal thinking or behavior for every 530 patients treated. There were four suicides in drug-treated patients in the trials and none in placebo-treated patients, but the number is too small to allow any conclusion about drug effect on suicide.


The increased risk of suicidal thoughts or behavior with AEDs was observed as early as one week after starting drug treatment with AEDs and persisted for the duration of treatment assessed. Because most trials included in the analysis did not extend beyond 24 weeks, the risk of suicidal thoughts or behavior beyond 24 weeks could not be assessed.
*The increased risk of suicidal thoughts or behavior with AEDs was observed as early as one week after starting drug treatment with AEDs and persisted for the duration of treatment assessed. Because most trials included in the analysis did not extend beyond 24 weeks, the risk of suicidal thoughts or behavior beyond 24 weeks could not be assessed.


The risk of suicidal thoughts or behavior was generally consistent among drugs in the data analyzed. The finding of increased risk with AEDs of varying mechanisms of action and across a range of indications suggests that the risk applies to all AEDs used for any indication. The risk did not vary substantially by age (5 to 100 years) in the clinical trials analyzed. Table 1 shows absolute and relative risk by indication for all evaluated AEDs.
*The risk of suicidal thoughts or behavior was generally consistent among drugs in the data analyzed. The finding of increased risk with AEDs of varying mechanisms of action and across a range of indications suggests that the risk applies to all AEDs used for any indication. The risk did not vary substantially by age (5 to 100 years) in the clinical trials analyzed. Table 1 shows absolute and relative risk by indication for all evaluated AEDs.


[[File:Clorazepate2.png|thumb|none|400px|This image is provided by the National Library of Medicine.]]
[[File:Clorazepate2.png|thumb|none|400px|This image is provided by the National Library of Medicine.]]


The relative risk for suicidal thoughts or behavior was higher in clinical trials for epilepsy than in clinical trials for psychiatric or other conditions, but the absolute risk differences were similar for the epilepsy and psychiatric indications.
*The relative risk for suicidal thoughts or behavior was higher in clinical trials for epilepsy than in clinical trials for psychiatric or other conditions, but the absolute risk differences were similar for the epilepsy and psychiatric indications.


Anyone considering prescribing clorazepate dipotassium or any other AED must balance the risk of suicidal thoughts or behavior with the risk of untreated illness. Epilepsy and many other illnesses for which AEDs are prescribed are themselves associated with morbidity and mortality and an increased risk of suicidal thoughts and behavior. Should suicidal thoughts and behavior emerge during treatment, the prescriber needs to consider whether the emergence of these symptoms in any given patient may be related to the illness being treated.
*Anyone considering prescribing clorazepate dipotassium or any other AED must balance the risk of suicidal thoughts or behavior with the risk of untreated illness. Epilepsy and many other illnesses for which AEDs are prescribed are themselves associated with morbidity and mortality and an increased risk of suicidal thoughts and behavior. Should suicidal thoughts and behavior emerge during treatment, the prescriber needs to consider whether the emergence of these symptoms in any given patient may be related to the illness being treated.


Patients, their caregivers, and families should be informed that AEDs increase the risk of suicidal thoughts and behavior and should be advised of the need to be alert for the emergence or worsening of the signs and symptoms of depression, any unusual changes in mood or behavior, or the emergence of suicidal thoughts, behavior, or thoughts about self-harm. Behaviors of concern should be reported immediately to healthcare providers.
*Patients, their caregivers, and families should be informed that AEDs increase the risk of suicidal thoughts and behavior and should be advised of the need to be alert for the emergence or worsening of the signs and symptoms of depression, any unusual changes in mood or behavior, or the emergence of suicidal thoughts, behavior, or thoughts about self-harm. Behaviors of concern should be reported immediately to healthcare providers.
|clinicalTrials=The side effect most frequently reported was [[drowsiness]]. Less commonly reported (in descending order of occurrence) were: [[dizziness]], various gastrointestinal complaints, [[nervousness]], [[blurred vision]], [[dry mouth]], [[headache]], and [[mental confusion]]. Other side effects included [[insomnia]], transient [[skin rashes]], [[fatigue]], [[ataxia]], genitourinary complaints, irritability, [[diplopia]], [[depression]], [[tremor]], and [[slurred speech]].
|clinicalTrials=* The side effect most frequently reported was [[drowsiness]]. Less commonly reported (in descending order of occurrence) were: [[dizziness]], various gastrointestinal complaints, [[nervousness]], [[blurred vision]], [[dry mouth]], [[headache]], and [[mental confusion]]. Other side effects included [[insomnia]], [[transient skin rashes]], [[fatigue]], [[ataxia]], [[genitourinary complaints]], [[irritability]], [[diplopia]], [[depression]], [[tremor]] and slurred speech.


There have been reports of abnormal liver and kidney function tests and of decrease in hematocrit.
* There have been reports of abnormal liver and kidney function tests and of decrease in hematocrit.


Decrease in systolic blood pressure has been observed.
* Decrease in systolic blood pressure has been observed.
|postmarketing=There is limited information regarding <i>Postmarketing Experience</i> of Clorazepate Dipotassium.
|postmarketing=*There is limited information regarding Postmarketing Experience of Clorazepate Dipotassium
|drugInteractions=If clorazepate dipotassium is to be combined with other drugs acting on the central nervous system, careful consideration should be given to the pharmacology of the agents to be employed. Animal experience indicates that clorazepate dipotassium prolongs the sleeping time after hexobarbital or after ethyl alcohol, increases the inhibitory effects of chlorpromazine, but does not exhibit monoamine oxidase inhibition. Clinical studies have shown increased sedation with concurrent hypnotic medications. The actions of the benzodiazepines may be potentiated by barbiturates, narcotics, phenothiazines, monoamine oxidase inhibitors or other antidepressants.
|drugInteractions=* If clorazepate dipotassium is to be combined with other drugs acting on the central nervous system, careful consideration should be given to the pharmacology of the agents to be employed. Animal experience indicates that clorazepate dipotassium prolongs the sleeping time after hexobarbital or after ethyl alcohol, increases the inhibitory effects of [[chlorpromazine]], but does not exhibit monoamine oxidase inhibition. Clinical studies have shown increased sedation with concurrent hypnotic medications. The actions of the [[benzodiazepines]] may be potentiated by barbiturates, narcotics, phenothiazines, monoamine oxidase inhibitors or other [[antidepressants]].


If clorazepate dipotassium tablets are used to treat anxiety associated with somatic disease states, careful attention must be paid to possible drug interaction with concomitant medication.
* If clorazepate dipotassium tablets are used to treat [[anxiety]] associated with somatic disease states, careful attention must be paid to possible drug interaction with concomitant medication.


In bioavailability studies with normal subjects, the concurrent administration of antacids at therapeutic levels did not significantly influence the bioavailability of clorazepate dipotassium tablets.
* In bioavailability studies with normal subjects, the concurrent administration of antacids at therapeutic levels did not significantly influence the bioavailability of clorazepate dipotassium tablets.
|FDAPregCat=C
|useInPregnancyFDA=* An increased risk of congenital malformations associated with the use of minor tranquilizers ([[chlordiazepoxide]], [[diazepam]], and meprobamate) during the first trimester of pregnancy has been suggested in several studies. Clorazepate dipotassium, a [[benzodiazepine]] derivative, has not been studied adequately to determine whether it, too, may be associated with an increased risk of fetal abnormality. Because use of these drugs is rarely a matter of urgency, their use during this period should almost always be avoided. The possibility that a woman of childbearing potential may be pregnant at the time of institution of therapy should be considered. Patients should be advised that if they become pregnant during therapy or intend to become pregnant they should communicate with their physician about the desirability of discontinuing the drug.
|useInPregnancyFDA=An increased risk of congenital malformations associated with the use of minor tranquilizers (chlordiazepoxide, diazepam, and meprobamate) during the first trimester of pregnancy has been suggested in several studies. Clorazepate dipotassium, a benzodiazepine derivative, has not been studied adequately to determine whether it, too, may be associated with an increased risk of fetal abnormality. Because use of these drugs is rarely a matter of urgency, their use during this period should almost always be avoided. The possibility that a woman of childbearing potential may be pregnant at the time of institution of therapy should be considered. Patients should be advised that if they become pregnant during therapy or intend to become pregnant they should communicate with their physician about the desirability of discontinuing the drug.
|useInNursing=* Clorazepate dipotassium tablets should not be given to nursing mothers since it has been reported that [[nordiazepam]] is excreted in human breast milk.
|useInNursing=Clorazepate dipotassium tablets should not be given to nursing mothers since it has been reported that nordiazepam is excreted in human breast milk.
|useInPed=*Because of the lack of sufficient clinical experience, clorazepate dipotassium tablets are not recommended for use in patients less than 9 years of age.
|useInPed=Because of the lack of sufficient clinical experience, clorazepate dipotassium tablets are not recommended for use in patients less than 9 years of age.
|useInGeri=* Clinical studies of clorazepate dipotassium studies were not adequate to determine whether subjects aged 65 and over respond differently than younger subjects. Elderly or debilitated patients may be especially sensitive to the effects of all [[benzodiazepines]], including clorazepate dipotassium. In general, elderly or debilitated patients should be started on lower doses of clorazepate dipotassium tablets and observed closely, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and concomitant disease or other drug therapy. Dose adjustments should also be made slowly, and with more caution in this patient population
|administration=*Oral
|administration=* Oral
|monitoring=*Patients treated with any [[anti-epileptic]] drug for any indication should be monitored for the emergence or worsening of [[depression]], suicidal thoughts or behavior, and/or any unusual changes in mood or behavior.
|monitoring=*Patients treated with any [[anti-epileptic]] drug for any indication should be monitored for the emergence or worsening of [[depression]], suicidal thoughts or behavior, and/or any unusual changes in mood or behavior.
*Monitoring of the vital signs and close observation for patient with clorazepate dipotassium overdose.
*Monitoring of the vital signs and close observation for patient with clorazepate dipotassium overdose.
|overdose=Overdosage is usually manifested by varying degrees of CNS depression ranging from slight sedation to [[coma]]. As in the management of overdosage with any drug, it should be borne in mind that multiple agents may have been taken.
|IVCompat=* There is limited information about the IV compatibility.
|overdose=* Overdosage is usually manifested by varying degrees of [[CNS depression]] ranging from slight sedation to [[coma]]. As in the management of overdosage with any drug, it should be borne in mind that multiple agents may have been taken.


The treatment of overdosage should consist of the general measures employed in the management of overdosage of any [[CNS depressant]]. Gastric evacuation either by the induction of emesis, lavage, or both, should be performed immediately. General supportive care, including frequent monitoring of the vital signs and close observation of the patient, is indicated. Hypotension, though rarely reported, may occur with large overdoses. In such cases the use of agents such as [[norepinephrine bitartrate]] injection, USP or metaraminol bitartrate injection, USP should be considered.
* The treatment of overdosage should consist of the general measures employed in the management of overdosage of any [[CNS depressant]]. Gastric evacuation either by the induction of emesis, lavage, or both, should be performed immediately. General supportive care, including frequent monitoring of the vital signs and close observation of the patient is indicated. Hypotension though rarely reported, may occur with large overdoses. In such cases the use of agents such as Levophed® Bitartrate ([[norepinephrine bitartrate]] injection, USP) or Aramine® Injection metaraminol bitartrate injection, USP) should be considered.


While reports indicate that individuals have survived overdoses of clorazepate dipotassium as high as 450 mg to 675 mg, these doses are not necessarily an accurate indication of the amount of drug absorbed since the time interval between ingestion and the institution of treatment was not always known. Sedation in varying degrees was the most common physiological manifestation of clorazepate dipotassium overdosage. Deep coma when it occurred was usually associated with the ingestion of other drugs in addition to clorazepate dipotassium.
* While reports indicate that individuals have survived overdoses of clorazepate dipotassium as high as 450 to 675 mg, these doses are not necessarily an accurate indication of the amount of drug absorbed since the time interval between ingestion and the institution of treatment was not always known. Sedation in varying degrees was the most common physiological manifestation of clorazepate dipotassium overdosage. Deep [[coma]] when it occurred was usually associated with the ingestion of other drugs in addition to clorazepate dipotassium.


Flumazenil, a specific benzodiazepine receptor antagonist, is indicated for the complete or partial reversal of the sedative effects of benzodiazepines and may be used in situations when an overdose with a benzodiazepine is known or suspected. Prior to the administration of flumazenil, necessary measures should be instituted to secure airway, ventilation, and intravenous access. Flumazenil is intended as an adjunct to, not as a substitute for, proper management of benzodiazepine overdose. Patients treated with flumazenil should be monitored for resedation, respiratory depression, and other residual benzodiazepine effects for an appropriate period after treatment. The prescriber should be aware of a risk of seizure in association with flumazenil treatment, particularly in long-term benzodiazepine users and in cyclic antidepressant overdose. The complete flumazenil package insert including CONTRAINDICATIONS, WARNINGS, and PRECAUTIONS should be consulted prior to use.
* [[Flumazenil]], a specific benzodiazepine receptor antagonist, is indicated for the complete or partial reversal of the sedative effects of [[benzodiazepines]] and may be used in situations when an overdose with a [[benzodiazepine]] is known or suspected. Prior to the administration of [[flumazenil]], necessary measures should be instituted to secure airway, ventilation, and intravenous access. [[Flumazenil]] is intended as an adjunct to, not as a substitute for, proper management of [[benzodiazepine]] overdose. Patients treated with [[flumazenil]] should be monitored for resedation, respiratory depression, and other residual benzodiazepine effects for an appropriate period after treatment. The prescriber should be aware of a risk of seizure in association with flumazenil treatment, particularly in long-term benzodiazepine users and in cyclic antidepressant overdose.
|drugBox={{Drugbox2
|drugBox={{Drugbox2
| Verifiedfields = changed
| Verifiedfields = changed
Line 113: Line 117:
| verifiedrevid = 460044744
| verifiedrevid = 460044744
| IUPAC_name = ''7-chloro-2,3-dihydro-2-oxo-5-phenyl-<BR>1''H''-1,4-benzodiazepine-3-carboxylic acid''
| IUPAC_name = ''7-chloro-2,3-dihydro-2-oxo-5-phenyl-<BR>1''H''-1,4-benzodiazepine-3-carboxylic acid''
| image = Clorazepate.svg
| image = Clorazepate.png
| width = 200
| width = 200
| image2 = Clorazepate3d.png
| image2 = Clorazepate3d.png
Line 161: Line 165:
| StdInChIKey = DMKBGLSCDYFSGG-UHFFFAOYSA-N
| StdInChIKey = DMKBGLSCDYFSGG-UHFFFAOYSA-N
}}
}}
|storage=Store at 20° to 25°C (68° to 77°F). [See USP Controlled Room Temperature.]
|mechAction=* Pharmacologically, clorazepate dipotassium has the characteristics of the [[benzodiazepines]]. It has depressant effects on the central nervous system.
|structure=* Chemically, clorazepate dipotassium is a [[benzodiazepine]]. The empirical formula is C16H11ClK2N2O4; the molecular weight is 408.92; 1H-1, 4-Benzodiazepine-3-carboxylic acid, 7-chloro-2,3-dihydro-2-oxo-5-phenyl-, potassium salt compound with potassium hydroxide (1:1) and the structural formula may be represented as follows:
 
[[File:Clorazepate_structure_01.png|thumb|none|400px|This image is provided by the National Library of Medicine.]]
 
* The compound occurs as a fine, light yellow, practically odorless powder. It is insoluble in the common organic solvents, but very soluble in water. Aqueous solutions are unstable, clear, light yellow, and alkaline
|PD=* The primary metabolite, [[nordiazepam]], quickly appears in the blood stream. The serum half-life is about 2 days. The drug is metabolized in the liver and excreted primarily in the urine. Studies in healthy men have shown that clorazepate dipotassium has depressant effects on the central nervous system. Prolonged administration of single daily doses as high as 120 mg was without toxic effects. Abrupt cessation of high doses was followed in some patients by nervousness, [[insomnia]], irritability, [[diarrhea]], muscle aches, or memory impairment.
|PK=* Since orally administered clorazepate dipotassium is rapidly decarboxylated to form [[nordiazepam]], there is essentially no circulating parent drug. [[nordiazepam]], the primary metabolite, quickly appears in the blood and is eliminated from the plasma with an apparent half-life of about 40 to 50 hours. Plasma levels of [[nordiazepam]] increase proportionally with Clorazepate Dipotassium dose and show moderate accumulation with repeated administration. The protein binding of [[nor diazepam]] in plasma is high (97-98%).
 
* Within 10 days after oral administration of a 15 mg (50µCi) dose of 14C-Clorazepate dipotassium to two volunteers, 62-67% of the radioactivity was excreted in the urine and 15-19% was eliminated in the feces. Both subjects were still excreting measurable amounts of radioactivity in the urine (about l% of the 14C-dose) on day ten.
 
* [[Nordiazepam]] is further metabolized by hydroxylation. The major urinary metabolite is conjugated oxazepam (3-hydroxynordiazepam), and smaller amounts of conjugated p-hydroxy[[nordiazepam]] and [[nordiazepam]] are also found in the urine.
|nonClinToxic=* Studies in rats and monkeys have shown a substantial difference between doses producing tranquilizing, sedative and toxic effects. In rats, conditioned avoidance response was inhibited at an oral dose of 10 mg/kg; sedation was induced at 32 mg/kg; the LD50 was 1320 mg/kg. In monkeys aggressive behavior was reduced at an oral dose of 0.25 mg/kg; sedation ([[ataxia]]) was induced at 7.5 mg/kg; the LD50 could not be determined because of the emetic effect of large doses, but the LD50 exceeds 1600 mg/kg.
 
* Twenty-four dogs were given clorazepate dipotassium orally in a 22-month toxicity study; doses up to 75 mg/kg were given. Drug-related changes occurred in the liver; weight was increased and cholestasis with minimal hepatocellular damage was found, but lobular architecture remained well preserved.
 
* Eighteen rhesus monkeys were given oral doses of clorazepate dipotassium from 3 to 36 mg/kg daily for 52 weeks. All treated animals remained similar to control animals. Although total leucocyte count remained within normal limits it tended to fall in the female animals on the highest doses.
 
* Examination of all organs revealed no alterations attributable to clorazepate dipotassium. There was no damage to liver function or structure.
 
'''Reproduction Studies'''
 
* Standard fertility, reproduction, and teratology studies were conducted in rats and rabbits. Oral doses in rats up to 150 mg/kg and in rabbits up to 15 mg/kg produced no abnormalities in the fetuses. Clorazepate dipotassium did not alter the fertility indices or reproductive capacity of adult animals. As expected, the sedative effect of high doses interfered with care of the young by their mothers
|clinicalStudies=* FDA package insert for clorazepate contains no information regarding Clinical Studies.
|howSupplied=* The 7.5 mg tablets are peach round, scored tablets debossed with M above the score and 40 below the score on one side of the tablet and blank on the other side. They are available as follows:
 
:*NDC 67046-906-30
|storage=* Protect from moisture. Keep bottle tightly closed. Store between 20° to 25°C (68° to 70°F). Dispense in a USP tight, light-resistant container.
|packLabel=[[File:Clorazepate4.jpeg|thumb|none|400px|This image is provided by the National Library of Medicine.]]
[[File:Clorazepate5.jpeg|thumb|none|400px|This image is provided by the National Library of Medicine.]]
[[File:Clorazepate6.jpeg|thumb|none|400px|This image is provided by the National Library of Medicine.]]
|fdaPatientInfo=Read this Medication Guide before you start taking clorazepate dipotassium tablets and each time you get a refill. There may be new information. This information does not take the place of talking to your healthcare provider about your medical condition or treatment.
 
What is the most important information I should know about clorazepate dipotassium tablets?
 
Do not stop taking clorazepate dipotassium tablets without first talking to your healthcare provider.
 
Stopping clorazepate dipotassium tablets suddenly can cause serious problems.
 
*Clorazepate dipotassium tablets can cause serious side effects, including:
 
:*Clorazepate dipotassium tablets can make you sleepy or dizzy and can slow your thinking and motor skills.
:*Do not drive, operate heavy machinery, or do other dangerous activities until you know how clorazepate dipotassium tablets affect you.
:*Do not drink alcohol or take other drugs that may make you sleepy or dizzy while taking clorazepate dipotassium tablets without first talking to your healthcare provider. When taken with alcohol or drugs that cause sleepiness or dizziness, clorazepate dipotassium tablets may make your sleepiness or dizziness much worse.
*Clorazepate dipotassium tablets can cause abuse and dependence.
:*Do not stop taking clorazepate dipotassium tablets all of a sudden. Stopping clorazepate dipotassium tablets suddenly can cause seizures that do not stop, hearing or seeing things that are not there (hallucinations), shaking, and stomach and muscle cramps.
:*Talk to your doctor about slowly stopping clorazepate dipotassium tablets to avoid getting sick with withdrawal symptoms.
:*Physical dependence is not the same as drug addiction. Your healthcare provider can tell you more about the differences between physical dependence and drug addiction.
*Clorazepate dipotassium tablets are a federally controlled substance (C-IV) because it can be abused or lead to dependence. Keep clorazepate dipotassium tablets in a safe place to prevent misuse and abuse. Selling or giving away clorazepate dipotassium tablets may harm others, and is against the law. Tell your healthcare provider if you have ever abused or been dependent on alcohol, prescription medicines or street drugs.
*Clorazepate dipotassium tablets may harm your unborn or developing baby.
*Medicines like clorazepate dipotassium tablets can cause birth defects. Talk with your healthcare provider if you are pregnant or plan to become pregnant. Tell your healthcare provider right away if you become pregnant while taking clorazepate dipotassium tablets. You and your healthcare provider should decide if you will take clorazepate dipotassium tablets while you are pregnant. Birth defects may occur even in children born to women who are not taking any medicines and do not have other risk factors.
:*If you become pregnant while taking clorazepate dipotassium tablets, talk to your healthcare provider about registering with the North American Antiepileptic Drug Pregnancy Registry. You can register by calling 1-888-233-2334. The purpose of this registry is to collect information about the safety of antiepileptic drugs during pregnancy.
:*Clorazepate dipotassium can pass into breast milk. Talk to your healthcare provider about the best way to feed your baby if you take clorazepate dipotassium tablets. You and your healthcare provider should decide if you will take clorazepate dipotassium tablets or breast-feed. You should not do both.
*Like other antiepileptic drugs, clorazepate dipotassium tablets may cause suicidal thoughts or actions in a very small number of people, about 1 in 500. 
*Call your healthcare provider right away if you have any of these symptoms, especially if they are new, worse, or worry you:
:*thoughts about suicide or dying
:*attempts to commit suicide
:*new or worse depression
:*new or worse anxiety
:*feeling agitated or restless
:*panic attacks
:*trouble sleeping (insomnia)
:*new or worse irritability
:*acting aggressive, being angry, or violent
:*acting on dangerous impulses
:*an extreme increase in activity and talking (mania)
:*other unusual changes in behavior or mood
*How can I watch for early symptoms of suicidal thoughts and actions?
:*Pay attention to any changes, especially sudden changes, in mood, behaviors, thoughts, or feelings.
:*Keep all follow-up visits with your healthcare provider as scheduled.
*Call your healthcare provider between visits as needed, especially if you are worried about symptoms.
*Do not stop clorazepate dipotassium tablets without first talking to a healthcare provider.
Stopping clorazepate dipotassium tablets suddenly can cause serious problems.
*Stopping a seizure medicine suddenly in a patient who has epilepsy can cause seizures that will not stop (status epilepticus).
*Suicidal thoughts or actions can be caused by things other than medicines. If you have suicidal thoughts or actions, your healthcare provider may check for other causes.
What are clorazepate dipotassium tablets?
 
Clorazepate dipotassium tablets are a prescription medicine used:
 
*to treat anxiety disorders
*with other medicines to treat partial seizures
*to treat the symptoms of sudden alcohol withdrawal
 
Who should not take clorazepate dipotassium tablets?
 
Do not take clorazepate dipotassium tablets if you:
 
*are allergic to clorazepate dipotassium or any of the ingredients in clorazepate dipotassium tablets. See the end of this Medication Guide for a complete list of ingredients in clorazepate dipotassium tablets.
*have an eye disease called acute narrow angle glaucoma.
 
What should I tell my healthcare provider before taking clorazepate dipotassium tablets?
 
Before you take clorazepate dipotassium tablets, tell your healthcare provider if you:
 
*have liver or kidney problems
*have or have had depression, mood problems, or suicidal thoughts or behavior
*have a history of abnormal thinking and behavior (psychotic reactions)
*have any other medical conditions
 
Tell your healthcare provider about all the medicines you take, including prescription and non-prescription medicines, vitamins and herbal supplements. Taking clorazepate dipotassium tablets with certain other medicines can cause side effects or affect how well they work. Do not start or stop other medicines without talking to your healthcare provider.
 
Know the medicines you take. Keep a list of them and show it to your healthcare provider and pharmacist when you get a new medicine.
 
How should I take clorazepate dipotassium tablets?
 
*Take clorazepate dipotassium tablets exactly as prescribed. Your healthcare provider will tell you how much clorazepate dipotassium tablets to take.
*Your healthcare provider may change your dose. Do not change your dose of clorazepate dipotassium tablets without talking to your healthcare provider.
*Do not stop taking clorazepate dipotassium tablets without first talking to your healthcare provider. Stopping clorazepate dipotassium tablets suddenly can cause serious problems.
*If you take too much clorazepate dipotassium tablets, call your healthcare provider or local Poison Control Center right away.
What are the possible side effects of clorazepate dipotassium tablets?
 
See “What is the most important information I should know about clorazepate dipotassium tablets?”.
 
The most common side effects of clorazepate dipotassium tablets include:
 
*drowsiness
*dizziness
*upset stomach
*blurred vision
*dry mouth
*confusion
 
These are not all the possible side effects of clorazepate dipotassium tablets. For more information ask your healthcare provider or pharmacist.
 
Tell your healthcare provider if you have any side effect that bothers you or that does not go away.
 
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
 
How should I store clorazepate dipotassium tablets?
 
*Store clorazepate dipotassium tablets between 20° to 25°C (68° to 77°F).
*Keep clorazepate dipotassium tablets in a tightly closed container.
*Keep clorazepate dipotassium tablets out of the light.
*Keep clorazepate dipotassium tablets dry.
*Keep clorazepate dipotassium tablets and all medicines away from children.
 
General Information about Clorazepate Dipotassium Tablets
 
Medicines are sometimes prescribed for purposes other than those listed in a Medication Guide. Do not use clorazepate dipotassium tablets for a condition for which it was not prescribed. Do not give clorazepate dipotassium tablets to other people, even if they have the same symptoms that you have. It may harm them.


Protect from light.
This Medication Guide summarizes the most important information about clorazepate dipotassium tablets. If you would like more information, talk with your healthcare provider. You can ask your pharmacist or healthcare provider for information about clorazepate dipotassium tablets that is written for health professionals.


Dispense in a tight, light-resistant container as defined in the USP using a child-resistant closure.
For more information about clorazepate dipotassium tablets, contact Mylan Pharmaceuticals Inc. toll free at 1-877-446-3679 (1-877-4-INFO-RX).
|alcohol=Alcohol-Clorazepate Dipotassium interaction has not been established. Talk to your doctor about the effects of taking alcohol with this medication.
 
What are the ingredients in clorazepate dipotassium tablets, USP?
 
Active ingredient: clorazepate dipotassium, USP
 
Inactive ingredients: croscarmellose sodium, magnesium oxide, magnesium stearate, microcrystalline cellulose, potassium carbonate, sodium chloride, sodium lauryl sulfate and the following coloring agents:
 
3.75 mg - FD&C Blue No. 2 Aluminum Lake
7.5 mg - FD&C Yellow No. 6 Aluminum Lake
 
This Medication Guide has been approved by the U.S. Food and Drug Administration.
 
|alcohol=* Alcohol-Clorazepate interaction has not been established. Talk to your doctor about the effects of taking [[alcohol]] with this medication.
|brandNames=*CLORAZEPATE DIPOTASSIUM ®<ref>{{Cite web | title = CLORAZEPATE DIPOTASSIUM- clorazepate dipotassium tablet  | url = http://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=9acbb3f4-4bf6-40ae-89e3-303ec167912c#i4i_section_id_0e326a20-dc89-4391-8110-72763b4278e4}}</ref>
* Gen-Xene
* Tranxene T-Tab
* Tranxene-SD
* Tranxene
|lookAlike=There is limited information about the look alike drug names.
}}
{{PillImage
|fileName=Clorazepate_7.5 mg_NDC 0378-0040.jpg
|drugName=Clorazepate Dipotassium 7.5 MG Oral Tablet
|NDC=0378-0040
|drugAuthor=Mylan Pharmaceuticals Inc.
|ingredients=croscarmellose sodium, fd&c yellow no. 6, magnesium oxide, magnesium stearate, cellulose, microcrystalline, potassium carbonate, sodium chloride, sodium lauryl sulfate
|pillImprint=M;40
|dosageValue=7.5
|dosageUnit=mg
|pillColor=Orange
|pillShape=Round
|pillSize=8.00
|pillScore=2
}}
{{LabelImage
|fileName=Clorazepate_label_01.jpg
}}
}}
{{LabelImage
|fileName=Clorazepate_panel_01.png
}}
[[Category:Benzodiazepines]]
[[Category:Hypnotics]]
[[Category:Drug]]

Latest revision as of 19:19, 18 August 2015

Clorazepate Dipotassium
Adult Indications & Dosage
Pediatric Indications & Dosage
Contraindications
Warnings & Precautions
Adverse Reactions
Drug Interactions
Use in Specific Populations
Administration & Monitoring
Overdosage
Pharmacology
Clinical Studies
How Supplied
Images
Patient Counseling Information
Precautions with Alcohol
Brand Names
Look-Alike Names

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Sheng Shi, M.D. [2]; Turky Alkathery, M.D. [3]

Disclaimer

WikiDoc MAKES NO GUARANTEE OF VALIDITY. WikiDoc is not a professional health care provider, nor is it a suitable replacement for a licensed healthcare provider. WikiDoc is intended to be an educational tool, not a tool for any form of healthcare delivery. The educational content on WikiDoc drug pages is based upon the FDA package insert, National Library of Medicine content and practice guidelines / consensus statements. WikiDoc does not promote the administration of any medication or device that is not consistent with its labeling. Please read our full disclaimer here.

Overview

Clorazepate Dipotassium is a benzodiazepine that is FDA approved for the treatment of anxiety disorders and symptomatic relief of acute alcohol withdrawal. Common adverse reactions include drowsiness, dizziness, various gastrointestinal complaints, nervousness, blurred vision, dry mouth, headache, and mental confusion.

Adult Indications and Dosage

FDA-Labeled Indications and Dosage (Adult)

Symptomatic Relief of Anxiety

  • Dosing information
  • Clorazepate dipotassium tablets are administered orally in divided doses.
  • Usual daily dose: 30 mg. The dose should be adjusted gradually within the range of 15 to 60 mg daily in accordance with the response of the patient. In elderly or debilitated patients it is advisable to initiate treatment at a daily dose of 7.5 to 15 mg.
  • Clorazepate dipotassium tablets may also be administered in a single dose daily at bedtime
  • Recommended initial dose: 15 mg. After the initial dose, the response of the patient may require adjustment of subsequent dosage. Lower doses may be indicated in the elderly patient. Drowsiness may occur at the initiation of treatment and with dosage increment.

Symptomatic Relief of Acute Alcohol Withdrawal

  • Dosing information
  • The following dosage schedule is recommended
This image is provided by the National Library of Medicine.
  • Thereafter, gradually reduce the daily dose to 7.5 to 15 mg. Discontinue drug therapy as soon as patient's condition is stable.
  • The maximum recommended total daily dose is 90 mg. Avoid excessive reductions in the total amount of drug administered on successive days.

Adjunct to Antiepileptic Drugs

  • Dosing information
  • In order to minimize drowsiness, the recommended initial dosages and dosage increments should not be exceeded.
  • Maximum recommended initial dose in patients over 12 years old: 7.5 mg PO tid. Dosage should be increased by no more than 7.5 mg every week and should not exceed 90 mg/day.

Off-Label Use and Dosage (Adult)

Guideline-Supported Use

  • There is limited information regarding Off-Label Guideline-Supported Use of clorazepate in adult patients.

Non–Guideline-Supported Use

Epilepsy

  • Dosing information
  • 45 to 288 milligrams daily[1]

Pediatric Indications and Dosage

FDA-Labeled Indications and Dosage (Pediatric)

For children (9-12 years)

  • Dosing information
  • Maximum recommended initial dose: 7.5 mg PO bid. Dosage should be increased by no more than 7.5 mg every week and should not exceed 60 mg/day.

Off-Label Use and Dosage (Pediatric)

Guideline-Supported Use

  • There is limited information regarding Off-Label Guideline-Supported Use of clorazepate in pediatric patients.

Non–Guideline-Supported Use

Epilepsy

  • Dosing information
  • 3.75 mg given 2 to 4 times daily[2]

Contraindications

  • Clorazepate dipotassium tablets are contraindicated in patients with a known hypersensitivity to the drug and in those with acute narrow angle glaucoma.

Warnings

Use in Depressive Neuroses or Psychotic Reactions

  • Clorazepate dipotassium tablets are not recommended for use in depressive neuroses or in psychotic reactions.

Interference with Psychomotor Performance

  • Patients taking clorazepate dipotassium tablets should be cautioned against engaging in hazardous occupations requiring mental alertness, such as operating dangerous machinery including motor vehicles.

Concomitant Use with CNS Depressants

  • Since clorazepate dipotassium has a central nervous system depressant effect, patients should be advised against the simultaneous use of other CNS depressant drugs, and cautioned that the effects of alcohol may be increased.

Physical and Psychological Dependence

  • Withdrawal symptoms (similar in character to those noted with barbiturates and alcohol) have occurred following abrupt discontinuance of clorazepate. Withdrawal symptoms associated with the abrupt discontinuation of benzodiazepines have included convulsions, delirium, tremor, abdominal and muscle cramps, vomiting, sweating, nervousness, insomnia, irritability, diarrhea, and memory impairment. The more severe withdrawal symptoms have usually been limited to those patients who had received excessive doses over an extended period of time. Generally milder withdrawal symptoms have been reported following abrupt discontinuance of benzodiazepines taken continuously at therapeutic levels for several months. Consequently, after extended therapy, abrupt discontinuation of clorazepate should generally be avoided and a gradual dosage tapering schedule followed.
  • Caution should be observed in patients who are considered to have a psychological potential for drug dependence.
  • Evidence of drug dependence has been observed in dogs and rabbits which was characterized by convulsive seizures when the drug was abruptly withdrawn or the dose was reduced; the syndrome in dogs could be abolished by administration of clorazepate.

Suicidal Behavior and Ideation

  • Antiepileptic drugs (AEDs), including clorazepate dipotassium, increase the risk of suicidal thoughts or behavior in patients taking these drugs for any indication. Patients treated with any AED for any indication should be monitored for the emergence or worsening of depression, suicidal thoughts or behavior, and/or any unusual changes in mood or behavior.
  • Pooled analyses of 199 placebo-controlled clinical trials (mono- and adjunctive therapy) of 11 different AEDs showed that patients randomized to one of the AEDs had approximately twice the risk (adjusted Relative Risk 1.8, 95% CI:1.2, 2.7) of suicidal thinking or behavior compared to patients randomized to placebo. In these trials, which had a median treatment duration of 12 weeks, the estimated incidence rate of suicidal behavior or ideation among 27,863 AED-treated patients was 0.43%, compared to 0.24% among 16,029 placebo-treated patients, representing an increase of approximately one case of suicidal thinking or behavior for every 530 patients treated. There were four suicides in drug-treated patients in the trials and none in placebo-treated patients, but the number is too small to allow any conclusion about drug effect on suicide.
  • The increased risk of suicidal thoughts or behavior with AEDs was observed as early as one week after starting drug treatment with AEDs and persisted for the duration of treatment assessed. Because most trials included in the analysis did not extend beyond 24 weeks, the risk of suicidal thoughts or behavior beyond 24 weeks could not be assessed.
  • The risk of suicidal thoughts or behavior was generally consistent among drugs in the data analyzed. The finding of increased risk with AEDs of varying mechanisms of action and across a range of indications suggests that the risk applies to all AEDs used for any indication. The risk did not vary substantially by age (5 to 100 years) in the clinical trials analyzed. Table 1 shows absolute and relative risk by indication for all evaluated AEDs.
This image is provided by the National Library of Medicine.
  • The relative risk for suicidal thoughts or behavior was higher in clinical trials for epilepsy than in clinical trials for psychiatric or other conditions, but the absolute risk differences were similar for the epilepsy and psychiatric indications.
  • Anyone considering prescribing clorazepate dipotassium or any other AED must balance the risk of suicidal thoughts or behavior with the risk of untreated illness. Epilepsy and many other illnesses for which AEDs are prescribed are themselves associated with morbidity and mortality and an increased risk of suicidal thoughts and behavior. Should suicidal thoughts and behavior emerge during treatment, the prescriber needs to consider whether the emergence of these symptoms in any given patient may be related to the illness being treated.
  • Patients, their caregivers, and families should be informed that AEDs increase the risk of suicidal thoughts and behavior and should be advised of the need to be alert for the emergence or worsening of the signs and symptoms of depression, any unusual changes in mood or behavior, or the emergence of suicidal thoughts, behavior, or thoughts about self-harm. Behaviors of concern should be reported immediately to healthcare providers.

Adverse Reactions

Clinical Trials Experience

  • There have been reports of abnormal liver and kidney function tests and of decrease in hematocrit.
  • Decrease in systolic blood pressure has been observed.

Postmarketing Experience

  • There is limited information regarding Postmarketing Experience of Clorazepate Dipotassium

Drug Interactions

  • If clorazepate dipotassium is to be combined with other drugs acting on the central nervous system, careful consideration should be given to the pharmacology of the agents to be employed. Animal experience indicates that clorazepate dipotassium prolongs the sleeping time after hexobarbital or after ethyl alcohol, increases the inhibitory effects of chlorpromazine, but does not exhibit monoamine oxidase inhibition. Clinical studies have shown increased sedation with concurrent hypnotic medications. The actions of the benzodiazepines may be potentiated by barbiturates, narcotics, phenothiazines, monoamine oxidase inhibitors or other antidepressants.
  • If clorazepate dipotassium tablets are used to treat anxiety associated with somatic disease states, careful attention must be paid to possible drug interaction with concomitant medication.
  • In bioavailability studies with normal subjects, the concurrent administration of antacids at therapeutic levels did not significantly influence the bioavailability of clorazepate dipotassium tablets.

Use in Specific Populations

Pregnancy

Pregnancy Category (FDA):

  • An increased risk of congenital malformations associated with the use of minor tranquilizers (chlordiazepoxide, diazepam, and meprobamate) during the first trimester of pregnancy has been suggested in several studies. Clorazepate dipotassium, a benzodiazepine derivative, has not been studied adequately to determine whether it, too, may be associated with an increased risk of fetal abnormality. Because use of these drugs is rarely a matter of urgency, their use during this period should almost always be avoided. The possibility that a woman of childbearing potential may be pregnant at the time of institution of therapy should be considered. Patients should be advised that if they become pregnant during therapy or intend to become pregnant they should communicate with their physician about the desirability of discontinuing the drug.


Pregnancy Category (AUS): There is no Australian Drug Evaluation Committee (ADEC) guidance on usage of Clorazepate Dipotassium in women who are pregnant.

Labor and Delivery

There is no FDA guidance on use of Clorazepate Dipotassium during labor and delivery.

Nursing Mothers

  • Clorazepate dipotassium tablets should not be given to nursing mothers since it has been reported that nordiazepam is excreted in human breast milk.

Pediatric Use

  • Because of the lack of sufficient clinical experience, clorazepate dipotassium tablets are not recommended for use in patients less than 9 years of age.

Geriatic Use

  • Clinical studies of clorazepate dipotassium studies were not adequate to determine whether subjects aged 65 and over respond differently than younger subjects. Elderly or debilitated patients may be especially sensitive to the effects of all benzodiazepines, including clorazepate dipotassium. In general, elderly or debilitated patients should be started on lower doses of clorazepate dipotassium tablets and observed closely, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and concomitant disease or other drug therapy. Dose adjustments should also be made slowly, and with more caution in this patient population

Gender

There is no FDA guidance on the use of Clorazepate Dipotassium with respect to specific gender populations.

Race

There is no FDA guidance on the use of Clorazepate Dipotassium with respect to specific racial populations.

Renal Impairment

There is no FDA guidance on the use of Clorazepate Dipotassium in patients with renal impairment.

Hepatic Impairment

There is no FDA guidance on the use of Clorazepate Dipotassium in patients with hepatic impairment.

Females of Reproductive Potential and Males

There is no FDA guidance on the use of Clorazepate Dipotassium in women of reproductive potentials and males.

Immunocompromised Patients

There is no FDA guidance one the use of Clorazepate Dipotassium in patients who are immunocompromised.

Administration and Monitoring

Administration

  • Oral

Monitoring

  • Patients treated with any anti-epileptic drug for any indication should be monitored for the emergence or worsening of depression, suicidal thoughts or behavior, and/or any unusual changes in mood or behavior.
  • Monitoring of the vital signs and close observation for patient with clorazepate dipotassium overdose.

IV Compatibility

  • There is limited information about the IV compatibility.

Overdosage

  • Overdosage is usually manifested by varying degrees of CNS depression ranging from slight sedation to coma. As in the management of overdosage with any drug, it should be borne in mind that multiple agents may have been taken.
  • The treatment of overdosage should consist of the general measures employed in the management of overdosage of any CNS depressant. Gastric evacuation either by the induction of emesis, lavage, or both, should be performed immediately. General supportive care, including frequent monitoring of the vital signs and close observation of the patient is indicated. Hypotension though rarely reported, may occur with large overdoses. In such cases the use of agents such as Levophed® Bitartrate (norepinephrine bitartrate injection, USP) or Aramine® Injection metaraminol bitartrate injection, USP) should be considered.
  • While reports indicate that individuals have survived overdoses of clorazepate dipotassium as high as 450 to 675 mg, these doses are not necessarily an accurate indication of the amount of drug absorbed since the time interval between ingestion and the institution of treatment was not always known. Sedation in varying degrees was the most common physiological manifestation of clorazepate dipotassium overdosage. Deep coma when it occurred was usually associated with the ingestion of other drugs in addition to clorazepate dipotassium.
  • Flumazenil, a specific benzodiazepine receptor antagonist, is indicated for the complete or partial reversal of the sedative effects of benzodiazepines and may be used in situations when an overdose with a benzodiazepine is known or suspected. Prior to the administration of flumazenil, necessary measures should be instituted to secure airway, ventilation, and intravenous access. Flumazenil is intended as an adjunct to, not as a substitute for, proper management of benzodiazepine overdose. Patients treated with flumazenil should be monitored for resedation, respiratory depression, and other residual benzodiazepine effects for an appropriate period after treatment. The prescriber should be aware of a risk of seizure in association with flumazenil treatment, particularly in long-term benzodiazepine users and in cyclic antidepressant overdose.

Pharmacology

Template:Px
Template:Px
Clorazepate Dipotassium
Systematic (IUPAC) name
7-chloro-2,3-dihydro-2-oxo-5-phenyl-
1
H-1,4-benzodiazepine-3-carboxylic acid
Identifiers
CAS number 23887-31-2

57109-90-7 (potassium salt)
ATC code N05BA05
PubChem 2809
DrugBank DB00628
Chemical data
Formula Template:OrganicBox atomTemplate:OrganicBox atomTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBox atomTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBox atomTemplate:OrganicBoxTemplate:OrganicBox atomTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBox 
Mol. mass 314.72 g/mol
SMILES eMolecules & PubChem
Pharmacokinetic data
Bioavailability 91%
Metabolism Hepatic
Half life 48 hours
Excretion Renal
Therapeutic considerations
Pregnancy cat.

D(US)

Legal status

Schedule IV(US)

Routes Oral

Mechanism of Action

  • Pharmacologically, clorazepate dipotassium has the characteristics of the benzodiazepines. It has depressant effects on the central nervous system.

Structure

  • Chemically, clorazepate dipotassium is a benzodiazepine. The empirical formula is C16H11ClK2N2O4; the molecular weight is 408.92; 1H-1, 4-Benzodiazepine-3-carboxylic acid, 7-chloro-2,3-dihydro-2-oxo-5-phenyl-, potassium salt compound with potassium hydroxide (1:1) and the structural formula may be represented as follows:
This image is provided by the National Library of Medicine.
  • The compound occurs as a fine, light yellow, practically odorless powder. It is insoluble in the common organic solvents, but very soluble in water. Aqueous solutions are unstable, clear, light yellow, and alkaline

Pharmacodynamics

  • The primary metabolite, nordiazepam, quickly appears in the blood stream. The serum half-life is about 2 days. The drug is metabolized in the liver and excreted primarily in the urine. Studies in healthy men have shown that clorazepate dipotassium has depressant effects on the central nervous system. Prolonged administration of single daily doses as high as 120 mg was without toxic effects. Abrupt cessation of high doses was followed in some patients by nervousness, insomnia, irritability, diarrhea, muscle aches, or memory impairment.

Pharmacokinetics

  • Since orally administered clorazepate dipotassium is rapidly decarboxylated to form nordiazepam, there is essentially no circulating parent drug. nordiazepam, the primary metabolite, quickly appears in the blood and is eliminated from the plasma with an apparent half-life of about 40 to 50 hours. Plasma levels of nordiazepam increase proportionally with Clorazepate Dipotassium dose and show moderate accumulation with repeated administration. The protein binding of nor diazepam in plasma is high (97-98%).
  • Within 10 days after oral administration of a 15 mg (50µCi) dose of 14C-Clorazepate dipotassium to two volunteers, 62-67% of the radioactivity was excreted in the urine and 15-19% was eliminated in the feces. Both subjects were still excreting measurable amounts of radioactivity in the urine (about l% of the 14C-dose) on day ten.
  • Nordiazepam is further metabolized by hydroxylation. The major urinary metabolite is conjugated oxazepam (3-hydroxynordiazepam), and smaller amounts of conjugated p-hydroxynordiazepam and nordiazepam are also found in the urine.

Nonclinical Toxicology

  • Studies in rats and monkeys have shown a substantial difference between doses producing tranquilizing, sedative and toxic effects. In rats, conditioned avoidance response was inhibited at an oral dose of 10 mg/kg; sedation was induced at 32 mg/kg; the LD50 was 1320 mg/kg. In monkeys aggressive behavior was reduced at an oral dose of 0.25 mg/kg; sedation (ataxia) was induced at 7.5 mg/kg; the LD50 could not be determined because of the emetic effect of large doses, but the LD50 exceeds 1600 mg/kg.
  • Twenty-four dogs were given clorazepate dipotassium orally in a 22-month toxicity study; doses up to 75 mg/kg were given. Drug-related changes occurred in the liver; weight was increased and cholestasis with minimal hepatocellular damage was found, but lobular architecture remained well preserved.
  • Eighteen rhesus monkeys were given oral doses of clorazepate dipotassium from 3 to 36 mg/kg daily for 52 weeks. All treated animals remained similar to control animals. Although total leucocyte count remained within normal limits it tended to fall in the female animals on the highest doses.
  • Examination of all organs revealed no alterations attributable to clorazepate dipotassium. There was no damage to liver function or structure.

Reproduction Studies

  • Standard fertility, reproduction, and teratology studies were conducted in rats and rabbits. Oral doses in rats up to 150 mg/kg and in rabbits up to 15 mg/kg produced no abnormalities in the fetuses. Clorazepate dipotassium did not alter the fertility indices or reproductive capacity of adult animals. As expected, the sedative effect of high doses interfered with care of the young by their mothers

Clinical Studies

  • FDA package insert for clorazepate contains no information regarding Clinical Studies.

How Supplied

  • The 7.5 mg tablets are peach round, scored tablets debossed with M above the score and 40 below the score on one side of the tablet and blank on the other side. They are available as follows:
  • NDC 67046-906-30

Storage

  • Protect from moisture. Keep bottle tightly closed. Store between 20° to 25°C (68° to 70°F). Dispense in a USP tight, light-resistant container.

Images

Drug Images

{{#ask: Page Name::Clorazepate Dipotassium |?Pill Name |?Drug Name |?Pill Ingred |?Pill Imprint |?Pill Dosage |?Pill Color |?Pill Shape |?Pill Size (mm) |?Pill Scoring |?NDC |?Drug Author |format=template |template=DrugPageImages |mainlabel=- |sort=Pill Name }}

Package and Label Display Panel

This image is provided by the National Library of Medicine.
This image is provided by the National Library of Medicine.
This image is provided by the National Library of Medicine.

{{#ask: Label Page::Clorazepate Dipotassium |?Label Name |format=template |template=DrugLabelImages |mainlabel=- |sort=Label Page }}

Patient Counseling Information

Read this Medication Guide before you start taking clorazepate dipotassium tablets and each time you get a refill. There may be new information. This information does not take the place of talking to your healthcare provider about your medical condition or treatment.

What is the most important information I should know about clorazepate dipotassium tablets?

Do not stop taking clorazepate dipotassium tablets without first talking to your healthcare provider.

Stopping clorazepate dipotassium tablets suddenly can cause serious problems.

  • Clorazepate dipotassium tablets can cause serious side effects, including:
  • Clorazepate dipotassium tablets can make you sleepy or dizzy and can slow your thinking and motor skills.
  • Do not drive, operate heavy machinery, or do other dangerous activities until you know how clorazepate dipotassium tablets affect you.
  • Do not drink alcohol or take other drugs that may make you sleepy or dizzy while taking clorazepate dipotassium tablets without first talking to your healthcare provider. When taken with alcohol or drugs that cause sleepiness or dizziness, clorazepate dipotassium tablets may make your sleepiness or dizziness much worse.
  • Clorazepate dipotassium tablets can cause abuse and dependence.
  • Do not stop taking clorazepate dipotassium tablets all of a sudden. Stopping clorazepate dipotassium tablets suddenly can cause seizures that do not stop, hearing or seeing things that are not there (hallucinations), shaking, and stomach and muscle cramps.
  • Talk to your doctor about slowly stopping clorazepate dipotassium tablets to avoid getting sick with withdrawal symptoms.
  • Physical dependence is not the same as drug addiction. Your healthcare provider can tell you more about the differences between physical dependence and drug addiction.
  • Clorazepate dipotassium tablets are a federally controlled substance (C-IV) because it can be abused or lead to dependence. Keep clorazepate dipotassium tablets in a safe place to prevent misuse and abuse. Selling or giving away clorazepate dipotassium tablets may harm others, and is against the law. Tell your healthcare provider if you have ever abused or been dependent on alcohol, prescription medicines or street drugs.
  • Clorazepate dipotassium tablets may harm your unborn or developing baby.
  • Medicines like clorazepate dipotassium tablets can cause birth defects. Talk with your healthcare provider if you are pregnant or plan to become pregnant. Tell your healthcare provider right away if you become pregnant while taking clorazepate dipotassium tablets. You and your healthcare provider should decide if you will take clorazepate dipotassium tablets while you are pregnant. Birth defects may occur even in children born to women who are not taking any medicines and do not have other risk factors.
  • If you become pregnant while taking clorazepate dipotassium tablets, talk to your healthcare provider about registering with the North American Antiepileptic Drug Pregnancy Registry. You can register by calling 1-888-233-2334. The purpose of this registry is to collect information about the safety of antiepileptic drugs during pregnancy.
  • Clorazepate dipotassium can pass into breast milk. Talk to your healthcare provider about the best way to feed your baby if you take clorazepate dipotassium tablets. You and your healthcare provider should decide if you will take clorazepate dipotassium tablets or breast-feed. You should not do both.
  • Like other antiepileptic drugs, clorazepate dipotassium tablets may cause suicidal thoughts or actions in a very small number of people, about 1 in 500.
  • Call your healthcare provider right away if you have any of these symptoms, especially if they are new, worse, or worry you:
  • thoughts about suicide or dying
  • attempts to commit suicide
  • new or worse depression
  • new or worse anxiety
  • feeling agitated or restless
  • panic attacks
  • trouble sleeping (insomnia)
  • new or worse irritability
  • acting aggressive, being angry, or violent
  • acting on dangerous impulses
  • an extreme increase in activity and talking (mania)
  • other unusual changes in behavior or mood
  • How can I watch for early symptoms of suicidal thoughts and actions?
  • Pay attention to any changes, especially sudden changes, in mood, behaviors, thoughts, or feelings.
  • Keep all follow-up visits with your healthcare provider as scheduled.
  • Call your healthcare provider between visits as needed, especially if you are worried about symptoms.
  • Do not stop clorazepate dipotassium tablets without first talking to a healthcare provider.

Stopping clorazepate dipotassium tablets suddenly can cause serious problems.

  • Stopping a seizure medicine suddenly in a patient who has epilepsy can cause seizures that will not stop (status epilepticus).
  • Suicidal thoughts or actions can be caused by things other than medicines. If you have suicidal thoughts or actions, your healthcare provider may check for other causes.

What are clorazepate dipotassium tablets?

Clorazepate dipotassium tablets are a prescription medicine used:

  • to treat anxiety disorders
  • with other medicines to treat partial seizures
  • to treat the symptoms of sudden alcohol withdrawal

Who should not take clorazepate dipotassium tablets?

Do not take clorazepate dipotassium tablets if you:

  • are allergic to clorazepate dipotassium or any of the ingredients in clorazepate dipotassium tablets. See the end of this Medication Guide for a complete list of ingredients in clorazepate dipotassium tablets.
  • have an eye disease called acute narrow angle glaucoma.

What should I tell my healthcare provider before taking clorazepate dipotassium tablets?

Before you take clorazepate dipotassium tablets, tell your healthcare provider if you:

  • have liver or kidney problems
  • have or have had depression, mood problems, or suicidal thoughts or behavior
  • have a history of abnormal thinking and behavior (psychotic reactions)
  • have any other medical conditions

Tell your healthcare provider about all the medicines you take, including prescription and non-prescription medicines, vitamins and herbal supplements. Taking clorazepate dipotassium tablets with certain other medicines can cause side effects or affect how well they work. Do not start or stop other medicines without talking to your healthcare provider.

Know the medicines you take. Keep a list of them and show it to your healthcare provider and pharmacist when you get a new medicine.

How should I take clorazepate dipotassium tablets?

  • Take clorazepate dipotassium tablets exactly as prescribed. Your healthcare provider will tell you how much clorazepate dipotassium tablets to take.
  • Your healthcare provider may change your dose. Do not change your dose of clorazepate dipotassium tablets without talking to your healthcare provider.
  • Do not stop taking clorazepate dipotassium tablets without first talking to your healthcare provider. Stopping clorazepate dipotassium tablets suddenly can cause serious problems.
  • If you take too much clorazepate dipotassium tablets, call your healthcare provider or local Poison Control Center right away.

What are the possible side effects of clorazepate dipotassium tablets?

See “What is the most important information I should know about clorazepate dipotassium tablets?”.

The most common side effects of clorazepate dipotassium tablets include:

  • drowsiness
  • dizziness
  • upset stomach
  • blurred vision
  • dry mouth
  • confusion

These are not all the possible side effects of clorazepate dipotassium tablets. For more information ask your healthcare provider or pharmacist.

Tell your healthcare provider if you have any side effect that bothers you or that does not go away.

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

How should I store clorazepate dipotassium tablets?

  • Store clorazepate dipotassium tablets between 20° to 25°C (68° to 77°F).
  • Keep clorazepate dipotassium tablets in a tightly closed container.
  • Keep clorazepate dipotassium tablets out of the light.
  • Keep clorazepate dipotassium tablets dry.
  • Keep clorazepate dipotassium tablets and all medicines away from children.

General Information about Clorazepate Dipotassium Tablets

Medicines are sometimes prescribed for purposes other than those listed in a Medication Guide. Do not use clorazepate dipotassium tablets for a condition for which it was not prescribed. Do not give clorazepate dipotassium tablets to other people, even if they have the same symptoms that you have. It may harm them.

This Medication Guide summarizes the most important information about clorazepate dipotassium tablets. If you would like more information, talk with your healthcare provider. You can ask your pharmacist or healthcare provider for information about clorazepate dipotassium tablets that is written for health professionals.

For more information about clorazepate dipotassium tablets, contact Mylan Pharmaceuticals Inc. toll free at 1-877-446-3679 (1-877-4-INFO-RX).

What are the ingredients in clorazepate dipotassium tablets, USP?

Active ingredient: clorazepate dipotassium, USP

Inactive ingredients: croscarmellose sodium, magnesium oxide, magnesium stearate, microcrystalline cellulose, potassium carbonate, sodium chloride, sodium lauryl sulfate and the following coloring agents:

3.75 mg - FD&C Blue No. 2 Aluminum Lake 7.5 mg - FD&C Yellow No. 6 Aluminum Lake

This Medication Guide has been approved by the U.S. Food and Drug Administration.

Precautions with Alcohol

  • Alcohol-Clorazepate interaction has not been established. Talk to your doctor about the effects of taking alcohol with this medication.

Brand Names

  • CLORAZEPATE DIPOTASSIUM ®[3]
  • Gen-Xene
  • Tranxene T-Tab
  • Tranxene-SD
  • Tranxene

Look-Alike Drug Names

There is limited information about the look alike drug names.

Drug Shortage Status

Price

References

The contents of this FDA label are provided by the National Library of Medicine.

  1. Feldman RG (1976). "Chlorazepate in temporal lobe epilepsy". JAMA. 236 (23): 2603. PMID 11357.
  2. Naidu S, Gruener G, Brazis P (1986). "Excellent results with clorazepate in recalcitrant childhood epilepsies". Pediatr Neurol. 2 (1): 18–22. PMID 2907857.
  3. "CLORAZEPATE DIPOTASSIUM- clorazepate dipotassium tablet".

{{#subobject:

 |Page Name=Clorazepate Dipotassium
 |Pill Name=Clorazepate_7.5 mg_NDC 0378-0040.jpg
 |Drug Name=Clorazepate Dipotassium 7.5 MG Oral Tablet
 |Pill Ingred=croscarmellose sodium, fd&c yellow no. 6, magnesium oxide, magnesium stearate, cellulose, microcrystalline, potassium carbonate, sodium chloride, sodium lauryl sulfate|+sep=;
 |Pill Imprint=M;40
 |Pill Dosage=7.5 mg
 |Pill Color=Orange|+sep=;
 |Pill Shape=Round
 |Pill Size (mm)=8.00
 |Pill Scoring=2
 |Pill Image=
 |Drug Author=Mylan Pharmaceuticals Inc.
 |NDC=0378-0040

}}

{{#subobject:

 |Label Page=Clorazepate Dipotassium
 |Label Name=Clorazepate_label_01.jpg

}}

{{#subobject:

 |Label Page=Clorazepate Dipotassium
 |Label Name=Clorazepate_panel_01.png

}}