Lotensin tablet
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Amr Marawan, M.D. [2]; Ahmed Zaghw, M.D. [3]
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Black Box Warning
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WARNING See full prescribing information for complete boxed warning. Condition Name: (Content) |
Overview
Lotensin tablet is a _______ drug that is FDA approved for the treatment of _______. There is a Black Box Warning for this drug as shown here. Common adverse reactions include _______.
Adult Indications and Dosage
FDA-Labeled Indications and Dosage (Adult)
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Condition 2
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Off-Label Use and Dosage (Adult)
Guideline-Supported Use
Condition 1
- Developed by: (Organisation)
- Class of Recommendation: (Class) (Link)
- Strength of Evidence: (Category A/B/C) (Link)
- Dosing Information
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Condition 2
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Non–Guideline-Supported Use
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Pediatric Indications and Dosage
FDA-Labeled Indications and Dosage (Pediatric)
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Condition 2
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Off-Label Use and Dosage (Pediatric)
Guideline-Supported Use
Condition 1
- Developed by: (Organisation)
- Class of Recommendation: (Class) (Link)
- Strength of Evidence: (Category A/B/C) (Link)
- Dosing Information
- (Dosage)
Condition 2
- Developed by: (Organisation)
- Class of Recommendation: (Class) (Link)
- Strength of Evidence: (Category A/B/C) (Link)
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Non–Guideline-Supported Use
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Contraindications
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- Condition 5
Warnings
Conidition 1
(Description)
Conidition 2
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Conidition 3
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Adverse Reactions
Clinical Trials Experience
Condition 1
Central Nervous System
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Cardiovascular
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Respiratory
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Gastrointestinal
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Hypersensitive Reactions
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Miscellaneous
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Condition 1
Central Nervous System
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Cardiovascular
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Respiratory
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Gastrointestinal
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Hypersensitive Reactions
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Miscellaneous
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Postmarketing Experience
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Drug Interactions
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Drug 4
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Drug 5
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Use in Specific Populations
Pregnancy
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Labor and Delivery
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Nursing Mothers
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Pediatric Use
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Geriatric Use
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Gender
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Race
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Renal Impairment
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Hepatic Impairment
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Females of Reproductive Potential and Males
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Immunocompromised Patients
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Administration and Monitoring
Administration
(Oral/Intravenous/etc)
Monitoring
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(Description regarding monitoring, from Warnings section)
Condition 2
(Description regarding monitoring, from Warnings section)
Condition 3
(Description regarding monitoring, from Warnings section)
IV Compatibility
Solution
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Not Tested
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Variable
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Incompatible
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Y-Site
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Variable
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Incompatible
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Admixture
Compatible
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Not Tested
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Variable
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Incompatible
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Syringe
Compatible
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Not Tested
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Variable
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Incompatible
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TPN/TNA
Compatible
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Not Tested
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Variable
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Incompatible
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Overdosage
Acute Overdose
Signs and Symptoms
(Description)
Management
(Description)
Chronic Overdose
Signs and Symptoms
(Description)
Management
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Pharmacology
Lotensin tablet
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Mechanism of Action
Benazepril and benazeprilat inhibit angiotensin-converting enzyme (ACE) in human subjects and animals. ACE is a peptidyl dipeptidase that catalyzes the conversion of angiotensin I to the vasoconstrictor substance, angiotensin II. Angiotensin II also stimulates aldosterone secretion by the adrenal cortex.
Inhibition of ACE results in decreased plasma angiotensin II, which leads to decreased vasopressor activity and to decreased aldosterone secretion. The latter decrease may result in a small increase of serum potassium. Hypertensive patients treated with Lotensin alone for up to 52 weeks had elevations of serum potassium of up to 0.2 mEq/L. Similar patients treated with Lotensin and hydrochlorothiazide for up to 24 weeks had no consistent changes in their serum potassium (see PRECAUTIONS).
Removal of angiotensin II negative feedback on renin secretion leads to increased plasma renin activity. In animal studies, benazepril had no inhibitory effect on the vasopressor response to angiotensin II and did not interfere with the hemodynamic effects of the autonomic neurotransmitters acetylcholine, epinephrine, and norepinephrine. ACE is identical to kininase, an enzyme that degrades bradykinin. Whether increased levels of bradykinin, a potent vasodepressor peptide, play a role in the therapeutic effects of Lotensin remains to be elucidated.
While the mechanism through which benazepril lowers blood pressure is believed to be primarily suppression of the renin-angiotensin-aldosterone system, benazepril has an antihypertensive effect even in patients with low-renin hypertension (see INDICATIONS AND USAGE).
Structure
(Description with picture)
Pharmacodynamics
Single and multiple doses of 10 mg or more of Lotensin cause inhibition of plasma ACE activity by at least 80%-90% for at least 24 hours after dosing. Pressor responses to exogenous angiotensin I were inhibited by 60%-90% (up to 4 hours post-dose) at the 10-mg dose.
Pharmacokinetics
Following oral administration of Lotensin, peak plasma concentrations of benazepril are reached within 0.5-1.0 hours. The extent of absorption is at least 37% as determined by urinary recovery and is not significantly influenced by the presence of food in the GI tract.
Cleavage of the ester group (primarily in the liver) converts benazepril to its active metabolite, benazeprilat. Peak plasma concentrations of benazeprilat are reached 1-2 hours after drug intake in the fasting state and 2-4 hours after drug intake in the nonfasting state. The serum protein binding of benazepril is about 96.7% and that of benazeprilat about 95.3%, as measured by equilibrium dialysis; on the basis of in vitro studies, the degree of protein binding should be unaffected by age, hepatic dysfunction, or concentration (over the concentration range of 0.24-23.6 µmol/L).
Benazepril is almost completely metabolized to benazeprilat, which has much greater ACE inhibitory activity than benazepril, and to the glucuronide conjugates of benazepril and benazeprilat. Only trace amounts of an administered dose of Lotensin can be recovered in the urine as unchanged benazepril, while about 20% of the dose is excreted as benazeprilat, 4% as benazepril glucuronide, and 8% as benazeprilat glucuronide.
The kinetics of benazepril are approximately dose-proportional within the dosage range of 10-80 mg.
In adults, the effective half-life of accumulation of benazeprilat following multiple dosing of benazepril hydrochloride is 10-11 hours. Thus, steady-state concentrations of benazeprilat should be reached after 2 or 3 doses of benazepril hydrochloride given once daily.
The kinetics did not change, and there was no significant accumulation during chronic administration (28 days) of once-daily doses between 5 mg and 20 mg. Accumulation ratios based on AUC and urinary recovery of benazeprilat were 1.19 and 1.27, respectively.
Benazepril and benazeprilat are cleared predominantly by renal excretion in healthy subjects with normal renal function. Nonrenal (i.e., biliary) excretion accounts for approximately 11%-12% of benazeprilat excretion in healthy subjects. In patients with renal failure, biliary clearance may compensate to an extent for deficient renal clearance.
In patients with renal insufficiency, the disposition of benazepril and benazeprilat in patients with mild-to-moderate renal insufficiency (creatinine clearance >30 mL/min) is similar to that in patients with normal renal function. In patients with creatinine clearance ≤30 mL/min, peak benazeprilat levels and the initial (alpha phase) half-life increase, and time to steady state may be delayed (see DOSAGE AND ADMINISTRATION).
When dialysis was started 2 hours after ingestion of 10 mg of benazepril, approximately 6% of benazeprilat was removed in 4 hours of dialysis. The parent compound, benazepril, was not detected in the dialysate.
In patients with hepatic insufficiency (due to cirrhosis), the pharmacokinetics of benazeprilat are essentially unaltered. The pharmacokinetics of benazepril and benazeprilat do not appear to be influenced by age.
In pediatric patients, (N=45) hypertensive, age 6 to 16 years, given multiple daily doses of Lotensin (0.1 to 0.5 mg/kg), the clearance of benazeprilat for children 6 to 12 years old was 0.35 L/hr/kg, more than twice that of healthy adults receiving a single dose of 10 mg (0.13 L/hr/kg). In adolescents, it was 0.17 L/hr/kg, 27% higher than that of healthy adults. The terminal elimination half-life of benazeprilat in pediatric patients was around 5 hours, one-third that observed in adults.
Nonclinical Toxicology
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Clinical Studies
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How Supplied
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- National Drug Code (NDC):
- Storage:
- Manufactured by:
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Images
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Patient Information
Patient Information from FDA
(Patient Counseling Information)
Patient Information from NLM
(Link to patient information page)
Precautions with Alcohol
Alcohol-Lotensin tablet interaction has not been established. Talk to your doctor about the effects of taking alcohol with this medication.
Look-Alike Drug Names
- (Paired Confused Name 1a) — (Paired Confused Name 1b)
- (Paired Confused Name 2a) — (Paired Confused Name 2b)
- (Paired Confused Name 3a) — (Paired Confused Name 3b)