Mecamylamine: Difference between revisions

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There is limited information regarding <i>Off-Label Non–Guideline-Supported Use</i> of {{PAGENAME}} in pediatric patients.

Revision as of 01:42, 5 July 2014

Mecamylamine
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: Gerald Chi

Disclaimer

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Overview

Mecamylamine is a autonomic ganglionic blocker that is FDA approved for the {{{indicationType}}} of moderately severe to severe essential hypertension and uncomplicated cases of malignant hypertension. Common adverse reactions include orthostatic hypotension, dizziness, lightheadedness, and fainting.

Adult Indications and Dosage

FDA-Labeled Indications and Dosage (Adult)

Essential Hypertension and Malignant Hypertension
  • Therapy is usually started with one 2.5 mg tablet of Mecamylamine HCl twice a day. This initial dosage should be modified by increments of one 2.5 mg tablet at intervals of not less than 2 days until the desired blood pressure response occurs (the criterion being a dosage just under that which causes signs of mild postural hypotension).
  • Administration of Mecamylamine HCl after meals may cause a more gradual absorption and smoother control of excessively high blood pressure. The timing of doses in relation to meals should be consistent. Since the blood pressure response to antihypertensive drugs is increased in the early morning, the larger dose should be given at noontime and perhaps in the evening. The morning dose, as a rule, should be relatively small and in some instances may even be omitted.
  • The initial regulation of dosage should be determined by blood pressure readings in the erect position at the time of maximal effect of the drug, as well as by other signs and symptoms of orthostatic hypotension.
  • The effective maintenance dosage should be regulated by blood pressure readings in the erect position and by limitation of dosage to that which causes slight faintness or dizziness in this position. If the patient or a relative can use a sphygmomanometer, instructions may be given to reduce or omit a dose if readings fall below a designated level or if faintness or lightheadedness occurs. However, no change should be instituted without the knowledge of the physician.
  • Close supervision and education of the patient, as well as critical adjustment of dosage, are essential to successful therapy.
  • Other Antihypertensive Agents
  • When Mecamylamine HCl is given with other antihypertensive drugs, the dosage of these other agents, as well as that of Mecamylamine HCl, should be reduced to avoid excessive hypotension. However, thiazides should be continued in their usual dosage, while that of Mecamylamine HCl is decreased by at least 50 percent.
  • Dosing Information
  • The average total daily dosage of Mecamylamine HCl is 25 mg, usually in three divided doses.
  • However, as little as 2.5 mg daily may be sufficient to control hypertension in some patients. A range of two to four or even more doses may be required in severe cases when smooth control is difficult to obtain. In severe or urgent cases, larger increments at smaller intervals may be needed. Partial tolerance may develop in certain patients, requiring an increase in the daily dosage of Mecamylamine HCl.

Off-Label Use and Dosage (Adult)

Guideline-Supported Use

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

Non–Guideline-Supported Use

There is limited information regarding Off-Label Non–Guideline-Supported Use of Mecamylamine in adult patients.

Pediatric Indications and Dosage

FDA-Labeled Indications and Dosage (Pediatric)

  • Safety and effectiveness in pediatric patients have not been established.

Off-Label Use and Dosage (Pediatric)

Guideline-Supported Use

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

Non–Guideline-Supported Use

There is limited information regarding Off-Label Non–Guideline-Supported Use of Mecamylamine in pediatric patients.

Contraindications

  • Condition1

Warnings

  • Description

Precautions

  • Description

Adverse Reactions

Clinical Trials Experience

There is limited information regarding Clinical Trial Experience of Mecamylamine in the drug label.

Central Nervous System
Cardiovascular
Respiratory
Gastrointestinal
Hypersensitivity
Miscellaneous

Postmarketing Experience

There is limited information regarding Postmarketing Experience of Mecamylamine in the drug label.

Central Nervous System
Cardiovascular
Respiratory
Gastrointestinal
Hypersensitivity
Miscellaneous

Drug Interactions

  • Drug
  • Description

Use in Specific Populations

Pregnancy

Pregnancy Category (FDA):

  • Pregnancy Category


Pregnancy Category (AUS):

  • Australian Drug Evaluation Committee (ADEC) Pregnancy Category

There is no Australian Drug Evaluation Committee (ADEC) guidance on usage of Mecamylamine in women who are pregnant.

Labor and Delivery

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

Nursing Mothers

There is no FDA guidance on the use of Mecamylamine with respect to nursing mothers.

Pediatric Use

There is no FDA guidance on the use of Mecamylamine with respect to pediatric patients.

Geriatic Use

There is no FDA guidance on the use of Mecamylamine with respect to geriatric patients.

Gender

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

Race

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

Renal Impairment

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

Hepatic Impairment

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

Females of Reproductive Potential and Males

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

Immunocompromised Patients

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

Administration and Monitoring

Administration

  • Oral
  • Intravenous

Monitoring

There is limited information regarding Monitoring of Mecamylamine in the drug label.

Condition1
  • Description

IV Compatibility

There is limited information regarding IV Compatibility of Mecamylamine in the drug label.

Overdosage

Acute Overdose

Signs and Symptoms

  • Description

Management

  • Description

Chronic Overdose

There is limited information regarding Chronic Overdose of Mecamylamine in the drug label.

Pharmacology

Template:Px
Mecamylamine
Systematic (IUPAC) name
(1S,2R,4R)-N,2,3,3-tetramethylbicyclo[2.2.1]heptan-2-amine
Identifiers
CAS number 60-40-2
ATC code C02BB01
PubChem 4032
DrugBank DB00657
Chemical data
Formula Template:OrganicBox atomTemplate:OrganicBox atomTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBox atomTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBox 
Mol. mass 167.291 g/mol
SMILES eMolecules & PubChem
Pharmacokinetic data
Bioavailability ?
Protein binding 40%
Metabolism ?
Half life ?
Excretion ?
Therapeutic considerations
Pregnancy cat.

?

Legal status

Template:Unicode Prescription only

Routes Oral

Mechanism of Action

Structure

This image is provided by the National Library of Medicine.

Pharmacodynamics

There is limited information regarding Pharmacodynamics of Mecamylamine in the drug label.

Pharmacokinetics

There is limited information regarding Pharmacokinetics of Mecamylamine in the drug label.

Nonclinical Toxicology

There is limited information regarding Nonclinical Toxicology of Mecamylamine in the drug label.

Clinical Studies

There is limited information regarding Clinical Studies of Mecamylamine in the drug label.

Condition1
  • Description

How Supplied

  • Vecamyl [Mecamylamine HCl Tablet USP] are slightly yellow, round, compressed tablets, coded MP on one side and 2.5 on the other side. They are supplied as follows:
NDC 0722-7183-01 in bottles of 100.
  • Storage
Store at 25°C (77°F); excursions permitted to 15-30°C (59-86°F)

Storage

There is limited information regarding Mecamylamine Storage in the drug label.

Images

Drug Images

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Package and Label Display Panel

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

Patient Counseling Information

  • Mecamylamine HCl may cause dizziness, lightheadedness, or fainting, especially when rising from a lying or sitting position. This effect may be increased by alcoholic beverages, exercise, or during hot weather. Getting up slowly may help alleviate such a reaction.

Precautions with Alcohol

  • The action of Mecamylamine may be potentiated by alcohol.
  • Mecamylamine may cause dizziness, lightheadedness, or fainting, especially when rising from a lying or sitting position. This effect may be increased by alcoholic beverages.

Brand Names

Look-Alike Drug Names

Drug Shortage Status

Price

References

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

  1. "VECAMYL (mecamylamine hydrochloride) tablet".
  2. "http://www.ismp.org". External link in |title= (help)


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