Mecamylamine Side Effects

Applies to mecamylamine: oral tablet.

Serious side effects of mecamylamine

Along with its needed effects, mecamylamine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur while taking mecamylamine:

More common side effects

• dizziness or lightheadedness, especially when getting up suddenly from a lying or sitting position

Less common side effects

• difficult urination

Rare side effects

• bloating and frequent loose stools
• confusion or excitement
• constipation (severe)
• convulsions (seizures)
• mental depression
• shortness of breath
• trembling
• uncontrolled movements of the face, hands, arms, or legs

Other side effects of mecamylamine

Some side effects of mecamylamine may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.

Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common side effects

• constipation
• drowsiness
• unusual tiredness

Less common or rare side effects

• blurred vision
• decreased sexual ability or interest in sex
• dryness of the mouth
• enlarged pupils
• loss of appetite
• nausea and vomiting
• weakness

For healthcare professionals

Applies to mecamylamine: oral tablet.

Nervous system adverse events

• Frequency not reported: Orthostatic dizziness and syncope, convulsions, choreiform movements, mental aberrations, tremor, paresthesias, sedation^[Ref]

Gastrointestinal

• Frequency not reported: Ileus, constipation, vomiting, nausea, glossitis, dry mouth^[Ref]

Genitourinary

• Frequency not reported: Urinary retention, impotence^[Ref]

Ocular

• Frequency not reported: Blurred vision, dilated pupils^[Ref]

Other

• Frequency not reported: Weakness, fatigue^[Ref]

Respiratory

• Frequency not reported: Interstitial pulmonary edema and fibrosis^[Ref]

Cardiovascular

• Frequency not reported: Postural hypotension^[Ref]

Metabolic

• Frequency not reported: Anorexia^[Ref]

Psychiatric

• Frequency not reported: Decreased libido^[Ref]

Further information

Mecamylamine side effects can vary depending on the individual. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.

Medical Disclaimer