Note: This document contains side effect information about mecamylamine. Some dosage forms listed on this page may not apply to the brand name Vecamyl.
Applies to mecamylamine: oral tablet.
Warning
Follow all directions on your medicine label and package. Tell each of your healthcare providers about all your medical conditions, allergies, and all medicines you use.
Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have:
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tremors or jerky muscle movements;
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numbness, tingling, burning pain;
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painful or difficult urination;
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ongoing diarrhea with stomach bloating;
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confusion, thinking problems;
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a light-headed feeling, like you might pass out;
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a seizure; or
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dry cough, wheezing, feeling short of breath (even while lying down).
Common side effects may include:
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dizziness or fainting;
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nausea, vomiting, loss of appetite;
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constipation;
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dry mouth, swollen tongue;
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feeling weak or tired;
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blurred vision; or
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impotence, decreased interest in sex.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.
For Healthcare Professionals
Applies to mecamylamine: oral tablet.
Nervous system
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]
