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Verapamil Side Effects

Bipolar Medications Library

By , About.com Guide

Updated June 19, 2006

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Catalogue of side effects for the medication Verapamil - sold under multiple brand names including Calan, Verelan, Isoptin and Covera-HS - a calcium channel blocker which may be used to a minor degree in controlling mania in the management of bipolar disorder.

Note: The other medications mentioned below are related to Verapamil

Less Common Side Effects:

Check with your doctor if any of the following side effects continue or are bothersome:

Constipation; diarrhea; dizziness or lightheadedness (more common with bepridil and nifedipine); flushing and feeling of warmth (more common with nicardipine and nifedipine); headache (more common with felodipine, isradipine, and nifedipine); nausea (more common with bepridil and nifedipine); unusual tiredness or weakness

Always Notify Doctor:

Less Common: Breathing difficulty, coughing, or wheezing; irregular or fast, pounding heartbeat; skin rash; slow heartbeat (less than 50 beats per minute - bepridil, diltiazem, and verapamil only); swelling of ankles, feet, or lower legs (more common with felodipine and nifedipine)

Rare: Bleeding, tender, or swollen gums; chest pain (may appear about 30 minutes after medicine is taken); fainting; unusual secretion of milk

Other side effects not listed above may also occur in some patients. If you notice any other effects, check with your doctor.

Further Reading

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