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Side effect(s) of Verapamil


Review the side-effects of Verapamil as documented in medical literature. The term "side effects" refers to unintended effects that can occur as a result of taking the medication. In majority of the instances these side-effects are mild and easily tolerable, however sometimes they can be more severe and can be detrimental.

If the side effects are not tolerable adjusting the dosage or switching to a different medication can help to manage or overcome side effects. If you have any doubts or questions, we recommend seeking advice from your doctor or pharmacist.

   Most Common
- Constipation, headache, upper respiratory infection, dizziness, fatigue, swelling in the extremities, nausea, elevated liver enzymes, slow heart rate, tingling, flushing and low blood pressure.

   Heart
- Chest pain, heart failure, lung swelling, heart attack, palpitations, bruising and fainting.

   Gastrointestinal
- Diarrhea, dry mouth, gastrointestinal distress and gum swelling.

   Blood
- Bruising.

   Central Nervous system
- Stroke, confusion, sleeplessness, muscle cramps, shakiness and drowsiness.

   Musculoskeletal
- Joint pain.

   Skin
- Rash, exanthema, hair loss, increased sweating, hives and redness of the skin.

   Eye
- Blurred vision and ringing in the ear.

   Genitourinary
- Increased urination, spotty menstruation, impotence and breast enlargement in male.

   Miscellaneous
- Allergy aggravation and difficulty in breathing.

Other Precautions :

Avoid excess dosage.

Drug Name : Verapamil

Verapamil(Calan) generic is a calcium channel blocker, prescribed for high blood pressure, chest pain, abnormal heart rhythm, and headache. It works by relaxing the blood vessels.


Trade Names for Verapamil

India :


International :


Calan, Calan SR, Covera-HS, Isoptin SR, Verelan, Verelan PM, Isoptin, Isoptin I.V.
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