Verapamil is a calcium channel blocker. It blocks the action of calcium on the heart and blood vessels, thereby widening the blood vessels and allowing more blood and oxygen to reach the heart. This reduces blood pressure and decreases the chances of angina (chest pain).
It may cause dizziness or sleepiness. Do not drive or do anything requiring concentration until you know how it affects you.
It may cause you to feel lightheaded or weak especially when you stand up (orthostatic hypotension). Rise slowly if you have been sitting or lying down.
It is best to avoid drinking alcohol while taking Verapamil as it may make the side effects worse.
Do not stop taking it suddenly without talking to your doctor first.
Reviewed By Dr. Ashish Ranjan