Verapamil Overview, Dosage, How to Take, Side Effects and Warnings

Verapamil is used with or without other medications to treat high blood pressure. Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. Verapamil is called a calcium channel blocker. It works by relaxing blood vessels so blood can flow more easily. Verapamil is also used to prevent chest pain (angina). It may help to increase your ability to exercise and decrease how often you may get angina attacks. Verapamil is also used to control your heart rate if you have a fast/irregular heartbeat.

Verapamil dosage.

  • For angina: Immediate release formulations: Initially 80-120 milligrams (mg), three to four times a day. It can be increased up to 480 mg per day, in divided doses. Extended-release formulations: Initially 180 mg once daily at bedtime. It can be increased up to – 540 mg at bedtime
  • For hypertension: Immediate release formulations: Initially 80 mg three times a day. It can be increased up to 480 mg per day, given in divided doses, although doses greater than 360 mg offer no additional benefit. Extended-release formulations: Initially 180-240 mg once daily. It can be increased to 240 mg, twice daily
  • For migraine: Immediate release formulations: Initially 80 mg three times daily. Higher doses have also been used