Verapamil (oral/injection)

Generic name: verapamil (oral/injection) [ ver-AP-a-mil ]
Brand names: Calan, Isoptin SR, Verelan, Isoptin, Calan SR, ... show all 8 brands Isoptin I.V., Covera-HS, Verelan PM
Dosage forms: intravenous solution (2.5 mg/mL); oral capsule, extended release (100 mg/24 hours; 120 mg/24 hours; 180 mg/24 hours; 200 mg/24 hours; 240 mg/24 hours; 300 mg/24 hours; 360 mg/24 hours); oral tablet (120 mg; 40 mg; 80 mg); oral tablet, extended release (120 mg/12 hours; 180 mg/12 hours; 240 mg/12 hours)
Drug classes:Calcium channel blocking agents, Group IV antiarrhythmics

Medically reviewed by Drugs.com on Nov 8, 2021. Written by Cerner Multum.

What is verapamil?

Verapamil is used to treat hypertension (high blood pressure), angina (chest pain), and certain heart rhythm disorders.

Verapamil injection is used to rapidly or temporarily restore normal heartbeats in people with certain heart rhythm disorders.

Verapamil may also be used for purposes not listed in this medication guide.

Warnings

You should not use verapamil if you have a serious heart condition such as "sick sinus syndrome" or "AV block" (unless you have a pacemaker), or Wolff-Parkinson-White, Lown-Ganong-Levine syndrome.

Before taking this medicine

You should not use verapamil if you are allergic to it, or if you have:

• "sick sinus syndrome" or "AV block" (unless you have a pacemaker);

• very