Brand name(s)

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

What it is

Verapamil is a calcium channel blocker. It works by relaxing the muscles of your heart and blood vessels.

What it treats

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.