Definition

A drug that contains the active ingredient propranolol hydrochloride and is used to treat high blood pressure, including before surgery in patients with pheochromocytoma, and many other conditions. It is also being studied in the treatment of other conditions and some types of cancer. Inderal blocks certain receptors on nerve cells and causes blood vessels to relax and widen. This improves blood flow and lowers blood pressure and heart rate. Inderal is a type of beta blocker.