Propranolol belongs to a group of medicines called beta-blockers.
It is used to: Treat high blood pressure, an enlarged heart muscle or tremors; treat angina pectoris (pain in the chest caused by blockages in the arteries leading to the heart) or high blood pressure caused by a tumour near a kidney (phaeochromocytoma); help prevent additional heart attacks; control irregular or fast heartbeats; control fast heart rate and other symptoms caused by an overactive thyroid gland; reduce migraine attacks; calm people who are anxious or worried; prevent stomach bleeding in patients with high blood pressure in their liver or swollen blood vessels in their gullet.