What is Inderal or Propranolol? Propranolol or Inderal acts as an agent that blocks beta-adrenergic and helps in curing high blood pressure, angina (chest discomfort), irregular cardiac rhythms, and other neurologic diseases. Propranolol hydrochloride is known as the active ingredient in Propranolol. You can buy Inderal online which is available in a tablet and liquid form and...