Overview: Propranolol is used for high blood pressure, chest pain, heart problems, and migraine prevention, among other uses. It works by slowing your heart rate and reducing how hard your heart. Propranolol is being investigated as a potential treatment for PTSD. [33][34][35] Propranolol works to inhibit the actions of norepinephrine (noradrenaline), a neurotransmitter that enhances memory consolidation. [citation needed] Propranolol hydrochloride tablets, USP are indicated as an adjunct to alpha-adrenergic blockade to control blood pressure and reduce symptoms of catecholamine-secreting tumors. Propranolol tablets are a beta-blocker that treats high blood pressure, tremors and atrial fibrillation. It can also prevent migraine headaches. Propranolol hydrochloride tablets are indicated to reduce cardiovascular mortality in patients who have survived the acute phase of myocardial infarction and are clinically stable. Propranolol is used alone or together with other medicines to treat high blood pressure (hypertension). High blood pressure adds to the workload of the heart and arteries. If it continues for a long time, the heart and arteries may not function properly. Propranolol is a beta-blocker used to treat high blood pressure, irregular heartbeats, shaking (tremors), and other conditions. It is used after a heart attack to improve the chance of survival. It is also used to prevent migraine headaches and chest pain (angina). Propranolol reference guide for safe and effective use from the American Society of Health-System Pharmacists (AHFS DI). propranolol hydrochloride dosing, contraindications, interactions, side effects, adverse reactions, and pill pictures. Propranolol is a prescription nonselective beta-blocker used to treat high blood pressure (hypertension), angina (chest pain), irregular heart rhythms, tremors, and to reduce the risk of complications after a heart attack.