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Treatment of hypertension (high blood pressure), angina pectoris (chest pain), control of heart rate in certain tachyarrhythmias; may be used post-myocardial infarction as advised by physician

Atenolol is a selective beta-1 adrenergic blocker. It reduces heart rate and the force of contraction, lowering cardiac output and blood pressure. It also decreases myocardial oxygen demand, helping prevent angina.

Tablet for oral use. Take exactly as prescribed, usually once daily at the same time each day, with or without food. Do not stop suddenly without medical advice; if a dose is missed, take it when remembered unless it is close to the next dose.

Bradycardia (slow pulse), fatigue, dizziness, cold hands/feet, nausea, diarrhea, sleep disturbances, low blood pressure

Use with caution in asthma/COPD (may worsen bronchospasm), diabetes (can mask symptoms of hypoglycaemia), peripheral vascular disease, thyroid disorders, and in patients with slow heart rate, heart block, or heart failure unless stabilized. Do not stop abruptly (risk of rebound hypertension/angina). Dose adjustment may be needed in kidney impairment. Seek medical help for wheezing, severe dizziness/fainting, very slow pulse, or swelling/shortness of breath.

Other antihypertensives (additive hypotension), verapamil/diltiazem (risk of severe bradycardia/heart block), digoxin (bradycardia), amiodarone/antiarrhythmics (conduction disturbances), clonidine (rebound hypertension if stopped abruptly; taper carefully), insulin/oral antidiabetics (masks hypoglycaemia), NSAIDs like ibuprofen/diclofenac (may reduce BP-lowering effect), anaesthetic agents (enhanced hypotension/bradycardia)

Store below 25°C in a dry place, protected from light and moisture. Keep out of reach of children.

Tenormin 50 Tablet, Aten 50 Tablet, Atenolol 50 mg Tablet (generic), Betacard 50 Tablet, Atenova 50 Tablet