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Atenolol is a prescription beta1-selective adrenergic blocker used for hypertension, long-term management of angina from coronary atherosclerosis, and management of hemodynamically stable patients with definite or suspected acute myocardial infarction. Oral tablets come in 25 mg, 50 mg, and 100 mg strengths. Kidney function influences dosing since atenolol is cleared mainly through the kidneys.
read more about atenolol ...Atenolol blocks beta1-adrenergic receptors, reducing sympathetic stimulation of the heart. This lowers heart rate, cardiac output, and the heart's demand for oxygen. Atenolol is relatively selective for beta1 receptors at lower doses, though that selectivity decreases as the dose rises.
Atenolol is approved for high blood pressure and long-term management of angina linked to coronary atherosclerosis. It is also used in hemodynamically stable patients with definite or suspected acute myocardial infarction to reduce cardiovascular mortality. Treatment choice and dose depend on the indication, heart rate, blood pressure, kidney function, and other medical conditions.
For hypertension, the usual starting dose is 50 mg once daily, with an increase to 100 mg once daily when needed. Angina treatment also starts at 50 mg once daily and can increase to 100 mg, with selected patients receiving 200 mg daily. Reduced kidney function requires lower maximum daily doses.
Atenolol can cause slow heart rate, low blood pressure, heart block, fatigue, dizziness, and worsening heart failure in susceptible patients. Abrupt discontinuation can worsen angina or trigger myocardial infarction in people with coronary artery disease. Atenolol is contraindicated in sinus bradycardia, advanced heart block, cardiogenic shock, and overt cardiac failure.
Yes. Atenolol is a beta1-selective adrenergic blocker that reduces sympathetic stimulation of the heart.
Yes. Atenolol is approved for hypertension and is commonly taken once daily.
No. Abrupt discontinuation can worsen angina or trigger serious cardiac events in people with coronary artery disease.
Yes. Reduced kidney function slows atenolol clearance and can require a lower maximum daily dose.
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