Atenolol Chlorthalidone


Atenolol is one of the most commonly used beta blockers. Tenormin blocks selectively beta 1 receptors. Atenolol is used to reduce cardiovascular complications in post myocardial infarction patients. Tenormin decreases the heart rate, force of contraction and cardiac output. Atenolol has longer duration of actionand hence a dosage of once daily suffices. Atenolol causes less CNS side effects. The effective dosage for most individuals falls in a narrow range. Atenolol has lower propensity to cause bronchoconstriction. Tenormin is safe in diabetic patients, as it does not interfere with carbohydrate metabolism. Atenolol has no effect on lipid profile. You can now buy Atenolol here

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10 to 14 days express shipping – or 3 to 4 weeks for regular shipping. | Medshop4u Online Pharmacy.

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How does Atenolol / Generic of Tenormin work?

Atenolol decreases the total peripheral resistance and as a result the blood pressure falls. It reduces the noradrenaline release from the sympathetic terminals due to beta-receptor blockade. The beta-receptor inhibition can cause a decrease in rennin release from kidney.

Side effects of Atenolol / Generic of Tenormin

The common side effects reported with Tenormin are bradycardia, cold extremities, postural hypotension, leg pain, dizziness, vertigo, light headedness, tiredness, fatigue, lethargy, drowsiness, diarrhea, nausea and dyspepsia.

Guidelines before using Atenolol

The dosage should be adjusted in patients with severe renal impairment. Reserpine can potentiate postural hypotension in patients on Tenormin therapy. Atenolol and disopyramide should never be administered together as it can cause severe bradycardia and heart failure. Atenolol is safe in asthmatics. Tenormin should be used with caution along with clonidine as it can cause rebound hypertension. Atenolol is not safe for pregnant women, nursing mothers and in pediatric patients. Tenormin is contraindicated in sinus bradycardia, sick sinus syndrome and second or third degree heart block. The patient should be advised to avoid activities that require alertness while using Tenormin. The patient should be advised of cold hands and feet during Tenormin treatment due to reduced blood flow.

What are the common dosages of Tenormin?

The recommended starting dosage of Tenormin is 50mg once daily. The maximum dosage used is 100mg/day in adults. The dosage should be titrated slowly over a period of 1 to 2 weeks.

Additional Information


100mg/25mg, 50mg/12.5mg


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