Drug Index



Mechanism :

Atenolol is a cardioselective beta-adrenergic receptor blocking agent without membrane stabilizing or intrinsic sympathomimetic activities.

Indication :

• Hypertension

Contraindications :

Atenolol is contraindicated in sinus bradycardia, heart block greater than first degree, cardiogenic shock, and overt cardiac failure. It should be avoided in asthmatics.

Dosing :

0.5 to 1 mg/kg/day orally; maximum daily dose: 2 mg/kg/day or 100 mg/day.

Adverse Effect :

Tiredness, bradycardia, postural hypotension, precipitation of heart block, intermittent claudication, Raynaud’s phenomena, depression, dizziness, confusion, mood changes, nightmares, hallucinations, paresthesia, vertigo, bronchospasm, hypoglycaemia, purpura, thrombocytopenia.

Interaction :

Calcium channel blockers: Additive effect.
Prostaglandin synthase inhibiting drugs: Decrease the hypotensive effects of beta blockers.
Catecholamine-depleting drugs such as reserpine: Hypotension, marked bradycardia, vertigo, syncopal attacks, or orthostatic hypotension.
Haloperidol: Hypotension and cardiac arrest.
Theophylline: Clearance is reduced.
Cimetidine: Increasing blood levels.

03/11/2020 00:53:52 Atenolol
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