Atenolol, Chlorthalidone

Indications

Atenolol, Chlorthalidone is used for: ATENOLOL
For the management of hypertention and long-term management of patients with angina pectoris
CHLORTHALIDONE
For management of hypertension either as the sole therapeutic agent or to enhance the effect of other antihypertensive drugs in the more severe forms of hypertension

Adult Dose

Child Dose

Renal Dose

Administration

Contra Indications

Precautions

Pregnancy-Lactation

Interactions

Adverse Effects

Side effects of Atenolol, Chlorthalidone :

Mechanism of Action

ATENOLOL
Like metoprolol, atenolol competes with sympathomimetic neurotransmitters such as catecholamines for binding at beta(1)-adrenergic receptors in the heart and vascular smooth muscle, inhibiting sympathetic stimulation. This results in a reduction in resting heart rate, cardiac output, systolic and diastolic blood pressure, and reflex orthostatic hypotension. Higher doses of atenolol also competitively block beta(2)-adrenergic responses in the bronchial and vascular smooth muscles
CHLORTHALIDONE
Chlorthalidone inhibits sodium ion transport across the renal tubular epithelium in the cortical diluting segment of the ascending limb of the loop of henle. By increasing the delivery of sodium to the distal renal tubule, chlorthalidone indirectly increases potassium excretion via the sodium-potassium exchange mechanism