Comparative Pharmacology
Head-to-head clinical analysis: ATENOLOL versus INDERIDE LA 120 50.
Peer-Reviewed Evidence
Head-to-head clinical analysis: ATENOLOL versus INDERIDE LA 120 50.
ATENOLOL vs INDERIDE LA 120/50
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Selective beta-1 adrenergic receptor antagonist; reduces heart rate, myocardial contractility, and blood pressure by blocking catecholamine effects.
Propranolol is a nonselective beta-adrenergic receptor antagonist that blocks beta-1 and beta-2 receptors, decreasing heart rate, myocardial contractility, and blood pressure. Hydrochlorothiazide is a thiazide diuretic that inhibits the Na+/Cl- symporter in the distal convoluted tubule, reducing sodium reabsorption and promoting diuresis.
50 mg orally once daily; may increase to 100 mg orally once daily if needed.
One capsule orally once daily, containing 120 mg propranolol HCl and 50 mg hydrochlorothiazide.
None Documented
None Documented
Clinical Note
moderateAtenolol + Digoxin
"Atenolol may increase the bradycardic activities of Digoxin."
Clinical Note
moderateAtenolol + Digitoxin
"Atenolol may increase the bradycardic activities of Digitoxin."
Clinical Note
moderateAtenolol + Deslanoside
"Atenolol may increase the bradycardic activities of Deslanoside."
Clinical Note
moderateAtenolol + Acetyldigitoxin
"Atenolol may increase the bradycardic activities of Acetyldigitoxin."
6-9 hours (terminal elimination half-life); may increase to 15-30 hours in renal impairment (CrCl <35 mL/min).
Propranolol: 3-6 hours; Hydrochlorothiazide: 6-15 hours. Note: Inderide LA is an extended-release formulation; effective half-life extended to approximately 8-12 hours for propranolol component.
Renal: 40-50% unchanged drug; minor hepatic metabolism (10-20%) with biliary excretion of metabolites; <5% fecal.
Primarily hepatic metabolism (90%+), with <5% excreted unchanged in urine. Biliary/fecal elimination accounts for negligible amounts.
Category C
Category C
Beta-Blocker
Beta-Blocker/Diuretic Combination