title: Assessment of a fixed-dosage combination of atenolol and chlorthalidone (Tenoretic) in hypertensive Nigerians.
abstract: The antihypertensive effect of a fixed dosage combination of the cardioselective beta-adrenoceptor blocker, atenolol, and the oral thiazide-like diuretic, chlorthalidone (Tenoretic) was studied in 24 hypertensive Nigerians in a double-blind, cross-over comparison with three other treatments. These were atenolol alone, 100 mg daily, chlorthalidone alone, 25 mg daily, and atenolol (100 mg) plus chlorthalidone (25 mg) daily taken as separate formulations. Tenoretic was taken as a once-daily tablet containing 100 mg atenolol plus 25 mg chlorthalidone. The order of administration of the drugs was randomized. Each drug was taken for 4 weeks. The results showed that atenolol and chlorthalidone lowered blood pressure to the same extent. Combination of the two drugs whether taken separately or in fixed-dosage combination was better than either product singly. The drugs were well tolerated.
authors.affiliation: Department of Pharmacology and Therapeutics, University of Ibadan College of Medicine, Nigeria.
authors.forename: L A
authors.initials: LA
authors.lastname: Salako
authors.forename: A O
authors.initials: AO
authors.lastname: Falase
authors.forename: A F
authors.initials: AF
authors.lastname: Aderounmu
authors.forename: O
authors.initials: O
authors.lastname: Walker
mesh_terms: D000328:Adult; D000368:Aged; D000959:Antihypertensive Agents / Q000008:administration & dosage / Q000494:pharmacology / Q000627:therapeutic use*; D001262:Atenolol / Q000008:administration & dosage / Q000494:pharmacology / Q000627:therapeutic use*; D001794:Blood Pressure / Q000187:drug effects; D002752:Chlorthalidone / Q000008:administration & dosage / Q000494:pharmacology / Q000627:therapeutic use*; D004311:Double-Blind Method; D004338:Drug Combinations / Q000008:administration & dosage / Q000494:pharmacology / Q000627:therapeutic use; D005260:Female; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D008297:Male; D008875:Middle Aged; D009549:Nigeria; D016032:Randomized Controlled Trials as Topic
chemical_list: D000959:Antihypertensive Agents; D004338:Drug Combinations; C035884:atenolol, chlortalidone drug combinations; D001262:Atenolol; D002752:Chlorthalidone