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Monotherapy with labetalol compared with propranolol. Differential effects by race
Journal of Clinical Hypertension
|March 1, 1985
Summary
Labetalol effectively treats hypertension in both black and white patients. Propranolol is more effective in white patients and less effective in black patients, who may require additional diuretics.
Area of Science:
- Cardiology
- Pharmacology
- Clinical Trials
Background:
- Hypertension management requires evaluating drug efficacy across diverse populations.
- Labetalol and propranolol are common antihypertensive agents with potentially different racial efficacies.
Purpose of the Study:
- To compare the antihypertensive effects of labetalol and propranolol in black and white patients.
- To determine if race influences the efficacy of these two drugs in managing mild to moderate hypertension.
Main Methods:
- A double-blind, multicenter trial involving 140 patients with mild to moderate hypertension.
- Patients received either labetalol or propranolol, with dosage titration and optional hydrochlorothiazide addition.
- Blood pressure and heart rate were monitored throughout the study, with analysis stratified by race.
Main Results:
- Labetalol demonstrated equal effectiveness in both black and white patients.
- Propranolol was significantly more effective in white patients than in black patients.
- Labetalol was more effective than propranolol in lowering blood pressure in black patients, who also required diuretics more frequently with propranolol.
Conclusions:
- Labetalol is a reliable antihypertensive choice for both black and white individuals.
- Propranolol's efficacy in hypertension is race-dependent, showing greater benefit in white patients.
- Treatment guidelines for hypertension should consider racial differences in drug response, particularly for agents like propranolol.