Labetalol in essential hypertension.

Area of Science:

• Pharmacology
• Cardiovascular Medicine

Background:

• Essential hypertension is a widespread condition requiring effective management.
• Adrenoreceptor-blocking drugs play a role in antihypertensive therapy.

Purpose of the Study:

• To evaluate the efficacy and tolerability of labetalol in patients with essential hypertension.

Main Methods:

• A 16-week trial involving 30 patients with essential hypertension.
• Administration of labetalol at varying doses (300-1200 mg).
• Monitoring of blood pressure, peripheral renin activity, and side effects.

Main Results:

• Labetalol reduced blood pressure in 15 patients.
• Higher doses did not always sustain blood pressure reduction.
• Peripheral renin activity remained unchanged.
• 18 patients reported side effects, with only one withdrawal.

Conclusions:

• Labetalol demonstrated effectiveness as an antihypertensive agent in a subset of patients.
• The drug was generally well-tolerated despite a high incidence of reported side effects.