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Experience with labetalol in hypertension
British Journal of Clinical Pharmacology
|August 1, 1976
Summary
Labetalol effectively lowers blood pressure in patients with hypertension, even when combined with diuretics. While some experienced postural hypotension, side effects were generally mild and infrequent.
Area of Science:
- Pharmacology
- Cardiovascular Medicine
Background:
- Hypertension management often requires combination therapy.
- Sub-optimal blood pressure control necessitates exploring alternative antihypertensive agents.
Purpose of the Study:
- To evaluate the efficacy and safety of labetalol in patients with uncontrolled hypertension.
- To assess labetalol's antihypertensive effects in both open-label and placebo-controlled settings.
Main Methods:
- An open clinical trial involving 19 patients with sub-optimal blood pressure control.
- A placebo-controlled cross-over study to confirm antihypertensive effects.
- Patients continued diuretic therapy throughout the trials.
Main Results:
- Labetalol demonstrated significant blood pressure reduction in most patients.
- The placebo-controlled trial confirmed labetalol's antihypertensive efficacy.
- A notable postural hypotensive effect was observed, with mild postural faintness reported by a few patients.
Conclusions:
- Labetalol is an effective antihypertensive agent, particularly for patients with suboptimal control on existing therapies.
- The drug is generally well-tolerated, with few significant side effects.
- Postural effects were manageable and did not significantly limit labetalol's use.