Experiences with Metoprolol Durules®,A Slow-Release Formulation in Hypertension

Abstract

The antihypertensive effect and the tolerability of metoprolol Durules® have been studied in fifty-five patients with mild to moderate hypertension. The patients' diastolic blood pressure was ≥95 mm Hg in order to qualify for entry.

Thirty-seven out of fifty-three patients completing the study (70%) were treated with metoprolol Durules® monotherapy throughout the study. The mean blood pressure was reduced from 153/101 to 138/92 mm Hg after metoprolol Durules® compared to placebo (p < 0.001). Twenty-seven patients received one Durules® daily and ten patients received two Durules® daily as the final dose.

Of the sixteen patients not responding on metoprolol Durules®, six patients achieved satisfactory control, i.e. a diastolic blood pressure below 95 mm Hg, when given 200 mg metoprolol + 25 mg hydrochlorothiazide (HCT).

The results indicate that most patients with, mild or moderate hypertension can be controlled with metoprolol Durules® monotherapy given once daily. The addition of HCT gives a significant benefit in moderate hypertension, where metoprolol monotherapy is not sufficient.