[Initial experiences with the calcium antagonist tiapamil in the treatment of arterial hypertension].

24 hypertensive patients were treated with 300-450 mg tiapamil daily for 2-6 months. The antihypertensive effect of this new calcium entry blocking agent was expressed by a reduction even of extremely elevated blood pressures to the normotensive, but not to the hypotensive range, in 20 patients. The drug was well tolerated.