Biomaterial Database

Penbutolol in hypertension: a pilot study with single daily doses. 1977

V H Yajnik, and J S Nandi, and S C Patel, and H V Doshi, and S H Patel

A pilot single-blind placebo controlled crossover within-patient study was undertaken in essential hypertension. In ten patients single daily doses of 25 mg and 50 mg and in two patients 25 mg, 50 mg and 100 mg were used. Satisfactory reductions in both systolic and diastolic blood pressure in the supine and erect postures were observed. Reduction in heart rate was of the order of 6-32%, there being no correlation between reductions in blood pressure and decrements in heart rate. Three patients were dropped from the final analyses. Seventy-eight per cent (7/9) of patients had a final diastolic pressure (lying) of 90 mm Hg or less. Single doses of penbutolol controlled blood pressure for at least twenty-four hours. At the end of two weeks on placebo medication, following nine weeks of active drug medication, blood pressure had reverted to near pre-treatment levels. Penbutolol was well tolerated.

UI	MeSH Term	Description	Entries
D006973	Hypertension	Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more.	Blood Pressure, High,Blood Pressures, High,High Blood Pressure,High Blood Pressures
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D010865	Pilot Projects	Small-scale tests of methods and procedures to be used on a larger scale if the pilot study demonstrates that these methods and procedures can work.	Pilot Studies,Pilot Study,Pilot Project,Project, Pilot,Projects, Pilot,Studies, Pilot,Study, Pilot
D010919	Placebos	Any dummy medication or treatment. Although placebos originally were medicinal preparations having no specific pharmacological activity against a targeted condition, the concept has been extended to include treatments or procedures, especially those administered to control groups in clinical trials in order to provide baseline measurements for the experimental protocol.	Sham Treatment
D011187	Posture	The position or physical attitude of the body.	Postures
D011412	Propanolamines	AMINO ALCOHOLS containing the propanolamine (NH2CH2CHOHCH2) group and its derivatives.	Aminopropanols
D002986	Clinical Trials as Topic	Works about pre-planned studies of the safety, efficacy, or optimum dosage schedule (if appropriate) of one or more diagnostic, therapeutic, or prophylactic drugs, devices, or techniques selected according to predetermined criteria of eligibility and observed for predefined evidence of favorable and unfavorable effects. This concept includes clinical trials conducted both in the U.S. and in other countries.	Clinical Trial as Topic
D004334	Drug Administration Schedule	Time schedule for administration of a drug in order to achieve optimum effectiveness and convenience.	Administration Schedule, Drug,Administration Schedules, Drug,Drug Administration Schedules,Schedule, Drug Administration,Schedules, Drug Administration
D005260	Female		Females