Combined treatment of severe essential hypertension with the new angiotensin converting enzyme inhibitor ramipril.
Ramipril is a newly synthesized angiotensin converting enzyme inhibitor without a sulfhydryl group in the molecule but with a prolonged duration of action. Efficacy, tolerance and safety of this drug were evaluated in 10 patients with severe essential hypertension. After a treatment period of at least 4 weeks with the conventional antihypertensive drug combination of a diuretic and a beta-blocking agent with the vasodilator dihydralazine, their systolic and diastolic blood pressures averaged 161 +/- 6 and 111 +/- 2 mm Hg, respectively. Because diastolic blood pressure during this drug regimen was still greater than 105 mm Hg in all patients, the patients received ramipril initially at single daily doses of 5 mg in addition to their previous medication. The first dose of 5 mg ramipril resulted in a moderate but significant decrease in systolic and diastolic blood pressure in 9 of the 10 patients to 142 +/- 5 and 104 +/- 4 mm Hg (p less than 0.01), respectively, between 3 and 6 hours after drug administration. In 1 patient blood pressure was unresponsive to ramipril and 1 patient complained of nausea and vomiting within the first week of treatment with ramipril. Within the following 8-week treatment period with a once-daily intake of 5 or, if necessary, 10 mg of ramipril, diastolic blood pressure normalized in the remaining 8 patients to less than 90 mm Hg. Systolic and diastolic blood pressure averaged 130 +/- 5 and 83 +/- 2 mm Hg, respectively, at the end of the 8-week treatment period with ramipril. Severe hypotension and reflex tachycardia were not observed.(ABSTRACT TRUNCATED AT 250 WORDS)
D000328:Adult; D000806:Angiotensin-Converting Enzyme Inhibitors; D000959:Antihypertensive Agents / Q000009:adverse effects / Q000627:therapeutic use*; D001794:Blood Pressure / Q000187:drug effects*; D001643:Bridged Bicyclo Compounds / Q000009:adverse effects / Q000627:therapeutic use*; D001952:Bridged-Ring Compounds / Q000627:therapeutic use*; D004334:Drug Administration Schedule; D005260:Female; D006339:Heart Rate / Q000187:drug effects*; D006801:Humans; D006973:Hypertension / Q000188:drug therapy*; D008297:Male; D008875:Middle Aged; D017257:Ramipril
D000806:Angiotensin-Converting Enzyme Inhibitors; D000959:Antihypertensive Agents; D001643:Bridged Bicyclo Compounds; D001952:Bridged-Ring Compounds; D017257:Ramipril