Antihypertensive action of the novel angiotensin converting enzyme inhibitor benazepril hydrochloride in hypertensive rat models.
Single or repeated administration of benazepril hydrochloride (CGS 14824 A, CAS 86541-74-4), a novel angiotensin I converting enzyme inhibitor, (0.3-10 mg/kg p.o.) caused significant antihypertensive effects in renal and spontaneously hypertensive rats (SHR). The antihypertensive effects of benazepril hydrochloride was about 3 times as potent as that of captopril in these models. Single administration (0.3-3 mg/kg p.o.) of benazepril hydrochloride and enalapril maleate showed an equipotent antihypertensive effect in SHR. Benazepril hydrochloride (3-30 mg/kg p.o.), however, showed no clear effect on the blood pressure and heart rate in normotensive or DOCA/salt hypertensive rats.
Tanaka
M
M
Pre-clinical Research Department, Ciba-Geigy Limited, Takarazuka, Japan.
Yamamoto
S
S
Nakao
K
K
Inukai
T
T
Ogawa
N
N
Katsumura
H
H
Ohara
N
N
Shukunobe
K
K
Ono
H
H
D000284:Administration, Oral; D000806:Angiotensin-Converting Enzyme Inhibitors / Q000494:pharmacology*; D000818:Animals; D000959:Antihypertensive Agents; D001552:Benzazepines / Q000494:pharmacology*; D002216:Captopril / Q000494:pharmacology; D003900:Desoxycorticosterone; D004656:Enalapril / Q000494:pharmacology; D006973:Hypertension / Q000139:chemically induced / Q000188:drug therapy / Q000503:physiopathology*; D006978:Hypertension, Renovascular / Q000503:physiopathology; D008297:Male; D051381:Rats; D011918:Rats, Inbred SHR; D011919:Rats, Inbred Strains
D000806:Angiotensin-Converting Enzyme Inhibitors; D000959:Antihypertensive Agents; D001552:Benzazepines; D003900:Desoxycorticosterone; D004656:Enalapril; D002216:Captopril; C044946:benazepril