title: Acute and subchronic effects of bometolol on blood pressure in hypertensive rats.
abstract: Bometolol is a cardiospecific beta-adrenergic blocking drug. The effect on blood pressure was determined in hypertensive rats in acute and subchronic experiments. In acute experiment bometolol, 10-30 mg/kg, p.o., was given to spontaneously hypertensive rats; deoxycorticosterone and salt hypertensive rats; and two kidney, one clip hypertensive rats. Blood pressure was determined continuously for 8 h and after 24 h in unanesthetized condition. The blood pressure lowered by bometolol was dose-dependent in three types of hypertension. In subchronic experiment, bometolol at a dose of 10-30 mg/kg or 100-300 mg/kg, p.o., were given for 5 weeks to deoxycorticosterone and salt hypertensive rats; and two kidney, one clip hypertensive rats. Bometolol did not show antihypertensive effect in either type of hypertension, although bometolol decreased heart rate dose-dependently. Bometolol treatment at the above doses decreased plasma renin activity, heart and kidney weights, and incidence of vascular lesion in either hypertensive rat. Toxic symptom was seen 3 days after bometolol treatment of 300 mg/kg in deoxycorticosterone and salt hypertensive rats.
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000009:adverse effects / Q000494:pharmacology / Q000627:therapeutic use*; D000818:Animals; D001794:Blood Pressure / Q000187:drug effects*; D003864:Depression, Chemical; D004195:Disease Models, Animal; D004305:Dose-Response Relationship, Drug; D006339:Heart Rate / Q000187:drug effects; D006973:Hypertension / Q000188:drug therapy*; D011412:Propanolamines / Q000009:adverse effects / Q000494:pharmacology / Q000627:therapeutic use*; D051381:Rats
chemical_list: D000319:Adrenergic beta-Antagonists; D011412:Propanolamines; C022190:bometolol