title: Clinical-pharmacological evaluation of a new beta blocker, GYKI-41099 (tobanum).
abstract: The acute and chronic circulatory effects of a new beta adrenergic blocking drug, dl-1-(2,5-dichlorophenoxy)-3-tertiary-butylamino-2-propanol hydrochloride, GYKI-41099, have been assessed in patients with hyperkinetic circulation/or mild hypertension. The acute effects of GYKI-41099 2.5, 5 and 10 mg have been compared with those of propranolol 10, 20 and 40 mg using a cross-over design in 18 patients with elevated cardiac index. Each dose of both drugs produced a significant reduction in sitting and exercise heart rate. The potency of GYKI-41099 compared with propranolol proved to be 3:1. 13 patients with hyperkinetic circulation on GYKI-41099 5-15 mg daily for 2 months exhibited a significant reduction in resting heart rate and cardiac index. In 13 patients with mild hypertension the drug exerted marked antihypertensive effect. Side effects were minimal and short-lived.
mesh_terms: D000293:Adolescent; D000319:Adrenergic beta-Antagonists / Q000627:therapeutic use*; D000328:Adult; D001794:Blood Pressure / Q000187:drug effects; D002302:Cardiac Output / Q000187:drug effects; D002986:Clinical Trials as Topic; D005260:Female; D006339:Heart Rate / Q000187:drug effects; D006439:Hemodynamics / Q000187:drug effects; D006801:Humans; D006973:Hypertension / Q000188:drug therapy*; D008297:Male; D005082:Physical Exertion; D011412:Propanolamines / Q000627:therapeutic use*; D011433:Propranolol / Q000627:therapeutic use; D013997:Time Factors
chemical_list: D000319:Adrenergic beta-Antagonists; D011412:Propanolamines; D011433:Propranolol; C025725:tobanum