Department of Urology, Faculty of Medicine, Kyoto Univeersity
Abstract
PACATAL, which is a derivative of phen o thiazine, has been used in potentiation of anesthesia, and its anesthetic effect in combination with th e lumbar anesthesis in 36 cases of urological operations has been reported. PACATAL exerted a weak hypnotic action when used alone, but a satisfactory hypnotic effect in the cocktial with VENA (an antihistaminic) and OPYSTAN (an analgesic) ; potentiated the effect of lumbar anesthesia and produced excellent anesthetic results. In comparison with Chlorpro m azine, PACATAL had a lesser hypotensive action and more favorable stabilizing action on blood pressure following lumbar anesthesia. Remarkable hypotension was rarely observed in the trested patients
