Abstract
The effect of propiverine hydrochloride (P-4) on the function of the bladder in decerebrated dogs was compared with that of propantheline, an anticholinergic drug which is used for the treatment of micturitional disorders. P-4 (5 and 10 mg/kg, i.v.) significantly increased maximum vesical volume (Vmax); and at the dose of 10 mg/kg, i.v., it also significantly increased effective vesical volume (EV) when determined by cystometry. However, at the dose level of 2, 5 and 10 mg/kg, i.v., P-4 had no effect on residual volume (RV) after micturition contraction. Propantheline (0.25 and 0.5 mg/kg, i.v.) also significantly increased Vmax, but showed no effect on EV. At doses higher than 0.016 mg/kg, i.v., propantheline significantly increased RV. These findings indicate that P-4 is a useful drug for the treatment of pollakiuria.
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