Enhancement of Detrusor Reflex Activity by Naloxone in Patients With Chronic Neurogenic Bladder Dysfunction. Preliminary Report

Abstract
An i.v. injection of 0.4 mg naloxone enhanced detrusor reflex activity in 5 patients with chronic neurogenic bladder dysfunction caused by incomplete suprasacral spinal lesions. The intravesical volume at which detrusor reflex occurred showed a decrease from 498.2 to 346.2 ml. The naloxone-induced effect was short-lived, being absent 1 h after the injection. In the same dosage naloxone did not induce detrusor reflex in 2 patients with areflexic bladder caused by complete suprasacral spinal lesions.