Enhanced sedative effect by alcohol. Increased risk of ventricular rhythm disorders w/ sultopride. Enhanced central depression w/ other CNS depressants eg, sedative, antidepressants, barbiturates, clonidine, hypnotics, morphine derivatives (analgesics & antitussives), methadone, neuroleptics, anxiolytics. Addition of adverse atropine effects w/ imipramine, antidepressants, anticholinergic, antiparkinsonians, atropine antispasmodics, disopyramide, phenothiazines, neuroleptics.