Concomitant use w/ alcohol or substance w/ alcoholic ingredients, CNS drugs eg, benzodiazepines or antidepressants. Patients w/ predisposing factors of urinary retention eg, spinal cord lesion, prostatic hyperplasia. Galactose intolerance, Lapp-lactose deficiency or glucose-galactose malabsorption. Hepatic & renal impairment. Do not drive or operate machinery or working at risk of falling from a height. Pregnancy (1st trimester) & lactation. Childn <2 yr.