Dry mouth, constipation, paralytic ileus, urinary retention, blurred vision & accommodation disturbances, increased IOP, hyperthermia; drowsiness. Headache, peripheral neuropathy, tremor, ataxia, epileptiform seizures, tinnitus, & occasional extrapyramidal symptoms including dysarthria. Confusion, hallucinations, delirium (particularly in elderly), mania or hypomania, & behavioural disturbances (particularly in childn).