Patients w/ dysuria, arrhythmia, hepatic & renal dysfunction, dementia or cognitive dysfunction, Parkinsonian symptoms or cerebrovascular disorder, ulcerative colitis, hyperthyroidism. Monitor the residual urine vol in patients w/ lower urinary tract obstructive disease including BPH prior to treatment. May induce eye accommodation disorder including photophobia, blurred vision & eye abnormality in patients who operate potentially hazardous machinery eg, driving a car. Not for patients w/ dementia or cognitive dysfunction. Pregnancy & lactation. Childn, low birthwt babies, neonates, nursing infants. Elderly.