Patients w/ severe Alzheimer's dementia, other types of dementia or memory impairment (eg, age-related cognitive decline); sick sinus syndrome or other supraventricular cardiac conduction conditions eg, SA or AV shock; increased risk for developing ulcers eg, history of ulcer disease (or those receiving NSAIDs); history of asthma or obstructive pulmonary disease. May likely to exaggerate succinylcholine-type muscle relaxation during anesth. May have vagotonic effects on heart rate (eg, bradycardia). Risk of bladder outflow obstruction; generalized convulsions. May exacerbate or induce extrapyramidal symptoms. Not to be used in patients w/ rare hereditary problems of galactose intolerance, lactose deficiency or glucose-galactose malabsorption. Concomitant use w/ inhibitors of acetylcholinesterase, agonists or antagonists of the cholinergic system. Severe hepatic impairment. Pregnancy. Not to be used during lactation. Not recommended for childn & adolescents <18 yr.