Transient Memory Impairment and Hallucinations Associated with Tolterodine Use

To the Editor: Although anticholinergic medications are widely used to treat urinary incontinence in the elderly, the fact that their use may be associated with memory loss and visual hallucinations has not been well recognized, and these complications may therefore be incorrectly attributed to a degenerative dementia (e.g., Lewy body dementia).1 We report the case of a 73-year-old woman who presented with a two-year history of decreased short-term memory and vivid hallucinations of deceased relatives that occurred only during nighttime sleep; she awoke regularly to converse with these relatives. The symptoms began several weeks after she began to take tolterodine . . .