Which of the following is NOT a side effect of overactive bladder medications?

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Overactive bladder medications mainly produce anticholinergic effects because they block acetylcholine in the bladder to calm its overactivity. That same action reduces secretions and slows gut movement. So dry mouth happens as saliva decreases, dry eyes occur from reduced tear production, and constipation shows up from slower intestinal motility. A urinary tract infection, on the other hand, isn’t a typical direct side effect of these drugs; infections aren’t caused by the drug’s mechanism in the same predictable way. In some cases, if the bladder doesn’t empty well because of the medication, that could raise infection risk, but UTIs aren’t considered a standard adverse effect of these medications.