NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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What common side effect is associated with anticholinergics used for OAB?

  1. Hypertension

  2. Xerostomia

  3. Increased appetite

  4. Weight loss

The correct answer is: Xerostomia

Anticholinergics used for Overactive Bladder (OAB) commonly cause xerostomia, which refers to dry mouth. This side effect occurs because anticholinergics block the action of acetylcholine, leading to a decrease in salivary gland function. Xerostomia can be bothersome to patients and may result in difficulty speaking, chewing, and swallowing. Therefore, it is important for healthcare providers to monitor and manage this common side effect in patients taking anticholinergic medications for OAB. Hypertension, increased appetite, and weight loss are not common side effects associated with anticholinergics used for OAB.

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