A patient is administered bethanechol for urinary retention. The patient is most likely to complain of which side effects?

Explanation

•Bethanechol is a muscarinic agonist that increases the tone of the detrusor muscle, causes bladder contractions, increases gastric tone, and increases peristalsis.

•Side effects are caused by acetylcholine activation and include increased gastric acid secretion, diarrhea, abdominal cramps, nausea, belching, vomiting, increased salivation, and increased tear formation.

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