Bethanechol is a cholinergic agonist that directly stimulates muscarinic receptors in the bladder wall, leading to increased detrusor muscle tone and increased bladder emptying. It is commonly used to treat urinary retention or incomplete bladder emptying. It has no effect on gastric acid secretion, muscle strength or bronchial airway constriction.

Solved

Bethanechol

Question 18

Multiple Choice

Bethanechol:

A) Increases detrusor muscle tone to empty the bladder
B) Decreases gastric acid secretion to treat peptic ulcer disease
C) Stimulates voluntary muscle tone to improve strength
D) Reduces bronchial airway constriction to treat asthma

Correct Answer: