Which option is NOT a common adverse effect of anticholinergic medications?

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Multiple Choice

Which option is NOT a common adverse effect of anticholinergic medications?

Explanation:
Anticholinergic medications block acetylcholine at muscarinic receptors, reducing parasympathetic activity. In the GI tract this slows motility and decreases secretions, so constipation becomes common and the mouth is dry because saliva production decreases. In the urinary tract, decreased parasympathetic stimulation also reduces detrusor muscle contractions, leading to urinary retention. Since these drugs blunt stimulation that would normally promote bowel movements and secretions, diarrhea does not fit as a common adverse effect. Dry mouth, constipation, and urinary retention align with the anticholinergic effect, whereas diarrhea does not.

Anticholinergic medications block acetylcholine at muscarinic receptors, reducing parasympathetic activity. In the GI tract this slows motility and decreases secretions, so constipation becomes common and the mouth is dry because saliva production decreases. In the urinary tract, decreased parasympathetic stimulation also reduces detrusor muscle contractions, leading to urinary retention. Since these drugs blunt stimulation that would normally promote bowel movements and secretions, diarrhea does not fit as a common adverse effect. Dry mouth, constipation, and urinary retention align with the anticholinergic effect, whereas diarrhea does not.

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