Constipation is caused by all of the following drugs EXCEPT :
Correct Answer: Neostigmine
Description: Neostigmine is an inhibitor of acetylcholinesterase and thus acts like a cholinergic drug. Therefore, it can produce diarrhea (not constipation).
Atropine is an anticholinergic drug, thus can cause constipation.
Morphine and fentanyl are opioids. These can also result in constipation.
Category:
Pharmacology
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