What Is the Mechanism of Action of the Drug Botulinum

question 3

Multiple Choice

What is the mechanism of action of the drug botulinum?

• A) It inhibits the release of acetylcholine from cholinergic nerve endings.
• B) It enhances the activity of the enzyme acetylcholinesterase.
• C) It displaces acetylcholine from muscarinic receptor sites and prevents it from producing its effects.
• D) It permanently inactivates acetylcholinesterase by forming an irreversible bond with the enzyme.

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