Which of the following neuromuscular blockers is a 'depolarizing' agent that acts as a nicotinic receptor agonist before causing a blockade?
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Correct answer: Succinylcholine
Succinylcholine is the only depolarizing neuromuscular blocker in clinical use. It binds to nicotinic receptors and causes persistent depolarization, resulting in initial fasciculations followed by flaccid paralysis.
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