Neuromuscular Blockers · Pharmacology

Which of the following neuromuscular blocking agents is a depolarizing blocker?

  1. Rocuronium
  2. Vecuronium
  3. Succinylcholine
  4. Atracurium
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Correct answer: Succinylcholine

Succinylcholine is the only commonly used depolarizing neuromuscular blocker. It mimics acetylcholine at nicotinic receptors, causing persistent depolarization of the motor end plate and preventing further muscle contraction.

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