Parasympathomimetics · Pharmacology

Which drug is a short-acting acetylcholinesterase inhibitor used diagnostically in myasthenia gravis?

  1. Edrophonium
  2. Pyridostigmine
  3. Neostigmine
  4. Physostigmine
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Correct answer: Edrophonium

Edrophonium has a very short duration of action and temporarily increases acetylcholine levels. It was historically used to diagnose myasthenia gravis by improving muscle strength briefly.

Difficulty: Medium Question 12 of 20

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