Parasympathomimetics · Pharmacology

Which drug is able to cross the blood-brain barrier and inhibit acetylcholinesterase in the CNS?

  1. Physostigmine
  2. Neostigmine
  3. Pyridostigmine
  4. Edrophonium
Show answer and explanation

Correct answer: Physostigmine

Physostigmine is a tertiary amine that can cross the blood-brain barrier. It inhibits acetylcholinesterase both in the central nervous system and peripherally.

Difficulty: Medium Question 15 of 20

Practice all 20 Parasympathomimetics questions

Keep practicing

More Parasympathomimetics questions