Parasympatholytics · Pharmacology

Which drug is a quaternary ammonium antimuscarinic used in chronic obstructive pulmonary disease (COPD)?

  1. Atropine
  2. Scopolamine
  3. Ipratropium
  4. Tropicamide
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Correct answer: Ipratropium

Ipratropium is a quaternary ammonium antimuscarinic that acts locally in the lungs. It produces bronchodilation and is widely used in COPD and asthma.

Difficulty: Medium Question 7 of 20

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