Parasympathomimetics · Pharmacology

Which physiological effect is commonly produced by parasympathomimetic drugs?

  1. Tachycardia
  2. Bronchodilation
  3. Reduced glandular secretion
  4. Pupillary constriction
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Correct answer: Pupillary constriction

Parasympathomimetics stimulate muscarinic receptors in the eye. This causes contraction of the sphincter pupillae muscle, resulting in pupil constriction (miosis).

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