Paper I
2016 October (Supplementary) (2010 Scheme) · 40 marks · 120 min

Question

Therapeutic uses and adverse effects of atropine.

Q53 marksShort Notes

Answer

Atropine is a non-selective muscarinic receptor antagonist.

Therapeutic uses

  • Preanaesthetic medication (reduces secretions, prevents vagal bradycardia)
  • Antidote for organophosphorus/anticholinesterase poisoning
  • Treatment of sinus bradycardia/AV block
  • Mydriatic/cycloplegic for ophthalmic examination
  • Antispasmodic (GI/renal/biliary colic)

Adverse effects

  • Dry mouth, blurred vision (cycloplegia), photophobia
  • Tachycardia
  • Urinary retention, constipation
  • Hyperthermia (reduced sweating)
  • CNS excitement/delirium at high doses
  • Contraindicated in narrow-angle glaucoma and prostatic hypertrophy

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