Pharmacology · single question

Which medication caused the gingival enlargement shown in the image?

  1. Phenytoin
  2. Propranolol
  3. Lorazepam
  4. Clindamycin
Show answer and explanation

Correct answer: A. Phenytoin

  • A. Correct. Phenytoin (an anticonvulsant) is a classic cause of drug-induced gingival enlargement/hyperplasia, along with calcium channel blockers (e.g., nifedipine) and cyclosporine.
  • B. Propranolol (a beta-blocker) is not associated with gingival enlargement.
  • C. Lorazepam (a benzodiazepine) is not associated with gingival enlargement.
  • D. Clindamycin (an antibiotic) is not associated with gingival enlargement.

Practice Pharmacology questions Pharmacology study notes

More Pharmacology practice questions