skip to main content

Carbamazepine Oral Side Effects — NDEB AFK MCQ

Instant feedback + full explanation. One question, done properly.

ModeratePharmacologyCarbamazepine Oral Side EffectsNDEB AFK

A patient with known epilepsy controlled on carbamazepine presents for dental treatment. Which oral side effect of carbamazepine should the dentist monitor?

Educational content. Not a substitute for clinical judgement or local policy.

Reveal the answer and explanation

Correct answer: CGingival overgrowth

Carbamazepine can cause gingival overgrowth (gingival hyperplasia), similar to phenytoin and other anticonvulsants, although less frequently. Other oral side effects include xerostomia, stomatitis, and glossitis. Carbamazepine also induces hepatic CYP3A4 enzymes, potentially reducing the effectiveness of drugs metabolised by this pathway (e.g., oral contraceptives, benzodiazepines, corticosteroids). Drug interactions should be considered when prescribing concurrent medications.

Reference: Katzung – Basic and Clinical Pharmacology, 15th ed., 2021