Pharmacology · single question
Which oral lesion is most commonly caused by methotrexate?
Show answer and explanation
Correct answer: A. Oral ulcerations
- A. Correct. Methotrexate (an antifolate) commonly causes mucositis/oral ulcerations.
- B. Hyperkeratosis is not a typical methotrexate effect.
- C. Xerostomia is linked to anticholinergics, not methotrexate.
- D. Gingival hyperplasia is associated with phenytoin, cyclosporine, and calcium-channel blockers.