All of the following can cause Optic Neuritis, except-: (A) Rifampicin, (B) Digoxin, (C) Chloroquine, (D) Ethambutol
Answer is A. Ans. (a) RifampicinRef Kanski 5/e, p. 601, 603Important drugs causing optic neuritis are quinine, chloroquine, ethambutol, isoniazid (INH), Streptomycin, Digoxin, Amoidarone, NSAIDs (aspirin, indomethacin, phenylbutazone, ibuprofen), vigabatrine, disulfiram).