Eye defect by anti Tb drug:: (A) Ethambutol, (B) Pyrazinamide, (C) Rifampicin, (D) Isoniazid
Answer is A. Ans. a. EthambutolRef: Goodman Gilman 13th E/P1074Reversible eye defect in the form of optic neuritis and red-green (green>red) colour blindness can be seen with ethambutol.Hence ophthalmological examination for same is mandatory.These intensity of ocular toxicities are both dose and duration dependent.