Which of the following anti-tubercular drug can cause ophthalmological toxicity?
Isoniazid
Rifampicin
Ethambutol
Pyrazinamide
Ethambutol side effect: causes Red Green color blindness (Ophthalmological toxicity) Isoniazid side effects: Neurotoxicity, Hepatotoxicity. Pyrazinamide side effects: Hyperuricemia (gouty ahritis). Rifampicin side effects: Hepatotoxicity, orange red urine and tears etc.