Anti-tubercular drug not given in children < 6 years age is
Ethambutol may cause ‘optic neuritis’ (ocular toxicity): It may lead to ‘red-green color blindness’ and patients may thus develop ‘blue vision’
Thus it is contraindicated in children < 6 years age, as they may not be able to report any deterioration of color vision
Ethambutol
Isoniazid
Streptomycin
Rifampicin