<prompt> Anti-tubercular drug not given in children 6 years age isEthambutolIsoniazidStreptomycinRifampicin  <response>: Ethambutol may cause optic neuritis ocular toxicity: It may lead to red-green color blindness and patients may thus develop blue visionThus it is contraindicated in children 6 years age, as they may not be able to report any deterioration of color vision 