<prompt> As per WHO protocol ATT drug Cl in pregnancy:RifampicinPyrazinamideEthambutolStreptomycin  <response>: Ans: D Streptomycin T.B Treatment during pregnancy Park 21st175During pregnancy, streptomycin can cause permanent deafness in the baby, so ethambutol should be used instead of streptomycin. Isonsazid, rifampicin, pyrazinamide ethambutol are safe to use. Second-line drugs such as fluoroquinolones, ethionamide PS protionamide are teratogenic should not he usedT.B Treament during pregnancy1 KDT6th 748-49The WHO British Thoracic Society consider H, R Z to be safe to the foetus recommended the standard 6 month 2HRZ4HR regimen for pregnant women with T.B. Ethambutol can be added during late but not early pregnancy Streptomycin is contraindicated 