For treatment of extended drug resistance which of the following drugs are used EXCEPT?

Ans. is 'A' RifampicinMDR-TB is defined as resistance to at least both INH and rifampicin. Previously it was classified as Category IV under DOTS (DOTS-PLUS).The treatment is given in two phases, the intestive phase (IP) and the continuation phase (CP). The total duration of treatment for regimen for MDR-TB is 24-27 months, depending on the IP durationRegimen is :-Intensive phase (6-12 months) : Seven drugs : Capreomycin, PAS, moxifloxacin, high dose INH, clofazimine, Linezolid, amoxyclay.Continuation phase (18 months) : Six drugs : PAS, moxifloxacin, high dose INH, clofazimine, linezolid, amoxyclay.