<prompt> For treatment of extended drug resistance which of the following drugs are used EXCEPT?RifampicinINHMoxifloxacinCapreomycin  <response>: 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. 