非達霉素(1毫克)產品是Fidaxomycin is a natural macrocyclic antibiotic and RNA polymerase inhibitor that displays selectivity for Gram-positive bacteria over Gram-negative bacteria (IC??s = 0.4 and 6 uM, respectively).?It shows potent antibacterial activity against most Gram-positive bacteria and effectively targets the Gram-positive?C. difficile?(MIC = 12 ng/ml). Also shown to have excellent bactericidal activity against multidrug-resistant Mycobacterium tuberculosis.?