A first-line antituberculosis drug; a bactericidal agent used in the treatment of tuberculosis and other infections, that, like all antituberculosis drugs, must not be used alone in the treatment of active tuberculosis; a powerful inducer of hepatic microsomal enzymes. SYN: rifampicin.
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ri·fam·pin rī-'fam-pən or ri·fam·pi·cin rī-'fam-pə-sən n a semisynthetic antibiotic C43H58N4O12 that is used esp. in the treatment of tuberculosis and to treat asymptomatic carriers of meningococci
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rif·am·pin (RIF) (rif-amґpin) [USP] a semisynthetic derivative of rifamycin SV, having the antibacterial actions and uses of the rifamycin (q.v.) group of antibiotics; administered orally or intravenously. Called also rifampicin.Medical dictionary. 2011.