rifamycin /rif·a·my·cin/ (rif″ah-mi´sin) any of a family of antibiotics biosynthesized by a strain of Streptomyces mediterranei, effective against a broad spectrum of bacteria, including gram-positive cocci, some gram-negative bacilli, and Mycobacterium tuberculosis and certain other mycobacteria; used for the treatment of tuberculosis and the prophylaxis of meningococcal infections.
rifamycin
rif·a·my·cin (r f  -m  sn)n. Any of a group of antibiotics originally isolated from a strain of the soil microorganism Streptomyces mediterranei, used in the treatment of leprosy, tuberculosis, and other bacterial diseases. |
rifamycin
[rif′ah-mi′sin]
any of a family of antibiotics biosynthesized from a strain of Streptomyces mediterranei, effective against a broad spectrum of bacteria. The five components are designated A, B, C, D, and E; rifamycins O, S, and SV are derivatives of the B component, and AG and X are derivatives of the O component. It is used for the initial treatment and retreatment of pulmonary tuberculosis and for prevention of meningococcal infections in close contacts of patients with Neisseria meningitidis infections.
rifamycin
a family of antibiotics produced in cultures of Streptomyces mediterranei. Effective against gram-positive cocci and gram-negative bacilli and mycobacteria including Mycobacterium tuberculosis.
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