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Related to rifamycin: Rifaximin
any of a family of antibiotics biosynthesized by 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. Used for the initial treatment and retreatment of pulmonary tuberculosis and for prevention of meningoccal infections in close contacts of patients with Neisseria meningitidis infections.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
Any of a group of antibiotics originally isolated from a strain of the soil microorganism Streptomyces mediterranei, used in the United States to treat tuberculosis and prevent meningococcal infections, and used in other countries to treat leprosy and other bacterial diseases.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.