1 rifampicin | Definition of rifampicin
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rifampin

noun
ri·​fam·​pin | \ rÄ«-ˈfam-pÉ™n How to pronounce rifampin (audio) \
variants: or rifampicin \ rÄ«-​ˈfam-​pÉ™-​sÉ™n How to pronounce rifampicin (audio) \

Definition of rifampin

: a semisynthetic antibiotic C43H58N4O12 used especially in the treatment of tuberculosis and to treat asymptomatic carriers of meningococci

Examples of rifampin in a Sentence

Recent Examples on the Web

 Research has found that the antibiotic rifampin, which is used to treat tuberculosis, and griseofulvin, a drug used to treat fungal infections, may decrease the effectiveness of hormonal birth control pills. — Korin Miller, SELF, "Can Antibiotics Actually Make Your Birth Control Fail?," 27 July 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'rifampin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of rifampin

1966, in the meaning defined above

History and Etymology for rifampin

International Scientific Vocabulary, alteration of rifamycin, antibiotic derived from Streptomyces mediterranei

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More Definitions for rifampin

rifampin

noun
ri·​fam·​pin | \ rÄ«-ˈfam-pÉ™n How to pronounce rifampin (audio) \
variants: or rifampicin \ rÄ«-​ˈfam-​pÉ™-​sÉ™n How to pronounce rifampicin (audio) \

Medical Definition of rifampin

: a semisynthetic antibiotic C43H58N4O12 that is used especially in the treatment of tuberculosis and to treat asymptomatic carriers of meningococci

More from Merriam-Webster on rifampin

Britannica.com: Encyclopedia article about rifampin

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