Rifampin

**Semantic type:** Organic Chemical|Pharmacologic Substance

**Definition:** A semisynthetic derivative of rifamycin with broad antibacterial activity. Rifampin inhibits DNA-dependent RNA polymerase in susceptible bacteria and is often used in combination with other antibiotics for various infections including tuberculosis.

**Synonyms:** - L-5103 - RIFAMPIN - Rifadin - Rifadin - Rifampicin - Rimactane - Rimactane - rifampin