has role is tautomer of antiamoebic agent geroprotector antifibrotic agent rifamycins rifampicin CHEBI:28077 A member of the class of rifamycins that is a a semisynthetic antibiotic derived from <em>Amycolatopsis rifamycinica</em> (previously known as <em>Amycolatopsis mediterranei</em> and <em>Streptomyces mediterranei</em>). antitubercular agent analgesic hypoglycemic agent antineoplastic agent vasodilator agent antihypertensive agent immunosuppressive agent antifungal agent leprostatic drug antirheumatic drug EC 2.7.7.6 (RNA polymerase) inhibitor hydrazone N-iminopiperazine N-methylpiperazine protein synthesis inhibitor antiparkinson drug angiogenesis inhibitor anti-ulcer drug anticoagulant laxative antiemetic DNA synthesis inhibitor cyclic ketal neuroprotective agent anti-HIV agent anti-HBV agent rifampicin zwitterion semisynthetic derivative Escherichia coli metabolite pregnane X receptor agonist