has role antiamoebic agent geroprotector rifamycins rifampicin A member of the class of rifamycins that is a a semisynthetic antibiotic derived from Amycolatopsis rifamycinica (previously known as Amycolatopsis mediterranei and Streptomyces mediterranei). antitubercular agent antineoplastic agent leprostatic drug EC 2.7.7.6 (RNA polymerase) inhibitor hydrazone N-iminopiperazine N-methylpiperazine protein synthesis inhibitor angiogenesis inhibitor DNA synthesis inhibitor cyclic ketal neuroprotective agent rifampicin zwitterion semisynthetic derivative Escherichia coli metabolite pregnane X receptor agonist