Active Ingredient History

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Rifabutin is an antibiotic that inhibits DNA-dependent RNA polymerase activity in susceptible cells. Specifically, it interacts with bacterial RNA polymerase but does not inhibit the mammalian enzyme. It is bactericidal and has a very broad spectrum of activity against most gram-positive and gram-negative organisms (including Pseudomonas aeruginosa) and specifically Mycobacterium tuberculosis. It is FDA approved for the prophylaxis of disseminated Mycobacterium avium complex (MAC) disease in patients with advanced HIV infection. Multiple dosing of rifabutin has been associated with induction of hepatic metabolic enzymes of the CYP3A subfamily. Rifabutin’s predominant metabolite (25-desacetyl rifabutin: LM565), may also contribute to this effect. Similarly, concomitant medications that competitively inhibit the CYP3A activity may increase plasma concentrations of rifabutin. Common adverse reactions include discoloration of skin, rash, diarrhea, disorder of taste, indigestion, loss of appetite, nausea, vomiting, increased liver aminotransferase level (mild), ocular discoloration, uveitis, abnormal color of body fluid.   NCATS

  • SMILES: CO[C@H]1\C=C\O[C@@]2(C)OC3=C(C)C(O)=C4C(=O)C(NC(=O)C(C)=C\C=C\[C@H](C)[C@H](O)[C@@H](C)[C@@H](O)[C@@H](C)[C@H](OC(C)=O)[C@@H]1C)=C5NC6(CCN(CC(C)C)CC6)N=C5C4=C3C2=O
  • InChIKey: ATEBXHFBFRCZMA-VXTBVIBXSA-N
  • Mol. Mass: 847.0047
  • ALogP: 4.62
  • ChEMBL Molecule:
More Chemistry

Drug Pricing (per unit)

United States

$5.7609 - $12.3278
More Pricing Detail

Note: This drug pricing data is preliminary, incomplete, and may contain errors.

Combination drugs

( amoxicillin, rifabutin (mycobutin), omeprazole (prilosec) - other name: omeprazole magnesium, amoxicillin, rifabutin )
1,4-dihydro-1-deoxy-1',4-didehydro-5'-(2-methylpropyl)-1-oxorifamycin xiv | 4-deoxo-3,4-(2-spiro(n-isobutyl-4-piperidyl)-2,5-dihydro-1h-imidazo)-rifamycin s | 4-n-isobutylspiropiperidylrifamycin s | ansamicin | ansamycin | lm-427 | mycobutin | mycobutin (tn) | rifabutin | rifabutina | rifabutine | rifabutinum

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