Rifabutin

Rifabutin
Clinical data
Trade namesMycobutin[1]
AHFS/Drugs.comMonograph
MedlinePlusa693009
Pregnancy
category
  • AU: C
Routes of
administration		By mouth
ATC code
Legal status
Legal status
Pharmacokinetic data
Bioavailability85%
Protein binding85%
MetabolismLiver
Elimination half-life28 to 62 hours (mean)
ExcretionKidney and fecal
Identifiers
  • (9S,12E,14S,15R,16S,17R,18R,19R,20S,
    21S,22E,24Z)-6,16,18,20-tetrahydroxy-1'-
    isobutyl-14-methoxy-7,9,15,17,19,21,25-
    hepta-methyl-spiro[9,4-(epoxypentadeca
    [1,11,13]trienimino)-2H-furo-[2',3':7,8]-naphth
    [1,2-d]imidazol-2,4'-piperidin]-5,10,26-(3H,9H)-
    trione-16-acetate
CAS Number
PubChem CID
DrugBank
ChemSpider
UNII
KEGG
ChEBI
ChEMBL
CompTox Dashboard (EPA)
ECHA InfoCard100.133.627 Edit this at Wikidata
Chemical and physical data
FormulaC46H62N4O11
Molar mass847.019 g·mol−1
3D model (JSmol)
  • C[C@H]1/C=C\C=C(/C(=O)NC2=C3C(=NC4(N3)CCN(CC4)CC(C)C)C5=C6C(=C(C(=C5C2=O)O)C)O[C@@](C6=O)(O/C=C\[C@@H]([C@H]([C@H]([C@@H]([C@@H]([C@@H]([C@H]1O)C)O)C)OC(=O)C)C)OC)C)\C
  • InChI=1S/C46H62N4O11/c1-22(2)21-50-18-16-46(17-19-50)48-34-31-32-39(54)28(8)42-33(31)43(56)45(10,61-42)59-20-15-30(58-11)25(5)41(60-29(9)51)27(7)38(53)26(6)37(52)23(3)13-12-14-24(4)44(57)47-36(40(32)55)35(34)49-46/h12-15,20,22-23,25-27,30,37-38,41,49,52-54H,16-19,21H2,1-11H3,(H,47,57)/b13-12+,20-15+,24-14-/t23-,25+,26+,27+,30-,37-,38+,41+,45-/m0/s1 checkY
  • Key:ATEBXHFBFRCZMA-VXTBVIBXSA-N checkY
  (verify)

Rifabutin (Rfb) is an antibiotic used to treat tuberculosis and prevent and treat Mycobacterium avium complex.[1] It is typically only used in those who cannot tolerate rifampin such as people with HIV/AIDS on antiretrovirals.[1] For active tuberculosis it is used with other antimycobacterial medications.[1] For latent tuberculosis it may be used by itself when the exposure was with drug-resistant TB.[1]

Rifabutin was approved for medical use in the United States in 1992.[1] It is on the World Health Organization's List of Essential Medicines.[3]

  1. ^ a b c d e f "Rifabutin". The American Society of Health-System Pharmacists. Archived from the original on 20 December 2016. Retrieved 8 December 2016.
  2. ^ "Product monograph brand safety updates". Health Canada. February 2024. Retrieved 24 March 2024.
  3. ^ World Health Organization (2019). World Health Organization model list of essential medicines: 21st list 2019. Geneva: World Health Organization. hdl:10665/325771. WHO/MVP/EMP/IAU/2019.06. License: CC BY-NC-SA 3.0 IGO.