Fusidic acid

Fusidic acid, sold under the brand names Fucidin among others, is a steroid antibiotic that is often used topically in creams or ointments and eyedrops but may also be given systemically as tablets or injections.
As of October 2008, the global problem of advancing antimicrobial resistance has led to a renewed interest in its use.

Fusidic acid
Clinical data
Trade namesFucidin, Fucithalmic, Stafine
Other namesSodium fusidate
AHFS/Drugs.comMicromedex Detailed Consumer Information
ATC code
Legal status
Legal status
  • In general: ℞ (Prescription only)
Pharmacokinetic data
Bioavailability91% oral bioavailability
Protein binding97 to 99%
Elimination half-lifeApproximately 5 to 6 hours in adults
Identifiers
  • 2-[(1S,2S,5R,6S,7S,10S,11S,13S,14Z,15R,17R)-13-(acetyloxy)-5,17-dihydroxy-2,6,10,11-tetramethyltetracyclo[8.7.0.02,7.011,15]heptadecan-14-ylidene]-6-methylhept-5-enoic acid
CAS Number
PubChem CID
DrugBank
ChemSpider
UNII
KEGG
ChEBI
ChEMBL
PDB ligand
CompTox Dashboard (EPA)
ECHA InfoCard100.027.506
Chemical and physical data
FormulaC31H48O6
Molar mass516.719 g·mol−1
3D model (JSmol)
SMILES
  • O=C(O)/C(=C3/[C@@H]2C[C@@H](O)[C@H]1[C@@]4(C)CC[C@@H](O)[C@@H](C)[C@@H]4CC[C@@]1([C@]2(C[C@@H]3OC(=O)C)C)C)CC\C=C(/C)C
  • InChI=1S/C31H48O6/c1-17(2)9-8-10-20(28(35)36)26-22-15-24(34)27-29(5)13-12-23(33)18(3)21(29)11-14-30(27,6)31(22,7)16-25(26)37-19(4)32/h9,18,21-25,27,33-34H,8,10-16H2,1-7H3,(H,35,36)/b26-20-/t18-,21-,22-,23+,24+,25-,27-,29-,30-,31-/m0/s1 Y
  • Key:IECPWNUMDGFDKC-MZJAQBGESA-N Y
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