Bufexamac

Chemical compound
  • M01AB17 (WHO) M02AA09 (WHO)
Legal statusLegal status
  • In general: Over-the-counter (OTC)
Pharmacokinetic dataExcretionRenalIdentifiers
  • 2-(4-butoxyphenyl)-N-hydroxyacetamide
CAS Number
  • 2438-72-4
PubChem CID
  • 2466
IUPHAR/BPS
  • 7498
ChemSpider
  • 2372
UNII
  • 4T3C38J78L
KEGG
  • D01271
ChEMBL
  • ChEMBL94394
CompTox Dashboard (EPA)
  • DTXSID7045368 Edit this at Wikidata
ECHA InfoCard100.017.683 Edit this at WikidataChemical and physical dataFormulaC12H17NO3Molar mass223.272 g·mol−13D model (JSmol)
  • Interactive image
  • ONC(=O)Cc1ccc(OCCCC)cc1
InChI
  • InChI=1S/C12H17NO3/c1-2-3-8-16-11-6-4-10(5-7-11)9-12(14)13-15/h4-7,15H,2-3,8-9H2,1H3,(H,13,14)
  • Key:MXJWRABVEGLYDG-UHFFFAOYSA-N

Bufexamac is a drug used as an anti-inflammatory agent on the skin, as well as rectally. Common brand names include Paraderm and Parfenac. It was withdrawn in Europe and Australia[1] because of allergic reactions.

Indications

Ointments and lotions containing bufexamac are used for the treatment of subacute and chronic eczema of the skin, including atopic eczema, as well as sunburn and other minor burns,[citation needed] and itching. Suppositories containing bufexamac in combination with local anaesthetics are used against haemorrhoids.[2]

Pharmacology

Bufexamac is thought to act by inhibiting the enzyme cyclooxygenase, which would make it a non-steroidal anti-inflammatory drug. Evidence on the mechanism of action is scarce.[3] Furthermore, bufexamac was identified as a specific inhibitor of class IIB histone deacetylases (HDAC6 and HDAC10).[4]

Side effects

Bufexamac can cause severe contact dermatitis which is often hard to distinguish from the initial condition.[5] As a consequence, the European Medicines Agency recommended to withdraw the marketing approval in April 2010.[6]

References

  1. ^ "Bufexamac Safety advisory - risk of serious skin reactions". Therapeutic Goods Administration (TGA). 2020.
  2. ^ Dinnendahl V, Fricke U, eds. (2010). Arzneistoff-Profile (in German). Vol. 2 (23 ed.). Eschborn, Germany: Govi Pharmazeutischer Verlag. ISBN 978-3-7741-9846-3.
  3. ^ Gloor M, Thoma K, Fluhr J (2000). Dermatologische Externatherapie: Unter besonderer Berücksichtigung der Magistralrezeptur (in German). Springer. p. 349. ISBN 978-3-540-67174-9.
  4. ^ Bantscheff M, Hopf C, Savitski MM, Dittmann A, Grandi P, Michon AM, et al. (March 2011). "Chemoproteomics profiling of HDAC inhibitors reveals selective targeting of HDAC complexes". Nature Biotechnology. 29 (3): 255–265. doi:10.1038/nbt.1759. PMID 21258344. S2CID 205275159.
  5. ^ "Bufexamac: Ein Ekzemtherapeutikum, das selbst häufig allergische Kontaktekzeme hervorruft". Deutsches Ärzteblatt (in German) (47). 2000.
  6. ^ "European Medicines Agency recommends revocation of marketing authorisations for bufexamac" (PDF). European Medicines Agency. 2010-04-22. Archived from the original (PDF) on 2010-05-31. Retrieved 2010-05-01.
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Non-steroidal anti-inflammatory drugs (NSAIDs) (primarily M01A and M02A, also N02BA)
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Receptor
(ligands)
DP (D2)Tooltip Prostaglandin D2 receptor
DP1Tooltip Prostaglandin D2 receptor 1
DP2Tooltip Prostaglandin D2 receptor 2
EP (E2)Tooltip Prostaglandin E2 receptor
EP1Tooltip Prostaglandin EP1 receptor
  • Antagonists: AH-6809
  • ONO-8130
  • SC-19220
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EP2Tooltip Prostaglandin EP2 receptor
  • Antagonists: AH-6809
  • PF-04418948
  • TG 4-155
EP3Tooltip Prostaglandin EP3 receptor
  • Antagonists: L-798106
EP4Tooltip Prostaglandin EP4 receptor
  • Antagonists: Grapiprant
  • GW-627368
  • L-161982
  • ONO-AE3-208
Unsorted
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IP (I2)Tooltip Prostacyclin receptor
  • Antagonists: RO1138452
TP (TXA2)Tooltip Thromboxane receptor
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Enzyme
(inhibitors)
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(PTGS)
PGD2STooltip Prostaglandin D synthase
PGESTooltip Prostaglandin E synthase
HQL-79
PGFSTooltip Prostaglandin F synthase
PGI2STooltip Prostacyclin synthase
TXASTooltip Thromboxane A synthase
Others
See also
Receptor/signaling modulators
Leukotriene signaling modulators