Fexinidazole

Fexinidazole
Clinical data
Other names
  • Fexinidazole Winthrop
  • HOE 239
License data
Routes of
administration		By mouth
ATC code
Legal status
Legal status
Identifiers
  • 1-Methyl-2-{[4-(methylsulfanyl)phenoxy]methyl}-5-nitro-1H-imidazole
CAS Number
PubChem CID
DrugBank
ChemSpider
UNII
KEGG
ChEMBL
CompTox Dashboard (EPA)
ECHA InfoCard100.207.619
Chemical and physical data
FormulaC12H13N3O3S
Molar mass279.31 g·mol−1
3D model (JSmol)
  • [O-] [N+](=O)c1cnc(n1C)COc2ccc(SC)cc2
  • InChI=1S/C12H13N3O3S/c1-14-11(13-7-12(14)15(16)17)8-18-9-3-5-10(19-2)6-4-9/h3-7H,8H2,1-2H3
  • Key:MIWWSGDADVMLTG-UHFFFAOYSA-N

Fexinidazole is a medication used to treat African trypanosomiasis (sleeping sickness) caused by Trypanosoma brucei gambiense. It is effective against both first and second stage disease. It is taken by mouth.

Common side effects include nausea, vomiting, headache, and trouble sleeping. Other side effects may include QT prolongation, psychosis, and low white blood cells. It is unclear if use during pregnancy or breast feeding is safe. Fexinidazole is in the antiparasitic and the nitroimidazole family of medications. It is believed to work by turning on certain enzymes within the parasites that result in their death.

Fexinidazole was first described in 1978. It was given a positive opinion by the European Medicines Agency in 2018. It is on the World Health Organization's List of Essential Medicines. Fexinidazole was developed for sleeping sickness by the Drugs for Neglected Diseases initiative in collaboration with Sanofi. Fexinidazole was approved for medical use in the United States in July 2021.

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