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5-fluorocytosine

Structure via PubChem · Public domain (PubChem)

EntityQ238490· pop 24· linked from 132 articles

5-fluorocytosine

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Also known as fluorcytosine, flucytosine

Flucytosine, also known as 5-fluorocytosine (5-FC), is an antifungal medication. It is specifically used, together with amphotericin B, for serious Candida infections and cryptococcosis. It may be used by itself or with other antifungals for chromomycosis. Flucytosine is used by mouth and by injection into a vein.

Chemical data

Formula
C4H4FN3O
Molecular weight
129.09 g/mol
IUPAC name
6-amino-5-fluoro-1H-pyrimidin-2-one
SMILES
C1=NC(=O)NC(=C1F)N
InChIKey
XRECTZIEBJDKEO-UHFFFAOYSA-N
XLogP
-0.9
Polar surface area
67.5 Ų
H-bond donors
2
H-bond acceptors
3
Formal charge
0

via PubChem

Drug data · ChEMBL

Max clinical phase
Approved
Molecule type
Small molecule
First approval
1971
Admin. routes
oral
Indications
hepatocellular carcinoma, infection, anaplastic astrocytoma, anaplastic oligodendroglioma

via ChEMBL · EBI

Research

5,199 papers

via PubMed

Wikidata facts

Mass
129.034
Has use
medication
Show 8 more facts
chemical formula
C₄H₄FN₃O
subject has role
essential medicine
canonical SMILES
C1=NC(=O)NC(=C1F)N
World Health Organisation international non-proprietary name
flucytosine
Commons category
5-Fluorocytosine
found in taxon
Garcinia dulcis
legal status (medicine)
boxed warning
significant drug interaction
zidovudine
Sources (8)

via Wikidata · CC0

~8 min read

Encyclopedic overview

14 sections
Contents
  • Medical uses
  • Pregnancy and breastfeeding
  • Children
  • Side effects
  • Interactions
  • Overdose
  • Pharmacology
  • Mechanisms of action
  • Spectrum of susceptible fungi and resistance
  • Pharmacokinetic data
  • Economics
  • Other animals
  • References
  • External links

Flucytosine, also known as 5-fluorocytosine (5-FC), is an antifungal medication. It is specifically used, together with amphotericin B, for serious Candida infections and cryptococcosis. It may be used by itself or with other antifungals for chromomycosis. Flucytosine is used by mouth and by injection into a vein.

Common side effects include bone marrow suppression, loss of appetite, diarrhea, vomiting, and psychosis. Anaphylaxis and other allergic reactions occasionally occur. It is unclear if use in pregnancy is safe for the baby. Flucytosine is in the fluorinated pyrimidine analogue family of medications. It works by being converted into fluorouracil inside the fungus, which impairs its ability to make protein.

Excerpted from Wikipedia’s “5-fluorocytosine” article, available under the CC BY-SA 4.0 licence.