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Fluocytosine Brand names, Fluocytosine Analogs

Fluocytosine Brand Names Mixture

  • No information avaliable

Fluocytosine Chemical_Formula


Fluocytosine RX_link


Fluocytosine fda sheet

Fluocytosine FDA

Fluocytosine msds (material safety sheet)

Fluocytosine MSDS

Fluocytosine Synthesis Reference

No information avaliable

Fluocytosine Molecular Weight

129.093 g/mol

Fluocytosine Melting Point

296 oC

Fluocytosine H2O Solubility

10.5 g/L

Fluocytosine State


Fluocytosine LogP


Fluocytosine Dosage Forms

Capsule (250mg and 500mg)

Fluocytosine Indication

For the treatment (in combination with amphotericin B) of serious infections caused by susceptible strains of Candida (septicemia, endocarditis and urinary system infections) and/or Cryptococcus (meningitis and pulmonary infections).

Fluocytosine Pharmacology

Flucytosine is an antimetabolite that acts as an antifungal agent with in vitro and in vivo activity against Candida and Cryptococcus. Flucytosine enters the fungal cell via cytosine permease; thus, flucytosine is metabolized to 5-fluorouracil within fungal organisms. The 5-fluorouracil is extensively incorporated into fungal RNA and inhibits synthesis of both DNA and RNA. The result is unbalanced growth and death of the fungal organism. Antifungal synergism between Ancobon and polyene antibiotics, particularly amphotericin B, has been reported.

Fluocytosine Absorption

Rapidly and virtually completely absorbed following oral administration. Bioavailability 78% to 89%.

Fluocytosine side effects and Toxicity

Oral, rat: LD50 = >15 gm/kg.

Fluocytosine Patient Information

Bone marrow toxicity can cause anemia, leukopenia, pancytopenia, thrombocytopenia and, rarely, agranulocytosis and eosinophilia. Other side effects can be nausea, vomiting, anorexia, bloating, diarrhea, and, rarely, bowel perforation. Reversible elevations in liver enzymes have been reported. Occasionally, rashes may be a side effect. Some side effects that have only been seen very rarely are confusion, hallucinations, headaches, sedation, vertigo and liver enlargement.There has also been a case of severe allergic-type reaction to the drug in at least one person with AIDS. This type of reaction is called anaphylaxis.

Fluocytosine Organisms Affected

Yeast and other fungi