TheraRadar
Data updated: May 26, 2026

FLUCYTOSINE

Infectious Disease Approved 2011-06-28

FLUCYTOSINE is indicated for the treatment of Candidiasis; Cryptococcosis; Septicemia; Endocarditis; Urinary Tract Infection; Pulmonary Infection; Meningitis.

Source: FDA Label • LAURUS
7
Indications
--
Phase 3 Trials
14
Years on Market

Details

Status
Prescription
First Approved
2011-06-28
Routes
ORAL
Dosage Forms
CAPSULE

FLUCYTOSINE Approval History

2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
Original
New Indication
New Form
Label Update
28 FDA actions from 2011 to 2025
Jul 2025 ORIGINAL
Update
Feb 2025 SUPPL
Label · Labeling
Jan 2023 SUPPL
Label · Labeling

What FLUCYTOSINE Treats

7 indications

FLUCYTOSINE is approved for 7 conditions since its original approval in 2011. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Candidiasis
  • Cryptococcosis
  • Septicemia
  • Endocarditis
  • Urinary Tract Infection
  • Pulmonary Infection
  • Meningitis
Source: FDA Label

FLUCYTOSINE Boxed Warning

WARNING Use with extreme caution in patients with impaired renal function. Close monitoring of hematologic, renal and hepatic status of all patients is essential. These instructions should be thoroughly reviewed before administration of Flucytosine Capsules USP....

FLUCYTOSINE Competitive Set

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Filters applied: drops same-active-ingredient (505(b)(2) reformulations), route-mismatch (topical vs systemic), and cross-therapeutic-area matches in same-indication rings.

Drugs Similar to FLUCYTOSINE

3 of 20

FDA-approved drugs for similar conditions. Compare mechanisms and indications to understand treatment alternatives.

ANCOBON
FLUCYTOSINE
7 shared
BAUSCH
Shared indications:
CandidiasisCryptococcosisSepticemia +4 more
AMPICILLIN SODIUM
AMPICILLIN SODIUM
3 shared
WATSON LABS INC
Shared indications:
CEFUROXIME
CEFUROXIME
3 shared
Hikma
Shared indications:
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Clinical Trial Registry

3 trials
Trial Sponsor ID Phase Status Title
NCT06414512 results posted STUDY00017800 R01NS0863121 Ph 2 completed Optimizing the Dose of Flucytosine for the Treatment of Cryptococcal Meningitis
NCT02015819 results posted 13401 NCI-2013-02346, 13401 Ph 1 completed Genetically Modified Neural Stem Cells, Flucytosine, and Leucovorin for Treating Patients With Recurrent High-Grade Gliomas
NCT01172964 08002 NCI-2010-01388 Ph 1 completed A Pilot Feasibility Study of Oral 5-Fluorocytosine and Genetically-Modified Neural Stem Cells Expressing E.Coli Cytosine Deaminase for Treatment of Recurrent High Grade Gliomas
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Active Pipeline

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Ongoing clinical trials by development phase

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Key Completed Trials

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Completed studies with published results, ranked by significance

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Trial Timeline

Full development history with FDA approval milestones

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Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

FLUCYTOSINE FDA Label Details

Indications & Usage

FLUCYTOSINE is indicated for the treatment of Candidiasis; Cryptococcosis; Septicemia; Endocarditis; Urinary Tract Infection; Pulmonary Infection; Meningitis.

⚠️ BOXED WARNING

WARNING Use with extreme caution in patients with impaired renal function. Close monitoring of hematologic, renal and hepatic status of all patients is essential. These instructions should be thoroughly reviewed before administration of Flucytosine Capsules USP....

Looking for the branded version?

ANCOBON

Full clinical data, patents, trials, and competitive landscape for flucytosine.

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Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.