Flucytosine

Urinary tract infection, Endocarditis, Septicemia + 5 more

Treatment

13 FDA approvals

1 Active Study for Flucytosine

What is Flucytosine

Flucytosine

The Generic name of this drug

Treatment Summary

Flucytosine is a medication used to treat fungal infections. It is a type of cytosine analog, which is a synthetic molecule that is similar to the natural cytosine molecule found in cells.

Ancobon

is the brand name

image of different drug pills on a surface

Flucytosine Overview & Background

Brand Name

Generic Name

First FDA Approval

How many FDA approvals?

Ancobon

Flucytosine

1971

38

Approved as Treatment by the FDA

Flucytosine, also called Ancobon, is approved by the FDA for 13 uses which include Endocarditis and Candidiasis, Systemic .

Endocarditis

Candidiasis, Systemic

Used to treat Candidiasis, Systemic in combination with Amphotericin B

Yeast Infection

Fungal endocarditis

Urinary tract infection fungal

Meningitis, Fungal

Septicemia

disseminated Cryptococcosis

Used to treat disseminated Cryptococcosis in combination with Amphotericin B

Candidiasis

Meningitis, Fungal

Cryptococcosis

Used to treat disseminated Cryptococcosis in combination with Amphotericin B

Cryptococcosis

Urinary tract infection

Effectiveness

How Flucytosine Affects Patients

Flucytosine is a medicine used to treat fungal infections caused by Candida or Cryptococcus. It works by entering fungal cells and disrupting the production of DNA and RNA, leading to the death of the fungus. It is often used in combination with another antifungal medication called amphotericin B, which has been shown to increase the effectiveness of Flucytosine.

How Flucytosine works in the body

Flucytosine works against fungal infections in two ways. First, it prevents fungal organisms from absorbing necessary compounds like purines and pyrimidines. Second, it converts to 5-fluorouracil inside the fungal cell, which disrupts the cell's ability to create DNA and RNA. This leads to an unbalanced growth that eventually kills the fungal organism. It is also thought to inhibit an enzyme in fungi called thymidylate synthase.

When to interrupt dosage

The recommended dosage of Flucytosine is contingent upon the indicated condition, such as Urinary tract infection, Cryptococcosis and Infections, Fungal. The quantity of dosage is contingent upon the method of administration recorded in the table below.

Condition

Dosage

Administration

Urinary tract infection

, 500.0 mg, 250.0 mg

Oral, , Capsule - Oral, Capsule, Tablet - Oral, Tablet

Septicemia

, 500.0 mg, 250.0 mg

Oral, , Capsule - Oral, Capsule, Tablet - Oral, Tablet

Yeast Infection

, 500.0 mg, 250.0 mg

Oral, , Capsule - Oral, Capsule, Tablet - Oral, Tablet

Cryptococcosis

, 500.0 mg, 250.0 mg

Oral, , Capsule - Oral, Capsule, Tablet - Oral, Tablet

Cryptococcosis

, 500.0 mg, 250.0 mg

Oral, , Capsule - Oral, Capsule, Tablet - Oral, Tablet

Candidiasis, Systemic

, 500.0 mg, 250.0 mg

Oral, , Capsule - Oral, Capsule, Tablet - Oral, Tablet

Endocarditis

, 500.0 mg, 250.0 mg

Oral, , Capsule - Oral, Capsule, Tablet - Oral, Tablet

Meningitis, Fungal

, 500.0 mg, 250.0 mg

Oral, , Capsule - Oral, Capsule, Tablet - Oral, Tablet

Warnings

There are 20 known major drug interactions with Flucytosine.

Common Flucytosine Drug Interactions

Drug Name

Risk Level

Description

2-Methoxyethanol

Major

The risk or severity of adverse effects can be increased when Flucytosine is combined with 2-Methoxyethanol.

9-(N-methyl-L-isoleucine)-cyclosporin A

Major

The risk or severity of adverse effects can be increased when Flucytosine is combined with 9-(N-methyl-L-isoleucine)-cyclosporin A.

Abatacept

Major

The risk or severity of adverse effects can be increased when Flucytosine is combined with Abatacept.

Abetimus

Major

The risk or severity of adverse effects can be increased when Flucytosine is combined with Abetimus.

Acteoside

Major

The risk or severity of adverse effects can be increased when Flucytosine is combined with Acteoside.

Flucytosine Toxicity & Overdose Risk

The lowest lethal dose of the drug for rats is greater than 15 grams per kilogram.

image of a doctor in a lab doing drug, clinical research

Flucytosine Novel Uses: Which Conditions Have a Clinical Trial Featuring Flucytosine?

There are currently 7 active trials examining the potential of Flucytosine to treat Endocarditis, Meningitis, Fungal and Yeast Infections.

Condition

Clinical Trials

Trial Phases

Urinary tract infection

0 Actively Recruiting

Septicemia

1 Actively Recruiting

Not Applicable

Yeast Infection

0 Actively Recruiting

Endocarditis

0 Actively Recruiting

Cryptococcosis

0 Actively Recruiting

Candidiasis, Systemic

0 Actively Recruiting

Cryptococcosis

0 Actively Recruiting

Meningitis, Fungal

0 Actively Recruiting

Patient Q&A Section about flucytosine

These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.

What is another name for flucytosine?

"Ancobon is an antifungal medication used to treat serious fungal infections of the blood, lungs, heart, central nervous system, and urinary tract. Ancobon is available as a generic medication."

Answered by AI

What are the side effects of flucytosine?

"The side effects of the medication include nausea, vomiting, loss of appetite, diarrhea, headache, dizziness, numbness, tingling, or burning pain in your hands or feet, dry mouth, or skin rash."

Answered by AI

What is flucytosine used for?

"Flucytosine is a medication used in treating systemic and severe candida and cryptococcus infections. It works by inhibiting the growth of fungi."

Answered by AI

What kind of antifungal is flucytosine?

"Flucytosine acts as an antifungal agent against Candida species and C. neoformans, but not against other commonly encountered fungi. However, resistance to Flucytosine develops quickly when it is used as monotherapy, limiting its use to combination therapy."

Answered by AI

Clinical Trials for Flucytosine