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Ancobon Side Effects Center
Medical Editor: John P. Cunha, DO, FACOEP
Ancobon (flucytosine) is used to treat serious fungal infections of the blood, lungs, heart, central nervous system, and urinary tract. It is an antifungal medication. This medication is available in generic form. Common side effects include nausea, vomiting, or diarrhea.
The usual dosage of Ancobon is 50 to 150 mg/kg/day administered in divided doses at 6-hour intervals. Nausea or vomiting may be reduced or avoided if the capsules are given a few at a time over a 15-minute period. Ancobon may interact with amphotericin B, or cytosine. Tell your doctor all medications and supplements you use. During pregnancy, Ancobon should be used only when prescribed. It is not recommended for use during the first 3 months of pregnancy. It may harm a fetus. It is unknown if this drug passes into breast milk. It may have undesirable effects on a nursing infant. Breastfeeding while using this drug is not recommended.
Our Ancobon (flucytosine) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
What is Patient Information in Detail?
Easy-to-read and understand detailed drug information and pill images for the patient or caregiver from Cerner Multum.
Ancobon in Detail - Patient Information: Side Effects
If you experience any of the following serious side effects, stop taking flucytosine and seek emergency medical attention or contact your doctor immediately:
- an allergic reaction (difficulty breathing; closing of the throat; swelling of the lips, tongue, or face; or hives);
- chest pain;
- yellowing of the skin or eyes;
- little or no urine;
- confusion or hallucinations;
- numbness or tingling; or
- hearing loss.
Other, less serious side effects may be more likely to occur. Continue to take flucytosine and talk to your doctor if you experience
- nausea, vomiting, decreased appetite, or diarrhea;
- a dry mouth;
- sedation; or
- weakness or poor coordination.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088. You may report side effects to FDA at 1-800-FDA-1088.
Read the entire detailed patient monograph for Ancobon (Flucytosine) »
What is Patient Information Overview?
A concise overview of the drug for the patient or caregiver from First DataBank.
Ancobon Overview - Patient Information: Side Effects
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor immediately if any of these unlikely but serious side effects occur: change in the amount of urine, signs of liver problems (such as persistent nausea/vomiting, stomach/abdominal pain, dark urine, yellowing eyes/skin), signs of anemia (such as unusual tiredness, fast breathing, pale skin, fast heartbeat), signs of infection (such as fever, chills, cough, persistent sore throat), signs of bleeding (such as easy bruising/bleeding, nose bleeds, bleeding gums, bloody/black/tarry stools, vomit that looks like coffee grounds), muscle weakness/cramping.
A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Read the entire patient information overview for Ancobon (Flucytosine)»
What is Prescribing information?
The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.
Ancobon FDA Prescribing Information: Side Effects
The adverse reactions which have occurred during treatment with Ancobon (flucytosine) are grouped according to organ system affected.
Gastrointestinal: Nausea, emesis, abdominal pain, diarrhea, anorexia, dry mouth, duodenal ulcer, gastrointestinal hemorrhage, acute hepatic injury with possible fatal outcome in debilitated patients, hepatic dysfunction, jaundice, ulcerative colitis, bilirubin elevation, increased hepatic enzymes.
Genitourinary: Azotemia, creatinine and BUN elevation, crystalluria, renal failure.
Read the entire FDA prescribing information for Ancobon (Flucytosine) »
Additional Ancobon Information
Ancobon - User Reviews
Ancobon User Reviews
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Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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