FLUCONAZOLE
Background and Date of Approval
Fluconazole was patented by Pfizer in 1981 and introduced to the market in 1988. This triazole antifungal represented a significant development, demonstrating strong efficacy and an improved safety profile compared to earlier antifungal agents. It received U.S. FDA approval in 1990 for treating various fungal infections, including vaginal candidiasis, oral and oesophageal thrush, and systemic candidiasis. Fluconazole has been included in the WHO's List of Essential Medicines, underscoring its role in global healthcare.
Uses
Fluconazole is used to treat: Vaginal yeast infections Oral thrush (mouth infections) Oesophageal fungal infections Systemic fungal infections (affecting organs like the lungs, brain, or bloodstream)
Side Effects
Common (usually mild and temporary): Nausea or upset stomach Headache Dizziness Diarrhea Skin rash (mild) Changes in taste Mild abdominal pain Serious (less common, seek medical help): Severe skin reactions like blistering or peeling skin (Stevens-Johnson syndrome) Yellowing of the skin or eyes (jaundice), which may indicate liver problems Dark urine or pale stools, signs of liver issues Severe allergic reactions: swelling of the face, lips, tongue, or difficulty breathing Seizures (very rare) Irregular heartbeat (QT prolongation) Severe fatigue or unusual bruising (possible blood-related effects) Most people tolerate the medicine well, but any unexpected or worsening symptoms should be reported right away.
Warnings
Inform your doctor if you have liver problems, kidney disease, or heart rhythm issues (QT prolongation). Do not use during pregnancy unless prescribed, especially at high doses, due to the potential risk to the baby. Breastfeeding women should consult a doctor before use. May cause dizziness — avoid driving or using heavy machinery if you feel lightheaded. Long-term use may require regular liver function tests. Avoid alcohol during treatment to lower the risk of liver side effects.
Precautions
Inform your doctor about any history of liver, kidney, or heart conditions before starting the medicine. Pregnant or breastfeeding women should use Fluconazole only if advised by a doctor. Avoid alcohol during treatment to reduce liver strain. Monitor for side effects like rash, yellowing of the skin, or unusual tiredness, and report them immediately to your doctor. If you experience dizziness, avoid driving or using heavy machinery until you feel normal. For children or elderly patients, doses should be adjusted by the doctor as needed.
References
Ameish Govindarajan; Karlyle G. Bistas; Curtis J. Ingold; Preeti Patel; Ayham Aboeedhttps:// www.ncbi.nlm.nih.gov/books/NBK537158/ KD Tripathi, Essentials of Medical Pharmacology, Antifungal drugs, 7th edition, 2013, 787-788. Pharmacokinetics of Fluconazole tablets administered to healthy subjects Afaq Mahde Ammoo1 , Duaa Jaafar Jaber Al-Tamimi2 , Mustafa Ihssan Abbas Al-Mahroos3 , Mariam Jaafar Jaber Al-Tamimi2 , Jaafar Jaber Ibraheem4 https://japer.in/storage/files/article/6e0bd7b5-1936-4067-9b78-3ac3c7d1325a-2zhkATsreYZhF2IM/japer-vol-11-iss-2-92-99-8012.pdf Journal for Research in Applied Sciences and Biotechnology 2(3):41-43 DOI: 10.55544/jrasb.2.3.6 https://www.researchgate.net/publication/371570301_A_Review_on_Fluconazole
Frequently Asked Questions
What is Fluconazole?
Fluconazole NPP is an antifungal medicine used to treat and prevent fungal infections in different parts of the body. It belongs to a group of medicines called azole antifungals. Fluconazole works by stopping the growth of fungi by interfering with their cell membranes.
What are the possible side effects of Fluconazole?
Fluconazole NPP can cause some side effects. Common side effects are usually mild and may include feeling sick (nausea), headache, dizziness, diarrhoea, stomach pain, skin rash, or a change in taste. These often go away on their own. In rare cases, serious side effects can happen, like allergic reactions (rash, swelling, or trouble breathing), skin peeling, yellowing of the skin or eyes, dark urine, or chest pain from irregular heartbeat. If you have any serious problems or feel very unwell, stop taking the medicine and see your doctor straight away.
Can Fluconazole be used in pediatric patients?Â
Fluconazole NPP can be given to children if the doctor recommends it. It helps treat fungal infections like mouth thrush, skin infections, or more serious infections inside the body. The dose depends on the child’s age and weight, and it’s important to follow the doctor’s advice. Fluconazole is usually safe for children, but it can sometimes cause stomach pain, rash, or changes in liver function, especially if used for a long time. Always talk to your doctor before giving this medicine to a child and tell the doctor right away if you notice any side effects.
Why is Fluconazole less toxic?
Fluconazole NPP is considered less toxic because it is highly selective in how it works. It mainly targets fungal cells by blocking the production of ergosterol, which is essential for fungal cell membranes. This action does not significantly affect human cells, making it safer for the body.
What are the advantages of using Fluconazole over other antifungal medications?
It is used to treat a wide range of fungal infections, including oral thrush, vaginal yeast infections, skin infections, and more serious infections inside the body. One of its main benefits is that it can be taken once a day, making it simple for patients to follow. Fluconazole is also well-absorbed in the body and can be taken with or without food. Compared to older antifungal drugs, it usually causes fewer side effects and is considered safer for long-term use, especially for the liver.