Fluconazole: Brands, Price & Uses in Bangladesh
Fluconazole is a triazole antifungal used to treat and prevent a range of fungal (candidal and cryptococcal) infections.
About Fluconazole
Indications of Fluconazole
Fluconazole is a triazole antifungal used to treat and prevent a range of fungal (candidal and cryptococcal) infections. Its indications can be classified by strength of evidence as follows:
Established / FDA-approved uses
- Vaginal candidiasis (vulvovaginal candidiasis)
- Oropharyngeal and esophageal candidiasis
- Systemic Candida infections, including candidemia, disseminated candidiasis, and candida infections of the peritoneum, endocardium, and urinary tract
- Cryptococcal meningitis (including as maintenance therapy to prevent relapse in patients with AIDS)
- Prophylaxis of candidiasis in patients undergoing bone marrow transplantation who are expected to have neutropenia following cytotoxic chemotherapy or radiation therapy
Guideline-supported / commonly used indications
- Dermatophyte infections such as tinea corporis, tinea cruris, tinea pedis, and tinea versicolor (used based on clinical guidelines and long-standing clinical practice, though not all are separately listed in every regulatory label)
- Prevention of recurrent fungal infections in immunocompromised patients (e.g. HIV/AIDS, organ transplant recipients) at increased risk
Off-label uses
- Fungal urinary tract infections and prosthetic device-related candidiasis in select patients, under specialist guidance
Use of Fluconazole should always be guided by a physician's diagnosis and, where possible, fungal culture/susceptibility results.
Dosage & Administration of Fluconazole
Fluconazole may be given orally (capsule/tablet or oral suspension) or by slow intravenous infusion; the oral and intravenous doses are the same because of high oral bioavailability. Fluconazole may be taken with or without food.
| Indication | Typical Adult Dose |
|---|---|
| Vaginal candidiasis | 150 mg as a single oral dose |
| Oropharyngeal candidiasis | 200 mg on day 1, then 100 mg once daily for at least 2 weeks |
| Esophageal candidiasis | 200 mg on day 1, then 100 mg once daily (up to 400 mg/day if needed) for a minimum of 3 weeks and at least 2 weeks after symptom resolution |
| Systemic candidiasis (e.g. candidemia) | Usually 400 mg on day 1, then 200-400 mg once daily; duration guided by clinical response |
| Cryptococcal meningitis (treatment) | 400 mg on day 1, then 200-400 mg once daily for 10-12 weeks after cerebrospinal fluid culture becomes negative |
| Cryptococcal meningitis (suppressive/maintenance therapy) | 200 mg once daily, long-term, in appropriate patients |
| Prophylaxis in bone marrow transplant recipients | 400 mg once daily, started before anticipated neutropenia and continued for 7 days after neutrophil count recovery |
| Dermatophyte infections (e.g. tinea corporis/cruris/pedis) | 150 mg once weekly for 2-6 weeks, per physician guidance |
Dose adjustment is required in patients with renal impairment (see Use in Special Populations).
Antimicrobial stewardship: Take Fluconazole exactly as prescribed by your physician; do not stop, extend, skip doses, or share this medicine with others without medical advice, even if symptoms improve before the course is finished.
Side Effects of Fluconazole
Most patients tolerate Fluconazole well. Reported side effects include:
Common
- Headache
- Nausea, abdominal pain, diarrhea, vomiting
- Dizziness
- Rash
- Altered taste
Less common / serious (seek medical attention)
- Signs of liver injury: yellowing of skin/eyes, dark urine, unusual fatigue, loss of appetite (see Precautions and Warnings)
- Severe skin reactions such as Stevens-Johnson syndrome or toxic epidermal necrolysis (rare)
- Signs of an allergic reaction, including anaphylaxis and angioedema (rare)
- Palpitations or irregular heartbeat, suggestive of QT prolongation (rare)
- Low blood counts (leukopenia, thrombocytopenia) with prolonged use
Patients should seek prompt medical attention if serious symptoms occur while taking Fluconazole.
Contraindications of Fluconazole
Fluconazole is contraindicated in:
- Patients with known hypersensitivity to Fluconazole, other azole antifungal agents, or any excipient of the formulation.
- Concurrent use with drugs that both prolong the QT interval and are metabolized by CYP3A4 (e.g. cisapride, astemizole, pimozide, quinidine), because of the risk of serious ventricular arrhythmias including torsades de pointes.
- Concurrent use with terfenadine when Fluconazole is given at doses of 400 mg/day or higher.
Frequently Asked Questions about Fluconazole
What is Fluconazole used for?
How should I take Fluconazole?
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What are the common side effects of Fluconazole?
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What should I do if I miss a dose or take too much Fluconazole?
Disclaimer
The information provided is accurate to the best of our knowledge, but it does not replace professional medical advice. We cannot guarantee its completeness or accuracy, and the absence of specific information about a drug should not be taken as an endorsement. We are not responsible for any consequences arising from this information, so please consult a healthcare professional for any concerns or questions.