Diflucan (Fluconazole)

Ce este Diflucan (Fluconazole)?

Diflucan (fluconazole) is an oral antifungal prescription medicine widely used to treat infections caused by Candida species. It is approved by the European Medicines Agency (EMA) and is listed on the WHO Model List of Essential Medicines. In sexual health, it is most commonly prescribed as a single 150 mg capsule for uncomplicated vaginal candidiasis (vaginal thrush).

Fluconazole’s convenience — a single oral dose rather than a multi-day vaginal treatment — makes it one of the most prescribed antifungal medicines in Europe. It acts systemically, reaching the site of infection through the bloodstream and vaginal secretions.

Cum funcționează Diflucan (Fluconazole)?

Fluconazole belongs to the triazole class of antifungals and works by selectively inhibiting the fungal enzyme lanosterol 14-alpha-demethylase (also known as CYP51). This enzyme is essential for the conversion of lanosterol to ergosterol, the primary sterol component of the fungal cell membrane.

Without adequate ergosterol:

• Cell membrane integrity is compromised: The fungal membrane becomes permeable and structurally unstable
• Essential cellular functions fail: Transport of nutrients and maintenance of intracellular conditions break down
• Fungal growth halts: At lower concentrations, growth is inhibited (fungistatic); at higher concentrations, cell death occurs (fungicidal)

Fluconazole’s selectivity for fungal CYP51 over human CYP enzymes explains its generally good tolerability, though its effect on human CYP enzymes (particularly CYP2C9 and CYP3A4) at therapeutic doses does give rise to clinically significant drug interactions.

Pharmacokinetic advantages:

• Well absorbed orally (bioavailability >90%)
• Long plasma half-life (~30 hours) allows once-daily or single-dose treatment
• Widely distributed throughout body tissues and fluids, including vaginal secretions
• Primarily renally excreted unchanged

Pentru cine este indicat Diflucan (Fluconazole)?

Diflucan is indicated for adults with fungal infections caused by susceptible Candida species, including:

• Vaginal candidiasis (thrush): Single 150 mg oral dose for uncomplicated infections
• Oropharyngeal candidiasis (oral thrush): Typically 50–100 mg daily for 7–14 days
• Oesophageal candidiasis: Higher doses under specialist supervision
• Recurrent vulvovaginal candidiasis: Maintenance regimens (e.g., weekly fluconazole) may be prescribed for patients with four or more episodes per year
• Dermatophyte infections / tinea: Selected skin fungal infections under medical guidance

Not appropriate for:

• Patients with known allergy to fluconazole or other azole antifungals
• Pregnant women (especially first trimester)
• Patients with QT prolongation or taking medicines that prolong the QT interval
• Concurrent use of certain interacting medicines without specialist review

Dozaj

Indication	Dose	Duration
Uncomplicated vaginal candidiasis	150 mg	Single dose
Recurrent vaginal candidiasis (maintenance)	150 mg weekly	6 months (specialist guidance)
Oral thrush	50–100 mg once daily	7–14 days
Severe/systemic candidiasis	Higher doses	Specialist management

Diflucan capsules should be swallowed whole with water. They can be taken with or without food. No dose adjustment is required for body weight in most cases, but renal impairment may require dose reduction.

Efecte secundare

Diflucan is generally well tolerated at the 150 mg single dose used for vaginal candidiasis.

Efecte secundare frecvente (afectând 1 până la 10 din 100 de persoane)

• Headache
• Nausea
• Abdominal pain
• Diarrhoea
• Dizziness

Less common side effects

• Skin rash
• Elevated liver enzymes (particularly with prolonged or high-dose use)
• Taste disturbances
• Flatulence

Serious side effects (rare)

• Hepatotoxicity: Severe liver reactions including hepatitis and hepatic failure — risk increases with prolonged use and in patients with pre-existing liver disease
• Cardiac arrhythmias: QT prolongation and torsades de pointes — risk is higher when combined with other QT-prolonging medicines
• Serious allergic reactions: Including anaphylaxis and Stevens-Johnson syndrome (very rare)
• Adrenal insufficiency: Rare, reported with long-term high-dose use

Diflucan (Fluconazole) vs alternative

Treatment	Active Ingredient	Route	Dosing	Notes
Diflucan	Fluconazole	Oral	Single 150 mg dose	Convenient; drug interactions to consider
Canesten Gyno	Clotrimazole	Vaginal pessary	Single dose or 3–6 nights	No significant drug interactions; preferred in pregnancy
Nystan	Nystatin	Vaginal pessary	14 nights	Longer course; for azole-resistant cases
Itraconazole	Itraconazole	Oral	200 mg twice daily for 1 day	Alternative triazole

Diflucan vs Canesten Gyno: Both are effective for uncomplicated vaginal thrush. The choice often comes down to patient preference (oral vs vaginal), drug interactions, and suitability during pregnancy. Clotrimazole (Canesten Gyno) is preferred in pregnancy due to minimal systemic absorption.

Cum puteți obține Diflucan (Fluconazole) online în Europa

Diflucan (fluconazole) is a prescription-only medicine (POM) in most EU member states. It cannot legally be dispensed without a valid prescription from a licensed medical professional in these jurisdictions.

Prescrivia funcționează ca intermediar tehnologic: nu prescriem medicamente, nu angajăm medici și nu vindem medicamente. Platforma noastră conectează pacienții cu medici independenți înregistrați în UE, care pot efectua evaluări medicale online confidențiale.

Procesul este următorul:

1. Completați un chestionar medical: Describe your symptoms, relevant health history, and any medications you currently take.
2. Evaluarea medicului: An independent EU-registered doctor reviews your assessment. If fluconazole is clinically appropriate, they may issue a prescription.
3. Prescripție și livrare: The prescription is sent to a licensed EU pharmacy partner for dispensing and direct delivery.

Important: Prescrivia does not guarantee that a prescription will be issued. All prescribing decisions are made independently by qualified medical professionals.

Informații importante privind siguranța

Do not take Diflucan if you:

• Are pregnant or planning to become pregnant (particularly first trimester)
• Are allergic to fluconazole or other azole antifungals
• Are taking terfenadine, astemizole, cisapride, pimozide, quinidine, or erythromycin (serious cardiac interaction risk)

Tell your doctor before taking Diflucan if you:

• Are breastfeeding (fluconazole passes into breast milk)
• Have liver disease
• Have kidney disease (dose adjustment may be needed)
• Have a heart condition or are at risk of QT prolongation
• Are taking warfarin, statins, oral hypoglycaemics, ciclosporin, tacrolimus, or phenytoin
• Are taking any other prescription or over-the-counter medicines

Recurrent infections: Frequent vaginal candidiasis (four or more episodes per year) should prompt investigation by a doctor for underlying causes such as diabetes, immune system conditions, or antibiotic use patterns.

Surse

Informațiile medicale de pe această pagină se bazează pe următoarele surse:

• European Medicines Agency (EMA). Diflucan (fluconazole) — Summary of Product Characteristics. Available at: ema.europa.eu
• World Health Organization (WHO). WHO Model List of Essential Medicines. 22nd edition, 2021. who.int
• European STI Guidelines Editorial Board. 2018 European guideline on the management of vulvovaginal candidiasis. Journal of the European Academy of Dermatology and Venereology.

Acest conținut este revizuit periodic pentru a reflecta ghidurile clinice actualizate. Este furnizat exclusiv în scop informativ și nu constituie sfat medical. Consultați întotdeauna un profesionist medical calificat pentru sfaturi relevante pentru circumstanțele dumneavoastră individuale de sănătate.