Diflucan 150mg

— THERAPEUTIC CATEGORIES —
  • Vaginal infections

Diflucan 150mg Generic Name & Formulations

General Description

Fluconazole 150mg; tabs.

Pharmacological Class

Azole antifungal.

How Supplied

Tabs—1

Manufacturer

Generic Availability

YES

Mechanism of Action

Fluconazole is a highly selective inhibitor of fungal CYP450 dependent enzyme lanosterol 14-α-demethylase. This enzyme functions to convert lanosterol to ergosterol. The subsequent loss of normal sterols correlates with the accumulation of 14-α-methyl sterols in fungi and may be responsible for the fungistatic activity of fluconazole.

Diflucan 150mg Indications

Indications

Vaginal candidiasis.

Diflucan 150mg Dosage and Administration

Adult

150mg orally once.

Children

Not recommended.

Diflucan 150mg Contraindications

Contraindications

Concomitant drugs known to prolong the QT interval and metabolized by CYP3A4 (eg, erythromycin, pimozide, quinidine).

Diflucan 150mg Boxed Warnings

Not Applicable

Diflucan 150mg Warnings/Precautions

Warnings/Precautions

Risk of serious hepatotoxicity; monitor liver function during therapy and for signs/symptoms of hepatic injury; discontinue if occurs. Proarrhythmic conditions. Monitor closely for skin rashes; discontinue if lesions progress. Allergy to other azoles. Renal or hepatic impairment. Elderly. Pregnancy: avoid; may cause rare congenital anomalies in infants exposed in-utero during 1st trimester. Nursing mothers.

Diflucan 150mg Pharmacokinetics

Absorption

Oral bioavailability: >90%. Peak plasma concentrations are reached between 1–2 hours.

Distribution

Apparent volume of distribution is approximately that of total body water. Plasma protein bound: 11–12%.

Metabolism

Hepatic.

Elimination

Renal (~91%). Half-life: ~30 hours (range: 20–50 hours).

Diflucan 150mg Interactions

Interactions

See Contraindications. Avoid concomitant voriconazole; if needed, monitor closely esp. when given within 24hrs after fluconazole. Caution with amiodarone (esp. with high-dose fluconazole), other drugs metabolized by CYP2C9 and CYP3A4 with a narrow therapeutic window. Potentiates abrocitinib, lemborexant; avoid. Potentiates ivacaftor, fixed-dose ivacaftor combinations (eg, tezacaftor/ivacaftor, ivacaftor/tezacaftor/elexacaftor), warfarin, sulfonylureas, oral midazolam, theophylline, tofacitinib, tolvaptan, triazolam, alfentanil, amitriptyline, nortriptyline, saquinavir, sirolimus, carbamazepine, NSAIDs, zidovudine; monitor and adjust dose as necessary. May increase levels of phenytoin, halofantrine, ibrutinib, methadone, rifabutin, tacrolimus, vinca alkaloids, cyclosporine, fentanyl, CCBs, losartan, lurasidone; monitor. Concomitant celecoxib: reduce celecoxib dose by half. Increased risk of myopathy/rhabdomyolysis with concomitant HMG-CoA reductase inhibitors; may need dose reduction of these statins. Avoid concomitant lurasidone, olaparib; reduce its dose if unavoidable. May be potentiated by diuretics. May be antagonized by oral cimetidine, rifampin. Concomitant prednisone: monitor for adrenal cortex insufficiency when fluconazole stopped. CNS effects with Vitamin A. Oral contraceptives: see full labeling. Avoid other hepatotoxic drugs.

Diflucan 150mg Adverse Reactions

Adverse Reactions

Nausea, headache, rash, vomiting, abdominal pain, diarrhea, dizziness; hepatotoxicity, adrenal insufficiency; rare: anaphylaxis, exfoliative dermatitis, QT prolongation, Torsade de pointes.

Diflucan 150mg Clinical Trials

See Literature

Diflucan 150mg Note

Not Applicable

Diflucan 150mg Patient Counseling

See Literature

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