QT prolongation Torsades de pointes Alopecia Anaphylactic reactions Angioedema Cholestasis Dizziness Dyspnea Hepatic failure Hepatitis Hypertriglyceridemia Hypokalemia Increased alkaline phosphatase Increased ALT/AST Jaundice Leukopenia Pallor Seizures Stevens-Johnson syndrome Taste perversion Thrombocytopenia Toxic epidermal necrolysis Hypersensitivity to other azoles Use caution in proarrhythmic conditions and renal impairment Use extreme caution or avoid in congenital long-QT patients and patients with conditions that increase QT-prolongation risk Fluconazole inhibits CYP2C9, CYP2C19, and CYP3A4 isoenzymes; coadministration with drugs that are substrates if these isoenzymes may be contraindicated or warrant dosage modifications Capsules contain lactose and should not be given to patients with rare hereditary problems of galactose intolerance, Lapp lactase deficiency, or glucose-galactose malabsorption Powder for oral suspension contains sucrose and should not be used in patients with hereditary fructose, glucose/galactose malabsorption or sucrase-isomaltase deficiency Syrup contains glycerol; may cause headache, stomach upset, and diarrhea Hepatotoxicity reported with use; use with caution in patients with hepatic impairment Rare exfoliative skin disorders reported; monitor closely if rash develops and discontinue if it progresses When driving vehicles or operating machines, it should be taken into account that dizziness or seizures may occasionally occur Candida krusei is inherently resistant Convenience and efficacy of single dose oral tablet of fluconazole regimen for the treatment of vaginal yeast infections should be weighed against acceptability of higher incidence of drug related adverse events with fluconazole (26%) versus intravaginal agents (16%) If drug is used during pregnancy or if patient becomes pregnant while taking the drug, patient should be informed of potential hazard to fetus; effective contraceptive measures should be considered in women of child-bearing potential who are being treated with 400 to 800 mg/day and should continue throughout the treatment period and for approximately 1 week (5 to 6 half-lives) after the final dose Highly selective inhibitor of fungal cytochrome P-450-dependent enzyme lanosterol 14-alpha-demethylase Subsequent loss of normal sterols correlates with accumulation of 14 alpha-methyl sterols in fungi and may be responsible for the fungistatic activity of fluconazole Additive: TMP-SMX Y-site: Amphotericin B, amphotericin B cholesteryl sulfate, ampicillin, calcium gluconate, cefotaxime, ceftazidime(? ), ceftriaxone, cefuroxime, chloramphenicol, clindamycin, co-trimoxazole, diazepam, digoxin, erythromycin lactobionate, furosemide, haloperidol, hydroxyzine, imipenem/cilastatin, pentamidine, piperacillin, ticarcillin, TMP-SMX Solution: D5W, LR Additive: Acyclovir, amikacin, amphotericin B, cefazolin, ceftazidime, ciprofloxacin, clindamycin, gentamicin, heparin, meropenem, metronidazole, morphine, piperacillin, potassium chloride, ranitidine with ondansetron, theophylline Y-site: Acyclovir, aldesleukin, allopurinol, amifostine, amikacin, aminophylline, amiodarone, ampicillin-sulbactam, aztreonam, benztropine, bivalirudin, cefazolin, cefepime, cefotetan, cefoxitin, cefpirome, chlorpromazine, cimetidine, cisatracurium, dexamethasone sodium phosphate, dexmedetomidine, diltiazem, diphenhydramine, dobutamine, docetaxel, dopamine, doxorubicin liposomal, droperidol, etoposide PO4, famotidine, fenoldopam, filgrastim, fludarabine, foscarnet, ganciclovir, gatifloxacin, gemcitabine, gentamicin, granisetron, heparin, hetastarch, hydrocortisone, immune globulin, leucovorin, linezolid, lorazepam, melphalan, meperidine, meropenem, metoclopramide, metronidazole, midazolam, morphine, nafcillin, nitroglycerin, ondansetron, oxacillin, paclitaxel, pancuronium, penicillin G, phenytoin, piperacillin-tazobactam, prochlorperazine, promethazine, propofol, quinupristin-dalfopristin, ranitidine, remifentanil, sargramostim, tacrolimus, teniposide, theophylline, thiotepa, ticarcillin-clavulanate, tobramycin, vancomycin, vecuronium, vinorelbine, zidovudine Tablets: Store below 86° F (30° C) Dry powder: Store below 86° F (30° C); reconstituted suspension should be stored between 86° F (30° C) and 41° F (5° C), and unused portion should be discarded after 2 weeks; protect from freezing Injection (glass bottles): Store between 86° F (30° C) and 41° F (5° C); protect from freezing Injection (Viaflex Plus plastic containers): Store between 77° F (25° C) and 41° F (5° C); protect from freezing The above information is provided for general informational and educational purposes only. Individual plans may vary and formulary information changes. Contact the applicable plan provider for the most current information. In New Zealand, fluconazole is available as 50 mg, 150 mg and 200 mg capsules on prescription (Diflucan®). There is also a 2 mg/ml injection for intravenous use. In New Zealand, Pharmaceutical Schedule subsidy of the capsules requires Specialist recommendation. Fluconazole binds to the fungal p450 enzymes and stops the cells making ergosterol, the main component of the cell wall. Fluconazole is well absorbed orally with or without food. It takes 22 to 30 hours for half of the medication to be cleared from the blood stream and may take several days of continuous treatment to reach a steady concentration. The drug is eliminated unchanged in the urine so doses should be reduced if there is kidney disease. For versicolor, either 50 mg daily or 150 mg once weekly is taken for two to six weeks.
How to use Fluconazole. Read the Patient Information Leaflet if available from your pharmacist before you start taking fluconazole and each time you get a refill. If you have any questions, ask. Jan 5, 2016. This nationwide, register-based, matched-cohort study evaluates the potential association between fluconazole exposure during pregnancy.