Fluconazole

General

  • Type: Antifungal
  • Dosage Forms: IV; PO
  • Common Trade Names: Diflucan

Adult Dosing

General

Candidiasis, oropharyngeal/esophageal

  • 100mg PO qday x 2 week to prevent relapse

Candida vaginitis

  • Uncomplicated: 150mg PO x 1

Pediatric Dosing

Candidiasis, oropharyngeal/esophageal:

  • > 14 days old: 6mg/kg PO x 1, then 3mg/kg q24h x 7-14 days, max: 100mg/day

Tinea Capitis: > 14 days old: 3-6mg/kg PO q24h x 6 weeks

Special Populations

  • Pregnancy Rating: D
  • Lactation Risk Categories: safety unknown
  • Renal Dosing
    • Adult:CrCrl < 50, give usual loading dose x 1 then decrease dose 50%
    • Pediatric: CrCrl < 50, give usual loading dose x 1 then decrease dose 50%
  • Hepatic Dosing
    • Adult: not defined
    • Pediatric: not defined

Contraindications

  • Allergy to class/drug

Adverse Reactions

Serious

  • hepatotoxicity
  • seizures
  • leukopenia
  • thrombocytopenia
  • anaphylaxis
  • steven-johnson syndrome
  • QT prolongation

Common

  • Nausea
  • Rash
  • Headache
  • vomiting
  • diarrhea
  • Transaminitis


Pharmacology

  • Half-life: 30 hour
  • Metabolism: Liver
  • Excretion: urine
  • Mechanism of Action: inhibits cytochrome P450 and sterol c-14 alpha-demethylation