Key takeaways: Diflucan (fluconazole) treats and prevents certain fungal infections, such as vaginal yeast infections and meningitis, in adults and children. Typical Diflucan dosages for adults range from 50 mg to 400 mg per day. Dosages for children are typically based on body weight. Detailed dosage guidelines and administration information for Diflucan (fluconazole). Includes dose adjustments, warnings and precautions. Medically reviewed guide to fluconazole (Diflucan) dosages. Find typical strengths for adults and children, treatment lengths, and tips for taking oral tablets safely. The dose is usually 12 milligrams (mg) per kilogram (kg) of body weight on the first day, followed by 6 mg per kg of body weight once a day, for at least 10 to 12 weeks. Initially 400 mg for 1 dose, to be given on first day, then 200–400 mg once daily, dose can be increased to 800 mg once daily in life-threatening infections, treatment continued according to response, usually for at least 6–8 weeks. Diflucan (Fluconazole) may treat, side effects, dosage, drug interactions, warnings, patient labeling, reviews, and related medications including drug comparison and health resources. The recommended dosage of DIFLUCAN for esophageal candidiasis is 200 mg on the first day, followed by 100 mg once daily. Doses up to 400 mg/day may be used, based on medical judgment of the patient's response to therapy. Medscape - Candidia infection dosing for Diflucan (fluconazole), frequency-based adverse effects, comprehensive interactions, contraindications, pregnancy & lactation schedules, and cost. Since Diflucan is eliminated primarily through the kidneys, dose adjustments are necessary for patients with renal dysfunction. Typically, the dose or dosing interval is reduced to prevent accumulation and toxicity. Detailed Fluconazole dosage information for adults and children. Includes dosages for Vaginal Candidiasis, Onychomycosis - Toenail, Oral Thrush and more; plus renal, liver and dialysis adjustments.