Dosages of Antifungal Medications

Drug

Dosage

Itraconazole

5–10 mg/kg, PO, q 24 h

Ketoconazole

10 mg/kg, PO, q 24 h; 20 mg/kg, PO, q 48 h

Fluconazole

10–20 mg/kg, PO, q 12 h

Terbinafine

10–30 mg/kg, PO, q 24 h

Griseofulvin

Microsize: 25–60 mg/kg, PO, q 12 h

Ultramicrosize: 2.5–15 mg/kg, PO, q 12 h

Amphotericin B

Dogs: 0.25–0.75 mg/kg, IV, 3 times per week to total cumulative dose of 4–8 mg/kg or until azotemia develops

Cats: 0.1–0.25 mg/kg, IV, 3 times per week to cumulative dose of 4–6 mg/kg

Flucytosine

25–50 mg/kg, PO, q 6–8 h

Potassium iodide

Dogs: 40 mg/kg, PO with food, q 12–24 h

Cats: 20 mg/kg, PO with food, q 12–24 h