Griseofulvin Dosage Calculator

Griseofulvin Dosage for Dogs, Cats, Horses By Weight
Trade Names: Fulvicin U/F, Grisactin, Grifulvin, Fulvicin P/G, Gris-PEG
Functional classification: Antifungal

Griseofulvin Dosing for Dogs, Cats, Horses By Weight

Important Safety Information

For dogs: Start with 25 mg/kg q12h PO and then increase to 50-60 mg/kg q12h PO for refractory cases.

For horses: Treatment should be continued for minimum of 10 days.

Use with caution in pregnant animals and monitor liver function during treatment.

Reference Source

Saunders Handbook of VETERINARY DRUGS, Page 394-395

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Standard Dosage Guidelines

Small Animal Dosage

Species Formulation Dosage Frequency
Dogs Microsize 25-60 mg/kg q12h PO
Ultramicrosize 30 mg/kg/day Divided treatments PO
Cats Microsize 25 mg/kg q12h PO

Large Animal Dosage

Species Formulation Dosage Frequency
Horses Microsize 5.6 mg/kg q24h PO for minimum 10 days

Formulation Information

Microsize: Fulvicin U/F, Grisactin, Grifulvin

Ultramicrosize: Fulvicin P/G, Gris-PEG