Griseofulvin is an antifungal medicine used to treat fungal infections of your skin, scalp, nails, feet, groin and other parts of your body. It works by stopping the growth of certain fungi responsible for fungal infections. This medicine is not used for other infections caused by bacteria or virus. Griseofulvin can cause side effects like mouth sore, diarrhoea, headache, sore throat etc. These side effects usually go after some time. Consult your doctor if your side effects are bothering ... Medscape - Indication-specific dosing for Grifulvin V (DSC), Gris-PEG (DSC) ( griseofulvin ), frequency-based adverse effects, comprehensive interactions, contraindications, pregnancy & lactation schedules, and cost information. Griseofulvin is an oral drug that treats fungal infections of the skin, nails and scalp. It works by interfering with fungal mitosis and is produced by fermenting the fungus Penicillium griseofulvum. Find patient medical information for Griseofulvin (Fulvicin P/G, Gris-PEG, and others) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings