What is Grisactin?
Griseofulvin (marketed under the proprietary name Grifulvin V by Orthoneutrogena Labs, according to FDA orange book) is an orally administered antifungal drug. It is used both in animals and humans, to treat fungal infections of the skin (commonly known as ringworm) and nails. It is produced by culture of some strains of the mold Penicillium griseofulvum, from which it was isolated in 1939.
It is an antibiotic produced by the mycelial fungus Penicillium patulum.
It is on the World Health Organization's List of Essential Medicines, the most important medications needed in a basic health system.