Griseofulvin is primarily used as an antifungal medication to treat infections caused by dermatophytes, which are fungi that affect the skin, hair, and nails. It is commonly prescribed for conditions like ringworm, athlete's foot, jock itch, and fungal infections of the scalp. The drug works by inhibiting fungal cell division, effectively stopping the growth and spread of the infection. It is typically administered orally and requires consistent use over several weeks to ensure complete eradication of the fungus. Griseofulvin is particularly effective for infections that are resistant to topical treatments, making it a valuable option in dermatology. It is important to follow the prescribed dosage and duration to achieve optimal results and prevent recurrence of the infection.