Fulvicin U/F

Gris-PEG (generic: griseofulvin) is a prescription medication used to treat skin infections such as jock itch, athlete's foot, and ringworm; and fungal infections of the scalp, fingernails, and toenails. This medication belongs to a group of drugs called antifungals. It works by inhibiting the growth of certain fungi that cause infection.

Gris-PEG comes in tablet form. It is usually taken once daily, but can be taken up to 4 times daily. Although symptoms may get better in a few days Gris-PEG is usually taken for 2 to 4 weeks for skin infections, 4 to 6 weeks for hair and scalp infections, 4 to 8 weeks for foot infections, 3 to 4 months for fingernail infections, and at least 6 months for toenail infections.

Common side effects include flushing, nausea, vomiting, and diarrhea. Gris-PEG may cause dizziness. Do not drive or operate heavy machinery until you know how it affects you.

Gris-PEG is a prescription medication used for the treatment of the following ringworm infections:

• tinea corporis (ringworm of the body)
• tinea pedis (athlete's foot)
• tinea cruris (ringworm of the groin and thigh) 
• tinea barbae (barber's itch)
• tinea capitis (ringworm of the scalp)
• tinea unguium (onychomycosis, ringworm of the nails)

This medication may be prescribed for other uses. Ask your doctor or pharmacist for more information.

Common side effects include:

• oral thrush
• nausea
• vomiting
• diarrhea
• headache
• fatigue
• dizziness
• insomnia
• mental confusion
• impairment of performance of routine activities

This is not a complete list of Gris-PEG side effects. Ask your doctor or pharmacist for more information.

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.