Griseofulvin — Uses, Dosage, Side Effects & Safety
Drug class: Antifungal (systemic)
Overview
Griseofulvin is a prescription antifungal medication used to treat fungal infections of the skin, hair, and nails, such as ringworm, athlete's foot, and jock itch. It is not effective against bacterial or viral infections. Griseofulvin works by stopping the growth of fungi. It binds to a part of the fungus called microtubules, interfering with cell division and preventing the fungus from spreading. This allows your body to clear the infection over time. Key points: Griseofulvin is usually taken by mouth for several weeks or months, depending on the type and location of the infection. It is most effective when taken with fatty foods to improve absorption. Patients should complete the full course of therapy even if symptoms improve early.
Therapeutic uses
- Tinea capitis
- Tinea corporis
- Tinea pedis
- Tinea cruris
- Onychomycosis
Common side effects
- Nausea
- Vomiting
- Diarrhea
- Headache
- Rash
- Photosensitivity
- Hepatotoxicity
- Leukopenia
Frequently Asked Questions about Griseofulvin
How long does it take for griseofulvin to work?
Improvement is usually seen within a few weeks, but full treatment may take several weeks to months depending on the infection site. Nail infections may require several months of therapy.
Can griseofulvin be used in children?
Yes, griseofulvin is commonly prescribed for children with fungal infections of the scalp or skin. The dose is based on body weight.
Is griseofulvin safe during pregnancy?
No, griseofulvin should not be used during pregnancy due to the risk of birth defects. Effective contraception is recommended during and for at least one month after treatment.
Can I drink alcohol while taking griseofulvin?
It is best to avoid alcohol while taking griseofulvin, as it may increase the risk of liver problems and cause unpleasant reactions.
What should I do if I develop a rash while taking griseofulvin?
Contact your healthcare provider promptly if you develop a rash, especially if it is severe, blistering, or accompanied by other symptoms such as fever or swelling.
Does griseofulvin interact with birth control pills?
Yes, griseofulvin may reduce the effectiveness of oral contraceptives. Use an additional non-hormonal form of contraception during treatment.
Can griseofulvin be used for all types of fungal infections?
Griseofulvin is effective for dermatophyte infections (skin, hair, nails) but not for yeast infections (such as Candida) or systemic fungal infections.
Educational information only. Always consult a qualified healthcare professional before starting, stopping, or changing any medication.