About griseofulv in
Oral antifungal medicine
Used for
- Treats ringworm and other fungal infections of skin, scalp, hair, or nails.
Usual adult dose
Usually 500 mg to 1 g daily, depending on infection; treatment often lasts weeks or months.
Usual dose in children
Usually 10 mg/kg daily, up to 1 g; dosing and duration depend on infection and weight.
Common side effects
- Headache, nausea, vomiting, or stomach upset
- Diarrhea
- Rash or sensitivity to sunlight
- Rarely, liver problems or severe allergic reactions
Important warnings
- Take with a fatty meal to improve absorption.
- Avoid alcohol during treatment and for several days afterward.
- May reduce the effectiveness of hormonal contraceptives; use additional contraception.
- Can cause serious harm in pregnancy; avoid becoming pregnant during treatment and for one month afterward.
Pregnancy
Avoid during pregnancy; it may harm an unborn baby. Men should avoid fathering a child during treatment and for six months afterward.
Breastfeeding
Safety is uncertain; seek professional guidance before use while breastfeeding.
Interactions
- Warfarin: may reduce its effect.
- Hormonal contraceptives: may reduce effectiveness.
- Barbiturates: may reduce griseofulvin levels.
- Alcohol: may cause unpleasant reactions.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.