Griseofulvin
Also sold as: Grisovin
Prescription neededAntifungals
Comes as:TabletSuspension
Usual adult dose
Usual adult dose: 500 mg to 1 g a day with a fatty meal, in one or two doses. Scalp ringworm usually needs at least 6 to 8 weeks. Children: dose by weight — ask your doctor or pharmacist.
Your doctor may give you a different dose. Children's doses depend on weight.
Side effects
Common
- headache
- nausea
- diarrhoea
- sensitivity to sunlight
- rash
Serious — get help
Stop taking it and see a doctor straight away if you notice:
- severe skin rash
- yellow eyes or skin
- confusion
Do not take it, or take care, if
- Pregnancy (avoid pregnancy during and for 1 month after; men should not father a child for 6 months after)
- Severe liver disease
- Porphyria
- Lupus
Interactions
Medicines that can react with this one.
Serious1 medicineDo not take these together unless your doctor says so.
- Ethinylestradiol + Levonorgestrel
Griseofulvin makes contraceptive pills less reliable; use condoms as well.
Moderate1 medicineTake together only with care. Ask your doctor or pharmacist.
- Warfarin
Griseofulvin can lower the effect of warfarin; INR should be checked.