AntifungalPrescription only
Terbinafine
Tablet or cream
Quick Summary
Terbinafine is very effective against dermatophyte fungi.
Ringworm
Fungal nail infections
Medical Uses
Ringworm: Body, groin and feet.
Fungal nail infections: Tablets for several months.
How it's taken
Cream is applied once or twice daily; tablets are taken once daily as prescribed.
Your doctor decides the right dose for you and how long to take it.
Your doctor decides the right dose for you. Follow their instructions and the label.
Common Side Effects
Stomach upset
With tablets.
Taste changes
Rarely.
Rash
Sometimes.
Interactions
Some antidepressants and heart medicines
Possible interactions.
Critical Warnings
Liver problems
Report jaundice, dark urine or tiredness.
Severe rash
Stop and seek advice.
Sources and further reading
Last updated 21 October 2026. For more detail, see these trusted health organisations.
- Terbinafine: drug information(opens in a new tab) · MedlinePlus, US National Library of Medicine
- Terbinafine: a medicine to treat fungal skin infections(opens in a new tab) · NHS