About terbinafine hydrochloride eq to terbinafine
Allylamine antifungal
Used for
- Fungal nail infections
- Ringworm and other skin fungal infections
Usual adult dose
Nail infections: 250 mg once daily, usually 6 weeks for fingernails or 12 weeks for toenails.
Common side effects
- Headache
- Diarrhoea or stomach upset
- Rash or itching
- Taste or smell changes
Important warnings
- Oral treatment can rarely cause serious liver injury; avoid with chronic or active liver disease.
- Seek prompt assessment for jaundice, dark urine, persistent nausea, or severe tiredness.
- Blood tests may be needed during prolonged treatment.
- Not usually effective for skin yeast infections.
Pregnancy
Generally avoid during pregnancy unless a clinician considers it essential; human safety information is limited.
Breastfeeding
Terbinafine passes into breast milk; oral treatment is generally not recommended while breastfeeding.
Interactions
- Rifampicin can lower terbinafine levels.
- Cimetidine can raise terbinafine levels.
- May affect warfarin and some antidepressants or heart medicines.
- Avoid combining with other medicines that can harm the liver.
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 It may be incomplete or out of date.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.