Topical green tea catechin extract
Camellia sinensis (sinecatechins)
Brand names: Catephen
Adult dose
Dose: Apply 0.5cm strand to wart TDS for up to 16 weeks
Route: Topical
Frequency: TDS
Clinical pearls
- External anogenital warts in adults — alternative to imiquimod / podophyllotoxin
- BASHH HPV warts guideline
- Discontinue if no improvement at 16 weeks
Contraindications
- Mucous membranes
- Open wounds
- HIV / immunosuppression (relative)
- Hypersensitivity
Side effects
- Local erythema, pruritus, burning
- Erosion / ulceration
- Pain
- Phimosis (penile use)
Monitoring
- Treatment response
- Local skin reaction
Reference: BNF; BASHH HPV/warts guideline; SmPC; https://bnf.nice.org.uk/drugs/camellia-sinensis/. Verify against your local formulary and the latest BNF before prescribing.
Related
Curated clinical cross-links plus same-class fallbacks.
Pathways
- Suspicious Pigmented Lesion — Melanoma Pathway · NICE NG14 2015 / BAD
- Cellulitis and Erysipelas · NICE NG141 2019 / CREST
- Psoriasis — Severity Assessment and Step-Up Therapy · NICE NG153 2019 / BAD
- Atopic Eczema — Assessment and Step-Up Therapy · NICE NG95 2023
- Urticaria and Angioedema · BSACI / EAACI Guidelines 2022
- Acne Vulgaris — Grading and Treatment · NICE NG198 2021 / BAD