Cannulation
Topical anaesthetics for venepuncture
Lidocaine + Prilocaine
Emla 5% cream
Apply 1-5 hours before procedure (2-5 hours before procedures on large areas e.g. split skin grafting), a thick layer should be applied under occlusive dressing.
Tetracaine
Ametop 4% gel
Adult - Apply contents of up to 5 tubes (applied at separate sites at a single time or appropriate proportion) to site of venepuncture or venous cannulation and cover with occlusive dressing; remove gel and dressing after 30 minutes for venepuncture and after 45 minutes for venous cannulation.
Prescribing Notes:
- Topical local anaesthetics may be absorbed through mucosal surfaces.
- Local anaesthetics may occasionally cause sensitisation.
History Notes
15/12/2021
East Region Formulary content agreed.
Topical anaesthetics for venepuncture
Lidocaine + Prilocaine
Emla 5% cream
For dose, refer to BNF for Children.
Tetracaine
Ametop 4% gel
For dose, refer to BNF for Children.
Prescribing Notes:
- Topical local anaesthetics may be absorbed through mucosal surfaces.
- Local anaesthetics may occasionally cause sensitisation.
- It is important to remove tetracaine gel after 30-45 minutes. Local irritation is more likely if left in contact with the skin for longer periods.
- Tetracaine 4% gel should be avoided in skin biopsies of suspected mastocytoses.
History Notes
31/05/2024
East Region Formulary content agreed.