Answer
Combined local anaesthetics can have additive systemic effects. Tell the clinician or pharmacist about every lidocaine or local-anaesthetic product being used.
Sources for this answer
- Lidocaine Grunenthal 700 mg medicated plaster — Current selected SmPCemc · Summary of Product Characteristics
- LMX4 Lidocaine 4% w/w Cream — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.