Answer
It is long acting, but duration varies with the procedure, injection site, formulation and individual response. Follow the treating team's advice about protecting the numb area.
Sources for this answer
- Bupivacaine Hydrochloride 0.1%w/v Solution for Infusion — Current selected SmPCemc · Summary of Product Characteristics
- NHSNHS · NHS medicine guidance
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.