Surgery General 354d951a Longest acting LA is ? A Bupivacaine+ Etidocaine B Bupivacaine + lignocaine C Procaine + lidocaine D Bupivacaine + mepivacaine High-Yield Explanation Half life order - Bupivacaine> Etidocaine> Mepivacaine> Lignocaine. Same will be the order of duration of action.