system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Local anaesthetic with prolonged action -
assistant
The correct answer is  Ans. is 'd' i.e., Dibucaineo Dibucaine is the longest acting local anaesthetico Chlorprocaine is the shortest acting local anaesthetico Decreasing order of duration : - Dibucaine > Bupivacine = Tetracaine = Ropivacaine =Etidocaine > Prilocaine = Lignocaine = Mepivacaine = Cocaine > Procaine > Chlorprocaine.