<prompt> Which of the following is NOT an amide ?LignocaineProcaineMepivacaineDibucaine  <response>: Ans. is b i.e., Procaine o Local anaesthetics are either esters aminoesters or amides aminoamides. A Aminoesters :- Procaine, chloroprocaine, tetracaine Amethocaine, benzocaine, cocaine. B Amides aminoamides Lignocaine, Prilocaine, mepivacaine, bupivacaine, etidocaine, ropivacaine and dibucaine. 