<prompt> Which of the following is an ester:ChlorprocaineBupivacaineDibucainePrilocaine  <response>: Ans: a ChlorprocaineESTER and AMIDESEster one Tin nameAmides 2 Tin name Cocaine Benzocaine Chlorprocaine Tetracaine Lignocaine Bupivacaine Prilocaine Dibucaine EtidocaineRemember: Amide group of LA contain 2 i in their names. All LA causes causes vasodilation and hypotension, EXCEPT Cocaine. It causes vasoconstriction and significant rise in BP. 