Local anesthetics have been extensively used at the time of cesarean section. Chloroprocaine (Nesacaine) is an ester-type local anesthetic (active ingredient - benzoic acid, 4-amino-2-chloro-2-(diethylamino) ethyl ester, monohydrochloride that has been used as an anesthetic and analgesic in obstetrics & gynecology. It has a rapid onset time of action (usually within 6 to 12 minutes; 9.6 min ± 7.3 min at 40 mg dose; 7.9 min ± 6.0 min at 50 mg dose) and a motor block action lasting for 40 minutes to 2 hours.4 Chloroprocaine, like other local anesthetics, blocks the generation and the conduction of nerve impulses, presumably by increasing the threshold for electrical excitation in the nerve, by slowing the propagation of the nerve impulse and by reducing the rate of rise of the action potential. In general, the progression of anesthesia is related to the diameter, myelination and conduction velocity of affected nerve fibers.