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Mepivacaine /mɛˈpɪvəkeɪn/ is a local anesthetic of the amide type. Mepivacaine has a reasonably rapid onset (more rapid than that of procaine) and medium duration of action (shorter than that of procaine) and is marketed under various trade names including Carbocaine and Polocaine. Mepivacaine /mɛˈpɪvəkeɪn/ is a local anesthetic of the amide type. Mepivacaine has a reasonably rapid onset (more rapid than that of procaine) and medium duration of action (shorter than that of procaine) and is marketed under various trade names including Carbocaine and Polocaine. Mepivacaine became available in the United States in the 1960s. Mepivacaine is used in any infiltration and regional anesthesia. It is supplied as the hydrochloride salt of the racemate, which consists of R(-)-mepivacaine and S(+)-mepivacaine in equal proportions. These two enantiomers have markedly different pharmacokinetic properties.