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Nafcillin sodium
Used for: Nafcillin is indicated in the treatment of infections caused by penicillinase-producing staphylococci which have demonstrated susceptibility to the drug. Culture and susceptibility tests should be performed initially to determine the causative organism and its susceptibility to the drug (see CLINICAL PHARMACOLOGY - Susceptibility Testing ). Nafcillin should not be used in infections caused by organisms susceptible to penicillin G.