Nafcillin: What Is Nafcillin

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Nafcillin is an antibiotic in the penicillin group of drugs. It fights bacteria in your body.

Nafcillin is used to treat many different types of infections, especially those caused by staphylococcus bacteria ("staph" infections).

Nafcillin may also be used for purposes other than those listed in this medication guide.

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Last updated:	November 01, 2006

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