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Nafcillin
  • Professionals
  • FDA PI

Nafcillin

Generic name: Nafcillin sodium
Dosage form: injection powder, for solution
Drug class:Penicillinase resistant penicillins

Medically reviewed by Drugs.com. Last updated on Apr 1, 2021.

For Intramuscular or Intravenous Injection
Rx only


To reduce the development of drug-resistant bacteria and maintain the effectiveness of Nafcillin for Injection and other antibacterial drugs, Nafcillin for Injection should be used only to treat or prevent infections that are proven or strongly suspected to be caused by bacteria.

DESCRIPTION

Nafcillin for Injection, USP is semisynthetic penicillin derived from the penicillin nucleus,6-amino-penicillanic acid. The chemical name of Nafcillin sodium is Monosodium (2S, 5R, 6R)-6-(2-ethoxy-1-naphthamido)-3, 3-dimethyl-7-oxo-4-thia-1- azabicyclo [3.2.0]heptane-2-carboxylate monohydrate. It is resistant to inactivation by the enzyme penicillinase (beta-lactamase). The structural formula of Nafcillin sodium is as follows:

C21H21N