SPL Set ID: 8a00624c-c436-4102-a042-dab54022bcc2
1 drug(s) with this SPL Set ID
Nafcillin for Injection, USP is a sterile semisynthetic penicillin derived from 6-amino-penicillanic acid. It is the sodium salt in a parenteral dosage form. 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: C 21 H 21 N 2 NaO 5 S ●H 2 O MW=454.47 Nafcillin for Injection, USP for the intramuscular or intravenous route of administration, contains nafcillin sodium as a sterile white to off-white crystalline dry powder for reconstitution. The reconstituted solution is a clear and colorless solution. The pH of the reconstituted solution is 6 – 8.5. Nafcillin for Injection contains nafcillin sodium as the monohydrate equivalent to 1 gram or 2 grams of nafcillin per vial, is buffered with approximately 38 mg sodium citrate per gram. The sodium content is about 66 mg [2.9 mEq] per gram. Structural Formula