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Drug Safety-related Labeling Changes (SrLC)

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NALLPEN IN PLASTIC CONTAINER (NDA-050655)

(NAFCILLIN SODIUM)

Safety-related Labeling Changes Approved by FDA Center for Drug Evaluation and Research (CDER)

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04/05/2018 (SUPPL-26)

Approved Drug Label (PDF)

6 Adverse Reactions

Nephrotoxicity

(Additions and/or revisions are underlined)

Renal tubular damage and interstitial nephritis have been associated with the administration of nafcillin. Manifestations of nephrotoxicity are hematuria, proteinuria, and acute kidney injury, and may be associated with rash, fever, and eosinophilia. The majority of cases resolve upon discontinuation of nafcillin. Some patients, however, may require dialysis treatment and may develop permanent renal damage.

 

 

07/14/2017 (SUPPL-25)

Approved Drug Label (PDF)

5 Warnings and Precautions

PRECAUTIONS

(Additions and/or revisions are underlined)

Laboratory Tests

Bacteriologic studies to determine the causative organisms and their susceptibility to the penicillinase-resistant penicillins should be performed.

… Urinalysis, serum blood urea nitrogen, and creatinine determinations should be performed at baseline and periodically during therapy with nafcillin. Serum bilirubin, aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase, and gamma glutamyl transferase should be obtained at baseline and periodically during therapy, especially when using high nafcillin doses. In patients with worsening hepatic function, the risk versus benefit of continued Nafcillin use should be re-evaluated.

6 Adverse Reactions

(Additions and/or revisions are underlined)

Body as a Whole

Immediate reactions usually occur within 20 minutes of administration and range in severity from urticaria and pruritus to angioedema, laryngospasm, bronchospasm, hypotension, vascular collapse, and death…

Hepatic Reactions

Elevation of liver transaminases and/or cholestasis may occur, specifically with administration of high doses of nafcillin.