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Drug Safety-related Labeling Changes (SrLC)

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LIQUAEMIN LOCK FLUSH (NDA-000552)

(HEPARIN SODIUM)

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

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10/24/2024 (SUPPL-26)

Approved Drug Label (PDF)

5 Warnings and Precautions

WARNINGS

Additions and/or revisions underlined:

Hyperkalemia: Heparin can suppress adrenal secretion of aldosterone leading to hyperkalemia, particularly in patients with diabetes mellitus, chronic renal failure, pre- existing metabolic acidosis, a raised plasma potassium, or taking potassium sparing drugs. The risk of hyperkalemia appears to increase with duration of therapy but is usually reversible upon discontinuation of heparin.

Measure blood potassium in patients at risk of hyperkalemia before starting heparin therapy and periodically in all patients treated for more than 5 days or earlier as deemed fit by the clinician.