November 30, 2015
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Heparin Preservative Free

"The U.S. Food and Drug Administration today approved Promacta (eltrombopag) to treat low blood platelet count in pediatric patients – ages one year and older – with a rare blood disorder called chronic immune thrombocytopenic purpura "...

Heparin Preservative Free




Bleeding is the chief sign of heparin overdosage. Nosebleeds, blood in urine or tarry stools may be noted as the first sign of bleeding. Easy bruising or petechial formations may precede frank bleeding.


Neutralization of Heparin Effect—When clinical circumstances (bleeding) require reversal of heparinization, protamine sulfate (1% solution) by slow infusion will neutralize heparin sodium. No more than 50 mg should be administered, very slowly, in any 10 minute period. Each mg of protamine sulfate neutralizes approximately 100 USP heparin units. The amount of protamine required decreases over time as heparin is metabolized. Although the metabolism of heparin is complex, it may, for the purpose of choosing a protamine dose, be assumed to have a half-life of about ½ hour after intravenous injection.

Administration of protamine sulfate can cause severe hypotensive and anaphylactoid reactions. Because fatal reactions often resembling anaphylaxis have been reported, the drug should be given only when resuscitation techniques and treatment of anaphylactoid shock are readily available.

For additional information, consult the labeling of Protamine Sulfate Injection, USP products.


Heparin sodium (heparin sodium injection preservative free) should NOT be used in patients with the following:

Severe thrombocytopenia; when suitable blood coagulation tests— e.g., the wholeblood clotting time, partial thromboplastin time, etc cannot be performed at appropriate intervals (this contraindication refers to full-dose heparin; there is usually no need to monitor coagulation parameters in patients receiving low-dose heparin).

An uncontrollable active bleeding state (see WARNINGS), except when this is due to disseminated intravascular coagulation.

This monograph has been modified to include the generic and brand name in many instances.

Last reviewed on RxList: 12/29/2008


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