Antithrombin III drug interactions

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Antithrombin III
THROMBATE III® FDA Package Insert
Indications and Usage
Dosage and Administration
Warnings and Precautions
Adverse Reactions
Drug Interactions
Use in Specific Populations
Description
Clinical Pharmacology
How Supplied/Storage and Handling

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1], Associate Editor(s)-in-Chief: Jesus Rosario Hernandez, M.D. [2]

Indications and Usage

THROMBATE III is indicated for the treatment of patients with hereditary antithrombin III deficiency in connection with surgical or obstetrical procedures or when they suffer from thromboembolism.

Subjects with ATIII deficiency should be informed about the risk of thrombosis in connection with pregnancy and surgery and about the inheritance of the disease.

The diagnosis of hereditary antithrombin III (ATIII) deficiency should be based on a clear family history of venous thrombosis as well as decreased plasma ATIII levels, and the exclusion of acquired deficiency.

ATIII in plasma may be measured by amidolytic assays using synthetic chromogenic substrates, by clotting assays, or by immunoassays. The latter does not detect all hereditary ATIII deficiencies.(22)

The ATIII level in neonates of parents with hereditary ATIII deficiency should be measured immediately after birth. (Fatal neonatal thromboembolism, such as aortic thrombi in children of women with hereditary antithrombin III deficiency, has been reported.)(23)

Plasma levels of ATIII are lower in neonates than adults, averaging approximately 60% in normal term infants.(24,25) ATIII levels in premature infants may be much lower.(24,25) Low plasma ATIII levels, especially in a premature infant, therefore, do not necessarily indicate hereditary deficiency. It is recommended that testing and treatment with THROMBATE III of neonates be discussed with an expert on coagulation.(18)[1]

References

  1. "THROMBATE III (ANTITHROMBIN III) KIT [GRIFOLS USA, LLC]". Retrieved 7 March 2014.

Adapted from the FDA Package Insert.