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Trasylol® (aprotinin) administration may cause fatal anaphylactic or anaphylactoid reactions. Fatal reactions have occurred with an initial (test) dose as well as with any of the components of the dose regimen. Fatal reactions have also occurred in situations where the initial (test) dose was tolerated. The risk for anaphylactic or anaphylactoid reactions is increased among patients with prior aprotinin exposure and a history of any prior aprotinin exposure must be sought prior to Trasylol® (aprotinin) administration. The risk for a fatal reaction appears to be greater upon re-exposure within 12 months of the most recent prior aprotinin exposure. Trasylol® (aprotinin) should be administered only in operative settings where cardiopulmonary bypass can be rapidly initiated. The benefit of Trasylol® (aprotinin) to patients undergoing primary CABG surgery should be weighed against the risk of anaphylaxis associated with any subsequent exposure to aprotinin. (See CONTRAINDICATIONS, WARNINGS and PRECAUTIONS).
Trasylol® (aprotinin injection), C284H432N84O79S7, is a natural proteinase inhibitor obtained from bovine lung. Aprotinin (molecular weight of 6512 daltons), consists of 58 amino acid residues that are arranged in a single polypeptide chain, cross-linked by three disulfide bridges. It is supplied as a clear, colorless, sterile isotonic solution for intravenous administration. Each milliliter contains 10,000 KIU (Kallikrein Inhibitor Units) (1.4 mg/mL) and 9 mg sodium chloride in water for injection. Hydrochloric acid and/or sodium hydroxide is used to adjust the pH to 4.5-6.5.
Last reviewed on RxList: 3/16/2007
This monograph has been modified to include the generic and brand name in many instances.
Additional Trasylol Information
- Trasylol Drug Interactions Center: aprotinin (bovine) iv
- Trasylol Side Effects Center
- Trasylol FDA Approved Prescribing Information including Dosage
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