<p><strong>General</strong>: Standard management of myocardial infarction should be implemented concomitantly with Tenecteplase treatment. Arterial and venous punctures should be minimized. Noncompressible arterial puncture must be avoided and internal jugular and subclavian venous punctures should be avoided to minimize bleeding from the noncompressible sites. In the event of serious bleeding, heparin and antiplatelet agents should be discontinued immediately. Heparin effects can be reversed by protamine.<br />
<br />
<strong>Readministration</strong>: Readministration of plasminogen activators, including Tenecteplase, to patients who have received prior plasminogen activator therapy has not been systematically studied. Three of 487 patients tested for antibody formation to Tenecteplase had a positive antibody titer at 30 days. The data reflect the percentage of patients whose test results were considered positive for antibodies to Tenecteplase in a radioimmunoprecipitation assay, and are highly dependent on the sensitivity and specificity of the assay. Additionally, the observed incidence of antibody positivity in an assay may be influenced by several factors including sample handling, concomitant medications, and underlying disease. For these reasons, comparison of the incidence of antibodies to Tenecteplase with the incidence of antibodies to other products may be misleading. Although sustained antibody formation in patients receiving one dose of Tenecteplase has not been documented, readministration should be undertaken with caution.<br />
<br />
<strong>Hypersensitivity</strong>: Hypersensitivity, including urticarial / anaphylactic reactions, have been reported after administration of Tenecteplase (e.g., anaphylaxis, angioedema, laryngeal edema, rash, and urticaria). Monitor patients treated with Tenecteplase during and for several hours after infusion. If symptoms of hypersensitivity occur, appropriate therapy should be initiated.</p>