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An autologous or commercial tissue adhesive containing fibrinogen and thrombin. The commercial product is a two component system from human plasma that contains more than fibrinogen and thrombin. The first component contains highly concentrated fibrinogen, Factor VIII, fibronectin, and traces of other plasma proteins. The second component contains thrombin, calcium chloride, and antifibrinolytic agents such as aprotinin. Mixing of the two components promotes clotting and the formation and cross-linking of fibrin. The tissue adhesive is used for tissue sealing, hemostasis, and wound healing.