<unk>  is a collagen sponge coated with the human coagulation factors fibrinogen and thrombin. It is used during surgery to stop local bleeding on internal organs (hemostasis). The sponge is manufactured from horse tendons.<unk>  reacts upon contact with blood, other body fluids or saline to form a clot that glues it to the tissue surface. Hemostasis is reached in a few minutes, and the sponge is absorbed by the body within several weeks. Some patients experience hypersensitivity or allergic reactions. In rare cases, it could turn into severe hypersensitive reaction. Those who are prone to having a systemic reaction to horse proteins or human blood products are not good candidates for use of<unk> .
TachoSil
Aneugen
Alloplant
Nicogel
Elastix 
Asthmagen
PharMed
Clinatec