<unk>  <unk>  is a thrombolytic medication and enzyme. As a medication it is used to break down clots in some cases of myocardial infarction (heart attack), pulmonary embolism, and arterial thromboembolism. The type of heart attack it is used in is an ST elevation myocardial infarction (STEMI). It is given by injection into a vein. Side effects include nausea, bleeding, low blood pressure, and allergic reactions. A second use in a person's lifetime is not recommended. While no harm has been found with use in pregnancy, it has not been well studied in this group.<unk>  is in the antithrombotic family of medications and works by turning on the fibrinolytic system.<unk>  was discovered in 1933 from beta-hemolytic streptococci. It is on the World Health Organization's List of Essential Medicines. It is no longer commercially available in the United States.
Streptokinase
Thrombin
Serpin
Fibrinolysin
Prothrombinase
Angiozyme
Ocriplasmin
Coagulase