Alteplase (Actilyse; Activase) is a recombinant tissue plasminogen activator and serves as a thrombolytic agent, playing a crucial role in treating acute ischemic stroke, pulmonary embolism, acute myocardial infarction, and catheter occlusion. The specifications below refer to the active content of Alteplase, with the effective Alteplase content: total mass ratio = 1:46~1:50, with the actual ratio depending on the batch.