Ulinastatin is a protein drug that is derived from human urine or other 
animal sources, such as pigs or cows. It is a type of protease inhibitor that is 
used for the treatment of inflammatory conditions and shock.
  The manufacture of ulinastatin involves several steps, including protein 
purification and formulation. The following is a brief overview of the 
manufacturing process:
  Collection of raw materials: The starting material for ulinastatin 
manufacture is collected from either human urine or animal sources.
  Purification: The raw material is purified using various methods such as 
fractionation, chromatography, and ultrafiltration to obtain the desired 
protein.

  Formulation: The purified protein is then formulated with excipients and 
stabilizers to create a stable drug product.
  Quality control: The drug product is subjected to rigorous quality control 
testing to ensure its purity, potency, and safety.
  Packaging: The drug product is then packaged in sterile vials or cartridges 
for distribution to hospitals and clinics.
  Ulinastatin has been widely used in Japan and China for the treatment of 
various conditions, such as acute pancreatitis, sepsis, and trauma. It has also 
shown potential in the treatment of COVID-19 patients with severe respiratory 
distress syndrome.
  In conclusion, ulinastatin manufacture is a complex process that involves 
several steps of protein purification and formulation. The resulting drug 
product is subject to rigorous quality control testing to ensure its safety and 
efficacy. The use of ulinastatin has shown promise in the treatment of various 
inflammatory conditions and continues to be an area of active research.