Pharmaceutical - grade heparin sodium:

　　In the United States, according to GoodRx, the lowest price of the most common version of heparin sodium is approximately $33.47, while the average retail price is $338.98, showing a significant price difference.

　　In China, prices vary in different regions and hospitals. The price of heparin sodium injection usually ranges from several tens to about two hundred yuan. For example, in medical institutions in ordinary cities, the price may be between 50 - 100 yuan, but in top - tier hospitals, the price may be relatively higher, around 200 yuan.

　　API - grade heparin sodium:

　　Historically, the price of heparin sodium API has fluctuated greatly. In the past, there have been prices as low as several thousand yuan per 100 million units, and there have also been cases of significant price rebounds.

　　In recent years, the price of heparin sodium API has been affected by various factors, such as the slaughter rate of pigs, pork prices, and market supply - and - demand relationships. For example, in 2020, affected by the pandemic, the price of heparin sodium increased significantly; previously, the heparin sodium injection - related death incident in the United States also had a certain impact on industry prices.

　　Recent market quotation information shows that the price of heparin sodium API per 100 million units may range from several thousand yuan to tens of thousands of yuan.

　　Overall, the price of heparin sodium is comprehensively affected by multiple factors such as product type (pharmaceutical - grade or API - grade), region, market supply - and - demand, and raw material costs. If you want to know more accurate price information, it is recommended to consult local medical institutions or pharmaceutical suppliers.