Zhuānlì dàoqī yǐhòu, biéde yàochǎng jiù kěyǐ fǎngzhì yuányányào le.
Once the patent runs out, other drug makers can copy the originator drug.
Tips
usage
原研 means "originally researched". The cheaper copies are 仿制药, generics, and in China a generic has to pass a 一致性评价 "consistency evaluation" showing it works the same as the 原研药.
