Take your drug approval number as an example: National Medicine Zhunzi Z200XXXXX is on the following website /ws 0 1/cl 00 1/ to see if it is the same as the one approved above. If it is, it is proved that there is no problem. If it is a patent, it should also be marked on it.
Specific operation: after opening the website, drop it down, and there is a data query point on the right (drugs include medicinal materials). After clicking, enter the standard Chinese medicine word Z200XXXXX and press enter.
I hope it helps you! !