Zhuanzhihui Patent Service Platform answers your question:
There is no necessary relationship between patent and drug effect.
whether it is effective or not depends on whether it is a "drug", and it is impossible to tell whether it is effective or not unless it is a drug. As long as the drug can be "effective", because the efficacy of the drug is to be identified by experiments organized by the State Drug Administration, and those who do have a curative effect will be issued a "drug registration certificate".
each drug has a specific "approval number", and those without an approval number are not "drugs"
For patent consultation, please refer to the forwarding desk for application and transfer.