As long as it is legal and compliant, and does not contain dangerous and prohibited ingredients, basically all drugs that can circulate in Chinese mainland can be mailed.

The channel has strong customs clearance ability and the prescription is stable. The basic prescription is 7- 12 days. Before mailing, it is best to keep the packaging and instructions for use of the drug (preferably bilingual instructions in Chinese/English, including the composition, status and instructions for use of the drug).