1, product classification: Zhongyabao belongs to drugs, which are generally purchased in pharmacies through drug channels. Changyu zhibao belongs to health care products and can be purchased in supermarkets or stores.

2. Brand attribution: Zhongyabao is produced by Zhongya Pharmaceutical. Changyu Treasure is produced by Yantai Zhongya Medicine and Health Wine Co., Ltd., a subsidiary of Changyu Group.