Jiang Zhongchun tablets have been on the market for a long time. I heard that its main raw material, Ampelopsis grossedentata, produced very little, so it was only sold in Beijing before, and it was not promoted. The promotion just started this year.
The retail price of Chun Qing tablets in Jiang Zhong, Hubei Province is 356 yuan/box (it can be eaten for one month). I checked. It's approved by the US Food and Drug Administration. The patent office can also find patents. Patents are all for treatment, so there should be no mistake.