The origin of the development of Chengdu pharmacies In the early 20th century, there were nearly 100 pharmacies in Chengdu, most of which had the characteristics of "front shop and back workshop", that is, the front of the shop was for doctors to sit in the clinic, make prescriptions and sell Chinese patent medicines, and the back of the shop was for processing and preparing prescriptions and preparing pills for sale. In 1956, public-private partnership began, and all pharmacies were merged into three pharmaceutical factories, named Tongrentang, Gengding Pharmacy, and Jingyitang. In the early days of the Cultural Revolution, the three pharmaceutical factories were merged into Chengdu Workers, Peasants and Soldiers Pharmaceutical Factory, and renamed Chengdu Traditional Chinese Medicine Factory in the early days of reform and opening up. Now it has become Chengdu Jinding Pharmaceutical Co., Ltd. after physical reform. Because there are many pharmacies, each has technical backbones. With the merger of shops and factories, a large number of technical backbones of traditional Chinese medicine have emerged. The origin of the development of the traditional Chinese medicine major of Chengdu College of Traditional Chinese Medicine Chengdu College of Traditional Chinese Medicine is one of the first four traditional Chinese medicine colleges established in my country in 1956. In 1959, the school pioneered the traditional Chinese medicine major in the country and began to enroll students. During the teaching process, Xu Chujiang, a technical backbone of Chengdu Medicinal Materials Station and known as the King of Medicine, was hired as a special teacher. He was officially transferred to the College of Traditional Chinese Medicine in 1965 and has been responsible for the teaching of Chinese medicine preparations. Yang Xiaolu, Song Xiaoquan and He Yuquan were also hired as experimental instructors. Famous masters from various Chinese medicine factories in Chengdu were hired as internship instructors, such as Zheng Zicai from Tongrentang, Wang Yunyao from Gengding Pharmacy, and Li Jihui from Jingyitang, etc., to teach students of this major the preparation and processing technology of Chengdu Chinese medicine. Tongrentang and other three pharmaceutical factories were used as teaching internship bases. The merged Chengdu Workers, Peasants and Soldiers Pharmaceutical Factory was also a teaching internship base. Each student was sent to each factory in turn for on-site production internships in a master-apprentice style, and students thus learned a lot of Chengdu-specific pharmaceutical technologies. Traditional Chinese medicine preparation methods are commonly known as "rising, lowering, boiling and beating". Among them, the rising (Dan) and lowering (Dan) methods are the most difficult. The research team only used the rising (Sanxian Dan) and lowering (-) as examples to prepare audio-visual materials. There are many varieties with definite efficacy in Chengdu. For example, Chengdu Tongrentang mainly produces oral preparations, especially large honey pills (wax packaging), such as Lingbao pills for children, Jinlingdan for treating summer heat and dampness, Zixuedan (paste) for epidemic Japanese encephalitis, Wanying tablets (special-shaped tablets), etc.; Gengding Pharmacy mainly produces external preparations, such as Kelongyujiangdan, Lilongbaohe Paste, Qilisan, etc.; Jingyitang mainly produces oral preparations, especially small pills, such as Awei Pills, Goose Tube Eye Drops, etc.; Chengdu Workers, Peasants and Soldiers Pharmaceutical Factory's Zhongjiu Pills, etc. Chengdu's Zhongjiu Pills are a unique variety in the country, only processed for foreign trade, and are used to treat syphilis, skin cancer, bone tuberculosis and other diseases with definite efficacy. The preparation technology of Zhongjiu Pills was once lost. In 1963, Teacher Xu Chujiang gathered many old technicians in Chengdu, including Zheng Zicai, Li Jihui, and Wang Yunyao, to study the special variety of Zhongjiu Pills in Chengdu, and then provided the prescription and preparation technology to Chengdu Workers, Peasants and Soldiers Pharmaceutical Factory. 20 years ago, due to mercury poisoning, the Chengdu Workers, Peasants and Soldiers Pharmaceutical Factory stopped producing Zhongjiu Pills. Xie Xiuqiong also participated in this research and mastered the preparation technology of Zhongjiu Pills. In 1981, she was invited by the Dukou Municipal Health Bureau to Pankuang Hospital and Yibin Municipal Hospital of Traditional Chinese Medicine to teach the preparation technology of Zhongjiu Pills, but none of them cultivated true successors. Chengdu's traditional Chinese medicine preparation methods include many special pharmaceutical tools and preparation technologies. Just taking the pill-making process as an example, the shapes and methods of the three pharmaceutical factories are different. Tongrentang uses a hanging plate, Gengding Pharmacy uses a flat mixing plate, and Jingyitang uses a drag plate. Through the recent investigation of the research team, it was found that there are only a few old artists in Chengdu who can prepare special pharmaceutical tools, and special pharmaceutical tools are also on the verge of extinction. There are no written records of the prescriptions and preparation techniques of this type of variety, and those that are recorded are not operational. In the past, they were all passed down from master to master and were confidential varieties. Most of the old generation of technicians who mastered the prescriptions, preparation methods, and preparation equipment of this type of preparations have passed away, and those who are still alive are already very old. Information source: Chengdu Intangible Cultural Heritage Protection Center Information source: Chengdu Intangible Cultural Heritage Protection Center