How did Dourgen die and what mysterious drugs were banned by the court?

Dourgen suffered many injuries in the war in his early years, and later he took Dan medicine without restraint. The name of this Dan medicine is Ajisu Pill, which is a kind of Dan medicine from the western regions. After the death of Huang Taiji, he was transferred to Fu Lin, that is, the emperor shunzhi. However, due to the emperor shunzhi's young age, he entrusted Dourgen with the opportunity to seize the power in the DPRK. However, Dourgen suffered a lot of injuries in his early years. Now, with the increasingly busy affairs in the DPRK and China, old injuries keep recurring and his body is very weak.

In order to keep fit, Dourgen sent people to look for talents everywhere. After a long period of exploration, Dourgen learned that there is an ancestral secret recipe in the Lama Temple in the Western Regions, and the Dan medicine refined by this side has miraculous effects. Dourgen was very happy when he learned the news, and immediately sent someone to ask the Lama in the palace if it happened. The Lama couldn't stand Dourgen's repeated inquiries and admitted that there was such a secret recipe. The refined Dan medicine is called Ajisu Pill.

Dourgen immediately ordered the Lama to refine Dan medicine for himself. The Lama had to spend 7749 days refining a hundred pills of Dan medicine and giving them to Dourgen, and told him that although the medicine had a wonderful effect, he could not take it often. After Dourgen got the Dan medicine, he couldn't wait to take one immediately. Sure enough, he immediately felt refreshed and energetic, so he put the Lama's advice behind him and took Dan medicine every day.

Soon 100 pills of Dan medicine were used up. Dourgen found Lama and asked him to refine Dan medicine for himself again. The Lama was shocked and thought that Dourgen was crazy. But by this time, Dourgen had become dependent on Dan medicine. In desperation, Lama had to refine Dan medicine again. It's a pity that Dourgen fell off his horse and died when he went out hunting before the Dan medicine was refined.