When did chemical medicine begin?

As early as A.D. 18 18, there were bile, blood, cockscomb and plantain seeds in prescriptions in London, and people at that time all took them as oral medicines. These drugs are rarely taken from minerals because ancient Greek philosophers and medieval scholars were not interested in chemicals and their properties. But in the late ancient times and the Middle Ages, alchemists studied many chemical problems in the process of alchemy, and some of them became interested in the application of alchemy in medicine.

The study of alchemy in chemistry and medicine reached its peak in the period of ParaCelsus Celsus (about 1493 ~ 154 1). He combined medicine with alchemy and became a new medical chemistry science, which was called medical chemistry at that time. On the one hand, alchemy in past dynasties was related to chemical technology, on the other hand, it was related to mysterious religion. Therefore, in a period of religious turmoil, when the craft tradition gradually matured, this development appeared in the field of alchemy. This kind of medical chemistry was put forward at the same time as the famous Copernican revolution, Protestant reform and blood circulation theory, which may not be surprising, but it has far-reaching influence.

In medicine, Para Celsus put forward the theory that human body is essentially a chemical system, abandoning the previous view that human health is determined by four kinds of tissue fluids. This chemical system consists of two elements of the alchemist, namely mercury and sulfur, and the salt of the third element added by himself. In his view, diseases may be caused by the imbalance between elements, just as Galen doctors think that diseases are caused by the imbalance between body fluids.