Proving Medicines

Organon Aphorism §121

In proving medicines to ascertain their effects on the healthy body, it must be borne in mind that the strong, heroic substances, as they are termed, are liable even in small doses to produce changes in the health even of robust persons. Those of milder power must be given for these experiments in more considerable quantities; in order to observe the action of the very weakest, however, the subjects of experiment should be persons free from disease, and who are delicate, irritable and sensitive.

Samuel Hahnemann, Organon of Medicine, 6th edition (Boericke translation, public domain).

Expert explanation & clinical interpretation for this aphorism are coming soon.