Samuel Hahnemann, a German physician, founded homeopathy.
Hahnemann believed that the medicine he had been taught to practice some-times did the patient more harm than good.
He carried out experiments on the curative power of bark, which was the source of quinine. He was the first person to observe that a remedy that produces symptoms in a healthy person will cure those same symptoms when manifested by a person in a disease state.
This principle that ‘likes are cured by likes’ is the very foundation of homeopathy. Hahnemann is called the ‘father of experimental pharmacology’ because he was the first physician to prepare medicines in a specialized way, by first trying them on healthy human beings, to determine how the medicines acted to cure diseases.