A second principle of homeopathy is that the doctor should use the least amount of a medicine (remedy) necessary to evoke a healing response. This is called the "Minimum Dose". We all know that conventional medicines can cause side effects leading to much suffering or even death. In an effort to prevent such side effects, Dr. Hahnemann began using a scientific procedure called, "Successive Dilution with Agitation" to develop his remedies. He did this to find the point at which they would be therapeutically effective, yet do no harm to the patient. This healing art has been used successfully all over the world for over a century.