Homeopathy
Homeopathy is a complete system of medical theory and practice. Its founder, German physician Samuel Christian Hahnemann (1755-1843), hypothesized that one can select therapies on the basis of how closely symptoms produced by a remedy match the symptoms of the patient's disease. He called this the "principle of similars." Hahnemann proceeded to give repeated doses of many common remedies proving" or, in modern homeopathy, a "human pathogenic trial." As a result of this experience, Hahnemann developed his treatments for sick patients by matching the symptoms produced by a drug to symptoms in sick patients. Hahnemann emphasized from the beginning carefully examining all aspects of a person's health status, including emotional and mental states, and tiny idiosyncratic characteristics.
Since homeopathy is administered in minute or potentially nonexistent material dosages, there is an a priori skepticism in the scientific community about its efficacy. Nonetheless, the medical literature provides evidence of ongoing research in the field. Studies of homeopathy's effectiveness involve three areas of research:
- Comparisons of homeopathic remedies and placebos
- Studies of homeopathy's effectiveness for particular clinical conditions
- Studies of the biological effects of potencies, especially ultra-high dilutions
Five systematic reviews and meta-analyses evaluated clinical trials of the effectiveness of homeopathic remedies as compared with placebo. The reviews found that, over all, the quality of clinical research in homeopathy is low. But when high-quality studies were selected for analysis, a surprising number showed positive results.
Overall, clinical trial results are contradictory, and systematic reviews and meta-analyses have not found homeopathy to be a definitively proven treatment for any medical condition.
Claims for efficacy of homeopathic treatment beyond the placebo effect are unsupported by the collective weight of scientific and clinical evidence. Common homeopathic preparations are diluted beyond the point where there is any likelihood that molecules from the original solution are present in the final product; the claim that these treatments still have any pharmacological effect is thus scientifically implausible and violates fundamental principles of science, including the law of mass action. While advocates point to positive results as evidence for its efficacy, the number of high-quality studies that support homeopathy is small, the conclusions are not definitive, and duplication of the results, a key test of scientific validity, has proven problematic at best. The lack of convincing scientific evidence supporting its efficacy and its use of remedies without active ingredients have caused homeopathy to be regarded as pseudoscience quackery or, in the words of a 1998 medical review, "placebo therapy at best and quackery at worst."
Hahnemann's concept
Samuel Hahnemann, considered to be the father of homeopathy
Samuel Hahnemann conceived of homeopathy while translating a medical treatise by Scottish physician and chemist William Cullen into German. Being sceptical of Cullenโs theory concerning cinchonaโs action in malaria, Hahnemann ingested some of the bark specifically to see if it cured fever "by virtue of its effect of strengthening the stomach". Upon ingesting the bark, he noticed few stomach law of similars", the most important concept of homeopathy. The term "homeopathy" was coined by Hahnemann and first appeared in print in 1807, although he began outlining his theories of "medical similars" in a series of articles and monographs in 1796.