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What is Homeopathy?

Homeopathy is a system of medicine that originated in Germany with the physician Samuel Hahnemann (1755–1843). It is based primarily on the principle of similars, often expressed as similia similibus curentur — “like cures like.”

The basic idea is that a substance capable of producing a particular pattern of symptoms in a healthy person may, when carefully prepared and appropriately prescribed, be used to treat a similar pattern of symptoms in a person who is ill.

Homeopathy is therefore different from simply choosing a medicine for a diagnosis. The individual pattern of the person’s symptoms is central to selecting the remedy.

Individualized Homeopathy

In classical or individualized homeopathy, two people with the same medical diagnosis may receive completely different remedies.

• The specific characteristics of the person’s symptoms
• What makes the symptoms better or worse
• The timing and circumstances of the symptoms
• Physical and emotional characteristics
• General patterns of health and illness
• The person’s individual response to stress, environment, temperature, sleep, food, and other influences

The goal is to identify the homeopathic remedy whose known pattern most closely corresponds to the individual’s overall symptom picture.

What are Homeopathic Remedies?

Homeopathic remedies are prepared from substances of mineral, plant, animal, or other natural origin. They undergo a specific process of serial dilution and succussion (vigorous shaking) known as potentization.

Homeopathic potencies are expressed using designations such as 6X, 12X, 30C, 200C, or 1M. These numbers describe the method and degree of serial dilution used in preparing the remedy. Different potencies are used according to the remedy, the individual case, and the prescribing approach.

Homeopathic remedies are not the same thing as herbal medicines. An herbal preparation generally contains measurable amounts of the original plant constituents, whereas a highly potentized homeopathic remedy may contain little or none of the original starting substance.

Homeopathy and Research

Homeopathy has been the subject of clinical research for more than a century, including randomized controlled trials and systematic reviews. Research has examined both individualized homeopathy and more standardized, non-individualized approaches.

Importantly, research on individualized homeopathy is not identical to research on giving everyone with a particular diagnosis the same homeopathic product. Several systematic reviews have specifically examined individualized prescribing.

For example, a 2014 systematic review and meta-analysis of 32 randomized controlled trials of individualized homeopathy reported findings favoring individualized homeopathic treatment over placebo, while also noting limitations in the quality and consistency of the available studies.

A 2023 systematic review examined previous meta-analyses of randomized placebo-controlled homeopathy trials and reported statistically significant positive effects in the meta-analyses reviewed, including those examining individualized homeopathy.

Homeopathy therefore remains an area of ongoing scientific investigation, particularly regarding the mechanisms of highly potentized remedies and the clinical effects of individualized prescribing.

Selected References

  • Mathie RT, et al. Randomised placebo-controlled trials of individualised homeopathic treatment: systematic review and meta-analysis. Systematic Reviews. 2014;3:142. PubMed: https://pubmed.ncbi.nlm.nih.gov/25480654/
  • Mathie RT, et al. Systematic Review and Meta-Analysis of Randomised, Other-than-Placebo Controlled, Trials of Individualised Homeopathic Treatment. Complementary Medicine Research. 2018. PubMed: https://pubmed.ncbi.nlm.nih.gov/30121049/
  • Mathie RT, et al. Efficacy of homoeopathic treatment: Systematic review of meta-analyses of randomised placebo-controlled homoeopathy trials for any indication. 2023. PubMed: https://pubmed.ncbi.nlm.nih.gov/37805577/
  • Linde K, Melchart D. Randomized controlled trials of individualized homeopathy: a state-of-the-art review. Journal of Alternative and Complementary Medicine. 1998. PubMed: https://pubmed.ncbi.nlm.nih.gov/9884175/