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Homeopathy: Medicine for the 21st Century

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Defending Choice in Medicine

H:MC21 is a charity established to counter the unfounded propaganda against homeopathy by informing the public of the facts about homeopathy and its historical and scientific relationship to orthodox medicine.

It will do this through research, publication and campaigning.

Clicking on the links below will take you directly to various aspects of our campaign

Follow us on Twitter at @HMC21org

Publications

Nonsense, Not Science

 Halloween Science

Pilot survey of PCTs

Edzard Ernst interview

 Resource pack

CS&TC Report

CS&CT Evidence Check

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Charity no. 1124711
Registered address: Poppyseed Cottage,
High Street, Stoke Ferry, Norfolk PE33 9SF

Potency

There are three scales of homeopathic potencies, with succussion or agitation performed at each step of dilution:
 

  • Decimal (x) scale - dilutions are made at the rate of 1:10, so 3x = 1:1,000;
  • Centesimal (c) scale - dilutions are made at the rate of 1:100, so 2c = 1:10,000;
  • LM (or Q) scale - dilutions are made at the rate of 1:50,000, so LM2 = 1:2,500,000,000.
    • The decimal and centesimal potency scales perform similarly, and certain potencies have been found to be more generally effective than others. [1,2] The most commonly used potencies in the UK are 3x, 6x, 6c, 12c, 30c, 200c, 1m (1,000c) and 10m(10,000c), though higher potencies and potencies in between these ones are also used on occasions. These potencies are usually given in single doses at intervals which depend on the individual’s reaction, with the interval and the possible repetition of a particular potency depending on the nature of the symptoms, the potency and other factors.

      On the other hand the LM scale has a very different pattern of prescription, since a prescribed LM potency is regularly repeated, being succussed and often then diluted by the patient before taking each dose. Prescriptions start with one potency (usually LM1) and then step up to the next (i.e. LM2, LM3, etc.) as needed. The reactions to centesimal (and decimal) and LM potencies are generally different. [3]

      References
      1. James Tyler Kent, New Remedies, Clinical Cases, Lesser Writings, Aphorisms and Precepts (New Delhi: B. Jain Publishers, repr. edn 2001), pp. 358-59.
      2. Michel Schiff, The Memory of Water: Homoeopathy and the battle of ideas in the new science (London: Thorsens, 1994), pp. 25-28.
      3. Robert Barker, LM Potencies: A selection of articles giving a practical guide to their use (Sheringham: The Homoeopathic Supply Company, 1997)

      Related pages:
      Why it works

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