Fragmenta de viribus

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Fragmenta de viribus is a homeopathic reference book published in Leipzig in 1805. The book was written by Dr. Samuel Hahnemann and published in Latin, in two volumes, with the full title Fragmenta de viribus medicamentorum: positivis sive in sano corpore humano observatis (Fragmentary Observations relative to the Positive Powers of Medicines on the healthy Human Body). The first volume lists the detailed symptoms caused by 27 different drugs.[1][2]"The frequently appearing symptoms were stressed by italics....the second volume contains the totality of the symptoms in alphabetical order."[3]

The book lists the health effects of 27 drugs in common use as recorded in the medical literature along with Hahnemann's own observations from taking the drugs himself: "The first collection of the effects of medicines...according to his own observations and those of others was, as is well known, published in the work, Fragmenta de viribus medicamentorum, 1805."[4] These were "medicinal substances whose pure pathogenetic action he had ascertained by experiments on himself, his family, and a few friends."[5] The book makes no mention of homeopathy or any theories of cure and makes no claims about their uses. However, it is widely regarded as the forerunner of his Materia Medica Pura, part one of which was published in 1811: "the Materia Medica Pura had had its precursor in the Fragmenta." [6] "The work, begun in the "Fragmenta," was continued in the "Materia Medica Pura," the first volume of which appeared in 1811 followed by five more volumes up to 1821." [7]


  1. ^ Edinburgh Medical and Surgical Journal, Review of Fragmenta de viribus of Hahnemann, Vol. 5, July 1809, pp.374-379
  2. ^ The Medical Quarterly Review, Review of the Fragmenta de viribus of Hahnemann, (English translation by Dr FHH Quin, 1834, London), Vol. III, October 1835, pp.149-151
  3. ^ Rudolf Tischner, History of Homeopathy (trans. L J Boyd), New York: AIH, 1933, p.269
  4. ^ Wilhelm Ameke, History of Homœopathy, with an appendix on the present state of University medicine, translated by A. E. Drysdale, edited by R. E. Dudgeon, London: E. Gould & Son, 1885, p.177
  5. ^ Robert E Dudgeon, Lectures on the Theory and Practice of Homeopathy, London & Manchester: Henry Turner & Co, 1853, p.181
  6. ^ Linn J Boyd, A Study of the Simile in Medicine, Philadelphia: Boericke & Tafel, 1936, p.149
  7. ^ Tischner, p.395

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