Differential-diagnosis tool for homeopathy
Differential diagnosis in classical homeopathy is the discipline of choosing among two or three close-running remedies once the repertorisation grid has narrowed the case to a short list. It is the part of the work the rubric chart cannot finish — the moment when Bryonia alba and Rhus toxicodendron both cover the modality, both rank at grade 3, and the prescription turns on a single keynote that has to be confirmed against materia medica rather than the repertory. A differential-diagnosis tool is therefore a comparison surface, not a search engine: its job is to make those final short-list rows easier to weigh side by side.
What a differential-diagnosis tool should do
Five capabilities define a working differential-diagnosis tool. A short-list grid that exposes rubric coverage and grades for the candidate remedies in parallel. Kingdom-and-family filters that group botanically or mineralogically related remedies so the family signature surfaces. An elimination mode that hides remedies missing a confirmed keynote rubric. A miasm read-out that scores the case against Hahnemann's three — or the later five — miasms. And a materia-medica reader that surfaces the author paragraphs Kent, Hering, Boenninghausen, Boger or Vithoulkas wrote about the remedy under consideration. The five together are what differential support means; no single one of them suffices.
| Capability | What it answers |
|---|---|
| Short-list grid | Which short-listed remedy covers the most graded rubrics? |
| Kingdom and family filter | Does the case point to a botanical, mineral or animal family signature? |
| Elimination | Which short-listed remedies fail a confirmed keynote rubric? |
| Miasm scoring | Does the case lean acute, sycotic, syphilitic, tubercular or cancer? |
| Materia medica reader | What did Kent, Hering, Boger or Vithoulkas write about the candidate? |
How Similia handles the work
Similia exposes each of the five capabilities inside one analysis view. The kingdom-and-family filter sits on the analysis toolbar; elimination mode is a single click on the repertorisation toolbar; miasm analysis runs against Kent, Murphy, Complete and Saine rubrics and combines those grades with Hahnemann, Allen, Banerjea, Sankaran and Foubister's literature notes. Materia medica search is a separate workspace with semantic search across Kent, Murphy, Pitt, Mangialavori, Scholten and Vermeulen — the right surface when the short list narrows to two or three remedies and the practitioner needs to confirm a keynote in the authors' own prose.
The free plan opens the classic repertory, the classic materia medica and semantic search. Kingdom-and-family filtering, miasm analysis and the periodic-table family explorer sit on the Pro tier, and the 14-day Pro trial unlocks the full set without a card on file. Practitioners who want to test the close-call workflow on a live case can open the trial with the differential surface fully enabled.
References
Hahnemann, S. (1842) Organon der Heilkunst, 6th edn, on the miasmatic substrate of chronic disease.
Kent, J. T. (1900) Lectures on Homœopathic Philosophy, Lancaster, PA, lectures XXXII–XXXV on close-running differentials in chronic case-taking.
Boericke, W. (1927) Pocket Manual of Homœopathic Materia Medica with Repertory, 9th edn, Boericke & Runyon, Philadelphia.
Hering, C. (1879–1891) The Guiding Symptoms of our Materia Medica, 10 vols, Estate of Constantine Hering, Philadelphia.
Sankaran, R. (2002) An Insight into Plants, vols 1–2, Homoeopathic Medical Publishers, Mumbai, on family signatures in plant remedies.
Vithoulkas, G. (1980) The Science of Homeopathy, Grove Press, New York, on materia-medica confirmation as the final step in remedy selection.