Diagnosis, potency & prescribing of the Schüssler tissue salts
In the application of his treatment approach, Schüssler made use of a quite different diagnostic tool in the appraisal of a patients case, had general ideas of the potencies to utilize, and no specific recommendation of a particular mode of prescribing of his tissue salts.
Schüsslers diagnostic aid
Schüssler recommended the use of facial analysis to recognise the mineral deficit prevalent in a patient, and to subsequently identify the appropriate prescription. [4, 5]. He describes in his booklet  that the power of observation permits an attentive practitioner to recognise in the countenance of the patient which functional remedy corresponds to the presenting case of illness .
According to Schüssler, changes in the texture of the skin, eczema or exudation could be signs of specific deficits of minerals in the organism, and the expansion of such appearance could indicate the extent of deficit of a specific salt [1, 5]. As such, a deficit in Magnesium phosphoricum could be identified by a gentle redness of the cheeks, on either side of the nose, or a facial rubescence of suddenly rising blotches . Molineus  calls these “hectic blotches” (p.24). A lack of Kalium muriaticum, on the other hand, gives the patient a milky cloured palour, beneath which smaller blood vessles are accentuated in a bluish hue. This is particularly expressive below the lower eyelid .
Schüssler emphasises in his writings  that solely autodidactic apprehension can provide the prescriber with the ability to recognise the different remedy-faces, and further stresses that this diagnostic approach is never a stand alone tool .
Helmstädter  points out in his paper on Schüssler, that the latter customarily employed tongue diagnosis to aid in his case-taking and remedy selection. In Schüsslers own writings, and other sources on the functional remedies, there has been no reference to his use of the appearance of the tongue as a diagnostic aid.
Schüsslers recommended potencies
While he propagated much freedom in the choice of potency of his tissue salts, Schüssler himself generally resorted to the D/X 6, D/X 12 and occassionally the D/X 3 or D/X 4 . Yet, he has been found to stress in his writings, that it be more beneficial to use higher potencies as opposed to lower, and to administer more repetitions of the higher potencies .
Prescribing – how many and when?
There is little on dosis and repetition to be found in his booklet . However, Schüssler makes a point that the administration of two of his tissue remedies alternatingly, should be avoided. Only in exceptional cases is such prescribing permitted .
Over the years different modes of prescribing have been adopted, and there are multiple sources recommending inconsistent patterns of administration of the Schüssler remedies. One rule of thumb is the following :
– Acute: 1 tablet/pill every 5 to 10 Minutes until symptoms are improving.
– Chronic: 1 – 2 tablets, 3 to 6 times a day.
 Helmstädter, A. (2007) Ein Therapeut als Kind seiner Zeit [online] Pharmazeutische Zeitung online Ausgabe 51, last accessed March 2015 at URL: http://www.pharmazeutische-zeitung.de/index.php?id=4367
 Helmstädter, A. (2006) Das “biochemische” Heilverfahren nach Wilkelm Heinrich Schüßler und seine Weiterentwicklung durch Dietrich Schöpwinkel [online] Gesnerus Vol. 63, pp. 240-258 , last accessed March 2015 at URL: http://www.gesnerus.ch/fileadmin/media/pdf/2006_3-4/240_258_Helmstaedter.pdf
 Asam, M. (n.d.) Grundlagen der Biochemie nach Dr. Schüßler [online] Pharmazeutische Wissenschaft last accessed March 2015 at URL: http://www.storckverlag.de/wp-content/uploads/2012/09/Apotheken-Magazin-10-2012-Fortbildungsartikel.pdf
 Schüssler, W.H. (1906) Eine Abgekürzte Therapie, Auflage 33, Schulzesche Hof-buchhandlung und Hof-druckerei, Oldenburg und Leipzig. Available from: archive.org [21 January 2015].
 Molineus, S. (2006) Gesichter sprechen Bände. Karlsruhe: Deutsche Homöopathie-Union.
 Biochemischer Gesundheitsverein e.V. (n.d.) Schüßler-Salze – Heilanwendungen mit den Biochemischen Funktionsmitteln nach Dr. Schüßler. Available from: www.biochemie-online.de/download/Schuessler-Salze.pdf [21. January 2015].
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