Med Ges Gesch. 1995 ; 13(): 135-66.
In Samuel Hahnemann's French medical diaries, which are owned by the Institute for the History of Medicine of the Robert Bosch Foundation in Stuttgart, 681 prescriptions of Q-potencies, complying with the findings of the 6th edition of the Organon, were identified and listed. The first of these originates in 1838, the last in 1843. This corresponds with Hahnemann's statement that he had gathered four to five years' experience with his "modified, new perfected method" (dynamisation method). According to his data, Hahnemann prescribed sulphur three times more than all other medicines put together, followed by calcarea as the second most prescribed substance. No higher potencies thaan Q8 could be determined. By far the largest number of prescriptions of Q-potenciess are to be found in the as-yet unpublished case-books 13 and 14.