Fragmenta de viribus is a homeopathic reference book published in Leipzig in 1805. The book was written by 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."The frequently appearing symptoms were stressed by italics. ... the second volume contains the totality of the symptoms in alphabetical order."