Rudolf Arndt

Arndt studied in Greifswald and Halle. As a student, his instructors included Felix von Niemeyer (1820–1871), Heinrich Adolf von Bardeleben (1819–1895), and Heinrich Philipp August Damerow (1798–1866).[1] He was conferred doctor of medicine on 20 February 1860. From 1861 he maintained a private practice, and also participated in the Second Schleswig War (1864), Austro-Prussian War (1866) and Franco-Prussian War (1870–71).

In 1867 he obtained his habilitation, subsequently serving as director of the Irren-Heil- und Pflege-Anstalt in Greifswald. In 1873 he became an associate professor of psychiatry at Greifswald.[2] He died of angina pectoris.[3]

He is known today for the "Arndt-Schulz rule", a pharmacologic principle of homeopathy that is named in conjunction with German chemist Hugo Schulz (1853-1932).[4] He is also remembered for his investigations of neurasthenia.[5][6]

• Order of the Crown, 4th class with Swords (Prussia, 1866)
• Iron Cross of 1870, 2nd class on white-black band (Prussia, 1871)
• Knight's Cross, First Class of the Order of the Zähringer Lion (Baden)

• Aus einem apoplectischen Gehirn, 1878 - On the apoplectic brain.
• Die Neurasthenie (Nervenschwäche), ihr Wesen, ihre Bedeutung und Behandlung, 1885 - Neurasthenia (nerve weakness), its nature, its meaning and treatment.
• Der Verlauf der Psychosen, 1887 (with August Dohm) - The course of psychosis.
• Was sind Geisteskrankheiten?, 1897 - What is mental illness? [7]

• Arndt-Schulz rule