# Rudolf Arndt

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German psychiatrist (1835–1900)

Rudolf Arndt

**Rudolf Gottfried Arndt** (31 March 1835 – 29 January 1900) was a German [psychiatrist](/source/Psychiatrist) from [Bialken](/source/Bia%C5%82ki%2C_Pomeranian_Voivodeship), [district of Marienwerder](/source/Marienwerder_(district)).

## Biography

Arndt studied in [Greifswald](/source/Greifswald) and [Halle](/source/Halle%2C_Saxony-Anhalt). As a student, his instructors included [Felix von Niemeyer](/source/Felix_von_Niemeyer) (1820–1871), [Heinrich Adolf von Bardeleben](/source/Heinrich_Adolf_von_Bardeleben) (1819–1895), and [Heinrich Philipp August Damerow](/source/Heinrich_Philipp_August_Damerow) (1798–1866).[1] He was conferred [doctor](/source/Physician) of [medicine](/source/Medicine) on 20 February 1860. From 1861 he maintained a private practice, and also participated in the [Second Schleswig War](/source/Second_Schleswig_War) (1864), [Austro-Prussian War](/source/Austro-Prussian_War) (1866) and [Franco-Prussian War](/source/Franco-Prussian_War) (1870–71).

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

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

## Awards and decorations

- [Order of the Crown](/source/Order_of_the_Crown_(Prussia)), 4th class with Swords (Prussia, 1866)

- [Iron Cross](/source/Iron_Cross) of 1870, 2nd class on white-black band (Prussia, 1871)

- Knight's Cross, First Class of the [Order of the Zähringer Lion](/source/Order_of_the_Z%C3%A4hringer_Lion) (Baden)

## Selected writings

- *Aus einem apoplectischen Gehirn*, 1878 - On the [apoplectic](/source/Apoplectic) brain.

- *Die Neurasthenie (Nervenschwäche), ihr Wesen, ihre Bedeutung und Behandlung*, 1885 - [Neurasthenia](/source/Neurasthenia) (nerve weakness), its nature, its meaning and treatment.

- *Der Verlauf der Psychosen*, 1887 (with August Dohm) - The course of [psychosis](/source/Psychosis).

- *Was sind Geisteskrankheiten?*, 1897 - What is [mental illness](/source/Mental_illness)? [7]

## See also

- [Arndt-Schulz rule](/source/Arndt-Schulz_rule)

## References

1. **[^](#cite_ref-1)** [Pagel: Biographical Dictionary outstanding physicians of the nineteenth century. Berlin, Vienna, 1901, 44-45 Sp.](http://www.zeno.org/Pagel-1901/A/Arndt,+Rudolf) (biography)

1. **[^](#cite_ref-2)** [NDB/ADB Deutsche Biographie](http://www.deutsche-biographie.de/sfz1253.html) (biography)

1. **[^](#cite_ref-3)** [Rudolf Arndt](http://www.whonamedit.com/doctor.cfm/267.html) @ [Who Named It](/source/Who_Named_It)

1. **[^](#cite_ref-4)** [Medical Dictionary](http://medical-dictionary.thefreedictionary.com/Arndt-Schulz+law) Arndt-Schulz rule

1. **[^](#cite_ref-5)** [Google Books](https://books.google.com/books?id=ryJAAAAAYAAJ&dq=%22Rudolf+Arndt%22+neurasthenia&pg=PA978) Diseases of the Nervous System by Archibald Church

1. **[^](#cite_ref-6)** [Man and Woman: Study of Human Secondary Sexual Characters by Havelock Ellis](https://books.google.com/books?id=PW4uAAAAYAAJ&dq=%22Rudolf+Arndt%22+neurasthenia&pg=PA322)

1. **[^](#cite_ref-7)** [IDREF.fr](http://www.idref.fr/034970711) (bibliography)

Authority control databases International ISNI VIAF GND WorldCat National United States France BnF data Czech Republic Netherlands Academics International Plant Names Index People Deutsche Biographie DDB Other IdRef SNAC Yale LUX

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