{{Short description|German chemist (1853–1932)}} '''Hugo Paul Friedrich Schulz''' (August 6, 1853 – July 13, 1932) was a German [[pharmacology|pharmacologist]] from [[Wesel]], [[Rhenish Prussia]]. [[File:Greifswald Bahnhofstraße 51 Tafel Schulz.JPG|right|thumb|Commemorative plaque for Schulz at Bahnhofstraße 51 in Greifswald.]] He studied medicine in the universities of [[University of Heidelberg|Heidelberg]] and [[University of Bonn|Bonn]], where he did scientific work in the [[physiology|physiological]] institute of [[Eduard Friedrich Wilhelm Pflüger]] (1829-1910). In 1877 he earned his doctorate, and afterwards worked in the pharmacological institute of [[Karl Binz]] (1832-1913) at [[Bonn]]. In 1883 he was appointed professor of pharmacology at the [[University of Greifswald]].
Schulz is known for his research of a [[phenomenon]] known as [[hormesis]], showing that the effect of toxins in small doses can be the opposite of their effect in large doses. He demonstrated this in experiments using chemical compounds on [[yeast]] cells.<ref>[https://books.google.com/books?id=RI4otfaJW4MC&pg=PA840 Encyclopedia of Quantitative Risk Analysis and Assessment, Volume 1] edited by Edward L. Melnick, Brian S. Everitt</ref> From his research came the "[[Arndt-Schulz rule]]", a law concerning dosages in [[toxicology]], named along with Dr. [[Rudolf Arndt]] (1835-1900).
Schulz published a number of works in the field of pharmacology, including the well-regarded ''Pharmakotherapie'' (1898), a treatise that was included in [[Albert Eulenburg]]'s ''Handbuch der allgemeinen Therapie und der therapeutischen Methodik''.<ref>[https://books.google.com/books?id=uslXAAAAMAAJ&pg=PA509 The North American journal of homeopathy 1906]</ref>
==Works== * ''Die officinellen Pflanzen und Pflanzenpräparate : zum Gebrauch für Studirende und Ärzte übersichtlich zusammengestellt'' . Bergmann, Wiesbaden 1885 [http://nbn-resolving.de/urn:nbn:de:hbz:061:2-10230 Digital edition] by the [[University and State Library Düsseldorf]]
==References== * [http://www.whonamedit.com/doctor.cfm/724.html ''Hugo Paul Friedrich Schulz''] @ [[Who Named It]] {{reflist}}
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{{DEFAULTSORT:Schulz, Hugo Paul Friedrich}} [[Category:1853 births]] [[Category:1932 deaths]] [[Category:19th-century German chemists]] [[Category:German pharmacologists]] [[Category:People from Wesel]] [[Category:People from the Rhine Province]] [[Category:Heidelberg University alumni]] [[Category:University of Bonn alumni]] [[Category:Academic staff of the University of Greifswald]] [[Category:20th-century German chemists]]
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