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Australian Journal of Chemistry Australian Journal of Chemistry Society
An international journal for chemical science
REVIEW

Quipazine: Classical hallucinogen? Novel psychedelic?

Richard A. Glennon https://orcid.org/0000-0002-3600-9045 A * and Maƚgorzata Dukat A
+ Author Affiliations
- Author Affiliations

A Department of Medicinal Chemistry, School of Pharmacy, Virginia Commonwealth University, Box 23298, Richmond, VA 23298, USA.




Richard A. Glennon: Following BSc (Pharmacy) and MSc (Medicinal Chemistry) degrees from Northeastern University, he subsequently received his PhD (Medicinal Chemistry) from the State University of New York (SUNY; Buffalo) and obtained an NIH postdoctoral fellowship in psychopharmacology (School of Medicine; SUNY). He joined the Department of Medicinal Chemistry at Virginia Commonwealth University (VCU) as Assistant Professor and eventually achieved the rank of Professor. During his tenure, he served as Department Chair, was Alfred and Frances Burger Distinguished Professor of Medicinal Chemistry and received several honors including induction into the ACS Medicinal Chemistry Hall of Fame. He currently holds an Emeritus Professor position at VCU.



Maƚgorzata Dukat: Subsequent to an engineering (MSc Engineering) degree from T. Kosciuszko Technical University, she obtained her PhD from the prestigious Nicolaus Copernicus Academy of Medicine, Jagiellonian University, Krakow, Poland, and conducted her research at the Institute of Pharmacology, Polish Academy of Science, Krakow. After postdoctoral training in the Department of Medicinal Chemistry, School of Pharmacy and the Department of Pharmacology and Toxicology, School of Medicine at Virginia Commonwealth University (VCU), she was appointed Assistant Professor in the Department of Medicinal Chemistry at VCU where she is currently Associate Professor. She has received several distinctions including the Kosciuszko Eminent Scientist award.

* Correspondence to: glennon@vcu.edu

Handling Editor: Craig Hutton

Australian Journal of Chemistry 76(5) 288-298 https://doi.org/10.1071/CH22256
Submitted: 4 December 2022  Accepted: 28 February 2023   Published: 2 May 2023

© 2023 The Author(s) (or their employer(s)). Published by CSIRO Publishing.

Abstract

Quipazine, first identified in the 1960s, has been the topic of >1000 published papers. On the basis of available 5-HT2 serotonin receptor radioligand binding data and various preclinical studies, it might be thought that quipazine bears the hallmarks of a classical hallucinogen or psychedelic agent – agents currently being examined for their potential use in treating certain neuropsychiatric disorders. Nevertheless, by definition, such agents require the availability of human data, which, in the case of quipazine, are lacking. Because quipazine is also a 5-HT3 receptor agonist, future human studies with this agent might prove problematic because 5-HT3 agonists are known to produce emesis. Nevertheless, continued investigation of novel quipazine analogs with modified pharmacological profiles might prove worthwhile.

Keywords: 5-HT2, 5-HT3, antidepressants, arylpiperazines, drug discrimination, head-twitch assay, indolealkylamines, l.s.d., neuropsychiatric agents, phenylalkylamines, quipazine, serotonin receptors.


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