Cannabinoid Hyperemesis Syndrome and the Consulting Psychiatrist A Case Study of Diagnosis and Treatment for an Emerging Disorder in Psychiatric PracticeKAST, KRISTOPHER A., MD; GERSHENGOREN, LILIYA, MD, MPHJournal of Psychiatric Practice®: January 2018 - Volume 24 - Issue 1 - p 51–55 doi: 10.1097/PRA.0000000000000279 CLINICAL CASE DISCUSSIONS Buy Abstract Author InformationAuthors Article MetricsMetrics The increasing prevalence of cannabis use in the United States requires awareness of cannabis-related disorders and familiarity with treatment options. We present a case of cannabinoid hyperemesis syndrome that required psychiatric consultation for diagnostic clarification and effective treatment with intravenous haloperidol. Literature from emergency medicine, toxicology, and gastroenterology is reviewed, including proposed diagnostic criteria for cannabinoid hyperemesis syndrome and reported off-label treatment options, with a specific focus on clinical questions facing the practicing psychiatrist regarding this emerging disorder. KAST and GERSHENGOREN: Department of Psychiatry, Weill Cornell Medical College and New York-Presbyterian Hospital-Weill Cornell Medical Center, New York, NY The authors declare no conflicts of interest. Please send correspondence to: Kristopher A. Kast, MD, Department of Psychiatry, Weill Cornell Medical College and Payne Whitney Clinic of New York-Presbyterian Hospital-Weill Cornell Medical Center, 525 E. 68th Street, Box 140, New York, NY 10065 (e-mail: email@example.com). Copyright © 2018 Wolters Kluwer Health, Inc. All rights reserved.