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Department of Emergency Medicine

Section of Medical Toxicology

Medical Toxicology

The medical toxicology section supports education in toxicology for a wide variety of learners including medical students, emergency medicine residents, pediatric emergency medicine fellows, other medical and pediatric residents and fellows, PharmD students, and PharmD residents. 


Interested in a toxicology rotation? 


The toxicology consult service is available to see patients admitted to the University Hospital or Primary Children's Hospital. 


Dr. Michael Moss

Michael Moss, MD, FAACT

Assistant Professor, Toxicology Section Chief

Dr. Alyrene Dorey

Alyrene Dorey, MD

Assistant Professor

Carl Skinner, MD

Clinical Attending

Michael Moss, MD, FAACT

Dr. Moss is medical director of the Utah Poison Control Center. He is board certified in medical toxicology, addiction medicine, and emergency medicine. He provides toxicology consults at University Hospital and Primary Children's Hospital and also works on the University addiction consult service. 

Dr. Moss coordinates the toxicology portion of emergency medicine resident conference and coordinates toxicology rotations for EM interns and pediatric EM fellows. 

His research interests include novel psychoactive substances, cannabis, and poison center based studies. 

He serves on the hospital Adverse Drug Reactions Committee, Utah Drug Monitoring Initiative, Utah Lead Coalition, and Utah Cannabis Research Review Board. 

Dr. Moss attended medical school at The Ohio State University College of Medicine, completed emergency medicine residency and served as chief resident at Virginia Commonwealth University, and completed medical toxicology fellowship at Oregon Health & Science University. 

Alyrene Dorey, MD

Dr. Dorey attended medical school at the University of Colorado and completed Emergency Medicine residency and Medical Toxicology fellowship at the University of California, Davis. She is the Assistant Medical Director of the Utah Poison Control Center and the course director for Introduction to Medical Toxicology, and elective available to medical students in their fourth year of training. 

Her interests include medical education, pharmacotherapy, quality improvement and envenomations. 



Ongoing Projects

Novel Psychoactive Substances Surveillance - screening patients with suspect novel substance use for drugs not detected on routine testing to identify emerging trends in drug use. 

Recent Publications

  1. Moss MJ, Bushlin I, Kazmierczak S, Koop D, Hendrickson RG, Zuckerman KE, Grigsby TM (2021). Cannabis use and measurement of cannabinoids in plasma and breast milk of breastfeeding mothers. Pediatr Res.
  2. Giannouchos TV, Biskupiak J, Moss MJ, Brixner D, Andreyeva E, Ukert B (2020). Trends in outpatient emergency department visits during the COVID-19 pandemic at a large, urban, academic hospital system. Am J Emerg Med40, 20-26.
  3. Grigsby TM, Hoffmann LM, Moss MJ (2020). Marijuana Use and Potential Implications of Marijuana Legalization. Pediatr Rev41(2), 61-72.
  4. Moss MJ, Hendrickson RG, Toxicology Investigators Consortium ToxIC (2019). Serotonin Toxicity: Associated Agents and Clinical Characteristics. J Clin Psychopharmacol39(6), 628-633.
  5. Amirshahi MM, Moss MJ, Smith SW, Nelson LS, Stolbach AI (4/4/2019). ACMT Position Statement: Addressing Pediatric Cannabis Exposure. J Med Toxicol15(3), 212-214.
  6. Moss MJ, Fisher JA, Kenny TA, Palmer AC, Thompson JA, Wolfer H, Hendrickson RG (2019). Salicylate toxicity after undetectable serum salicylate concentration: a retrospective cohort study. Clin Toxicol (Phila)57(2), 137-140.
  7. Moss MJ, Hendrickson RG (2019). Toxicity of muscimol and ibotenic acid containing mushrooms reported to a regional poison control center from 2002-2016. Clin Toxicol (Phila)57(2), 99-103.
  8. Moss MJ, Warrick BJ, Nelson LS, McKay CA, Dub PA, Gosselin S, Palmer RB, Stolbach AI (2018). ACMT and AACT position statement: preventing occupational fentanyl and fentanyl analog exposure to emergency responders. Clin Toxicol (Phila)56(4), 297-300.
  9. Moss MJ, Maskell KF, Hieger MA, Wills BK, Cumpston KL (2017). An algorithm for identifying mothball composition. Clin Toxicol (Phila)55(8), 919-921.
  10. Hieger MA, Maskell KF, Moss MJ, Powell SW, Cumpston KL (2017). Dofetilide in Overdose: A Case Series from Poison Center Data. Cardiovasc Toxicol17(3), 368-371.


  1. Smalley CM, Dorey A, Thiessen M, Kendall JL (2016). A Survey of Ultrasound Milestone Incorporation Into Emergency Medicine Training Programs. J Ultrasound Med35(7), 1517-21.
  2. Greenwood BN, Strong PV, Dorey AA, Fleshner M (2007). Therapeutic effects of exercise: wheel running reverses stress-induced interference with shuttle box escape. Behav Neurosci121(5), 992-1000.