Division of Clinical Pharmacology & Toxicology

Dan Perri


Associate Professor, Department of Medicine
Divisions of Critical Care Medicine and Clinical Pharmacology & Toxicology



Education and Professional Standing

Dr. Dan Perri completed pharmacy and medical training at the University of Toronto. This was followed by postgraduate training in internal medicine, clinical pharmacology, and critical care medicine undertaken at McMaster University and the University of Toronto. During his subspecialty training, he was also a Fellow in Medication Safety at the Institute for Safe Medication Practices Canada (ISMP-Canada).

Dr. Perri is currently an Assistant Professor in the Department of Medicine with clinical and research activities in the Divisions of General Internal Medicine, Critical Care Medicine and Clinical Pharmacology and Toxicology. He is completing his graduate work in medication error at the University of Toronto’s Leslie Dan Faculty of Pharmacy in association with ISMP Canada.

Research Interests

Dr. Perri is interested in the safe and appropriate use of medications in critically ill patients. His current research examines the translation of medication safety interventions from the literature to the bedside and the role of human factors in medication errors. Within therapeutics, he is interested in the appropriate use of sedatives, analgesics, and antimicrobials in the ICU.

Dan is also interested in assessing the safety and efficacy of natural medicines. He is involved in several clinical trials with investigators at the Canadian College of Naturopathic Medicine and collaborates with members of Motherisk at the Hospital for Sick Children in Toronto in work that examines the safety of natural health products in pregnancy and lactation.

Selected Publications

  1. Perri D, Dugoua JJ, Mills E, Koren G. Safety and efficacy of echinacea (Echinacea angustafolia, e. purpurea and e. pallida) during pregnancy and lactation. Can J Clin Pharmacol. 2006; 13:e262-7.
  2. Koczmara C, Jelincic V, Perri D. Communication of medication orders by telephone--"writing it right". Dynamics. 2006; 17:20-4
  3. Koczmara C, Perri D, Hyland S, Rousseaux L. Meperidine (Demerol) safety issues. Dynamics. 2005; 16: 8-12.
  4. Mills E, Montori V, Perri D, Phillips E, Koren G. Natural health product-HIV drug interactions: a systematic review. Int J STD AIDS. 2005; 16: 181-6.
  5. Mills E, Loke YK, Wu P, Montori VM, Perri D, Moher D, Guyatt G. Determining the reporting quality of RCTs in clinical pharmacology. Br J Clin Pharmacol. 2004; 58: 61-5.
  6. Perri D, Ito S, Rowsell V, Shear NH. The kidney--the body's playground for drugs: an overview of renal drug handling with selected clinical correlates. Can J Clin Pharmacol. 2003; 10: 17-23.