1. Product Monograph Janssen-Ortho Inc. Markham, ON. Revised May 2008.
2. Association of transdermal fentanyl and oral transmucosal fentanyl citrate in the treatment of opioid naive patients with severe chronic non cancer pain;Collado;J Opioid Manag,2008
3. US Food and Drug Administration. 2005 safety alerts for drugs, biologics, medical devices, and dietary supplements. Available at: http://www.fda.gov/medWatch/SAFETY/2005/safety05.htm. Accessed October 29, 2008.
4. Fentanyl patch linked to another death in Canada;The Institute for Safe Medication Practices Canada (ISMP Canada),2007
5. Neonatal abstinence syndrome due to prolonged administration of fentanyl in pregnancy;Regan;BJOG,2000