Transdermal fentanyl (Duragesic and generic) has limited use for treatment of chronic pain. Transdermal fentanyl is a short-acting opioid packaged in a long-acting delivery system, making patients on it especially prone to development of opioid tolerance. Tolerance, as defined by either of the following: (a) a need for markedly increased https://hansv604tdm0.wikigiogio.com/user