Mylan Fentanyl Patches: Severe Chronic Pain Management Mylan fentanyl transdermal patches are a potent opioid delivery system designed for patients with severe, around-the-clock chronic pain who are already opioid-tolerant. This Schedule II controlled substance requires extreme caution and professional medical supervision. Critical Safety Notice: Fentanyl is 50-100 times more potent than morphine. These patches are: Not [...]