a doctor explaining to a patient what is fentanyl

What is Fentanyl?

What is Fentanyl? Fentanyl is a synthetic opioid commonly used as a pain killer. A doctor prescribes it for patients recovering from surgery as a short-term aid. Fentanyl also works for chronic pain as a long-term treatment option. It has a much higher potency than morphine, another common opioid prescribed to treat pain. Users of…