How does fentanyl work?
Fentanyl is a type of strong painkiller known as an opioid or opiate. Opioids work by mimicking the action of natural pain-reducing compounds called endorphins, which are produced in the brain and spinal cord.
Fentanyl acts on the same opioid receptors as our natural endorphins. It stops pain signals being sent by the nerves to the brain. This means that even though the cause of the pain may remain, less pain isactually felt.
How is fentanyl injection given?
Fentanyl is injected into a muscle, or into a vein through an IV.