Fentanyl belongs to a class of pain medications and anesthetic drugs called opioids. Opioids are drugs that work on the brain and nervous system. It helps to alleviate pain and to induce anesthesia.


Fentanyl is produced in many different forms. This includes a transdermal (skin) patch, injection. It can be consumed as a liquid that gets absorbed through the membranes of the mouth. Fentanyl is one of the most commonly-used synthetic opioids in medicine. The World Health Organization (WHO) lists Fentanyl on its List of Essential Medicines.

1. Uses

Fentanyl is prescribed to relieve severe and continuing pain. People with cancer experience this type of pain. It works in the brain and nervous system. It changes the way body responds to and experiences pain.


Your healthcare provider will only prescribe Fentanyl for on-going pain. Its effects last for a relatively short period. It loses its effect when a time-release dosage is given. This makes it ideal for pain relief before and immediately after surgery. It acts as a supplementary pain reliever in general or regional anesthesia. It is also used with other medications to induce and maintain anesthesia.