Fentanyl is one of the strongest opioids available in the market. Fentanyl is used for the break-through pain. It means that the patient is taking another opioid painkiller but the temporary intervals of severe pain are treated with Fentanyl. The medical use is also not safe for the long durations. Besides the general population, every sector of the population from the anesthesiologists to the physicians are also been reported of abusing the drug. In addition to the pain relieving properties of Fentanyl, it elicits a very powerful feeling of euphoria. Those who want to get a recreational high, often take Fentanyl. No matter the misuse is of medical prescriptions or for the recreational purposes, the risks and side effects remain the same. It is a very dangerous drug even in smaller doses than that of heroin. An overdose of the drug can lead to a sudden death.