Fentanyl is a powerful synthetic opioid that is similar to morphine but is 50 to 100 times more potent. It is a prescription drug that is also made and used illegally. Like morphine, it is a medicine that is typically used to treat patients with severe pain, especially after surgery. It is also sometimes used to treat patients with chronic pain who are physically tolerant to other opioids. Tolerance occurs when you need a higher and/or more frequent amount of a drug to get the desired effects.
In its prescription form, fentanyl is known by such names as Actiq®, Duragesic®, and Sublimaze®. Street names for illegally used fentanyl include Apache, China Girl, China White, Dance Fever, Friend, Goodfellas, Jackpot, Murder 8, and Tango & Cash.
Synthetic opioids, including fentanyl, are now the most common drugs involved in drug overdose deaths in the United States. In 2017, 59.8 percent of opioid-related deaths involved fentanyl compared to 14.3 percent in 2010.
How does fentanyl affect the brain?
Like heroin, morphine, and other opioid drugs, fentanyl works by binding to the body’s opioid receptors, which are found in areas of the brain that control pain and emotions.8 After taking opioids many times, the brain adapts to the drug, diminishing its sensitivity, making it hard to feel pleasure from anything besides the drug. When people become addicted, drug seeking and drug use take over their lives.
Fentanyl’s effects include
- extreme happiness
- problems breathing
Can you overdose on fentanyl?
Yes, a person can overdose on fentanyl. An overdose occurs when a drug produces serious adverse effects and life-threatening symptoms. When people overdose on fentanyl, their breathing can slow or stop. This can decrease the amount of oxygen that reaches the brain, a condition called hypoxia. Hypoxia can lead to a coma and permanent brain damage, and even death.
How can a fentanyl overdose be treated?
As mentioned above, many drug dealers mix the cheaper fentanyl with other drugs like heroin, cocaine, MDMA and methamphetamine to increase their profits, making it often difficult to know which drug is causing the overdose. Naloxone is a medicine that can treat a fentanyl overdose when given right away. It works by rapidly binding to opioid receptors and blocking the effects of opioid drugs. But fentanyl is stronger than other opioid drugs like morphine and might require multiple doses of naloxone.
Because of this, if you suspect someone has overdosed, the most important step to take is to call 911 so he or she can receive immediate medical attention. Once medical personnel arrive, they will administer naloxone if they suspect an opioid drug is involved.
People who are given naloxone should be monitored for another two hours after the last dose of naloxone is given to make sure breathing does not slow or stop.
Some states have passed laws that allow pharmacists to dispense naloxone without a personal prescription. This allows friends, family, and others in the community to use the auto-injector or nasal spray versions of naloxone to save someone who is overdosing. People who are or know someone at risk for an opioid overdose can be trained on how to give naloxone and can carry it with them in case of an emergency.
Naloxone is available as an injectable (needle) solution, a hand-held auto-injector (EVZIO®), and a nasal spray (NARCAN® Nasal Spray).
Read more on our Naloxone webpage.
Can fentanyl use lead to addiction?
Yes. Fentanyl is addictive because of its potency. A person taking prescription fentanyl as instructed by a doctor can experience dependence, which is characterized by withdrawal symptoms when the drug is stopped. A person can be dependent on a substance without being addicted, but dependence can sometimes lead to addiction.
Addiction is the most severe form of a substance use disorder (SUD). SUDs are characterized by compulsive drug seeking and drug use that can be difficult to control, despite harmful consequences. When someone is addicted to drugs, they continue to use them even though they cause health problems or issues at work, school, or home. An SUD can range from mild to severe.
People addicted to fentanyl who stop using it can have severe withdrawal symptoms that begin as early as a few hours after the drug was last taken. These symptoms include:
- muscle and bone pain
- sleep problems
- diarrhea and vomiting
- cold flashes with goose bumps
- uncontrollable leg movements
- severe cravings
These symptoms can be extremely uncomfortable and are the reason many people find it so difficult to stop taking fentanyl. There are medicines being developed to help with the withdrawal process for fentanyl and other opioids. The FDA has approved lofexidine, a non-opioid medicine designed to reduce opioid withdrawal symptoms. Also, the NSS-2 Bridge device is a small electrical nerve stimulator placed behind the person’s ear, that can be used to try to ease symptoms for up to five days during the acute withdrawal phase. In December 2018, the FDA cleared a mobile medical application, reSET®, to help treat opioid use disorders. This application is a prescription cognitive behavioral therapy and should be used in conjunction with treatment that includes buprenorphine and contingency management.
How is fentanyl addiction treated?
Like other opioid addictions, medication with behavioral therapies has been shown to be effective in treating people with a fentanyl addiction.
Medications: Buprenorphine and methadone work by binding to the same opioid receptors in the brain as fentanyl, reducing cravings and withdrawal symptoms. Another medicine, naltrexone, blocks opioid receptors and prevents fentanyl from having an effect. People can discuss treatment options with their health provider.
Counseling: Behavioral therapies for addiction to opioids like fentanyl can help people modify their attitudes and behaviors related to drug use, increase healthy life skills, and help them stick with their medication. Some examples include:
- cognitive behavioral therapy, which helps modify the patient’s drug use expectations and behaviors, and effectively manage triggers and stress
- contingency management, which uses a voucher-based system giving patients “points” based on negative drug tests. They can use the points to earn items that encourage healthy living
- Motivational interviewing, which is a patient-centered counseling style that addresses a patient’s mixed feelings to change
These behavioral treatment approaches have proven effective, especially when used along with medicines. Read more about drug addiction treatment in our Treatment Approaches for Drug Addiction DrugFacts.