What Is Fentanyl? A Powerful Drug That’s Often Abused

What Is Fentanyl?
How Fentanyl Works in the Body
Why Is Fentanyl So Dangerous?
“People can be unintentionally exposed to fentanyl,” says Lindsey Vuolo, MPH, vice president of health law and policy at the Partnership to End Addiction. “Overdoses can happen very quickly, in a matter of minutes.”
How and Why Is Fentanyl Abused?
Fentanyl can be injected, snorted, sniffed, smoked, taken orally by pill or tablet, or spiked onto blotter paper. Fentanyl patches are abused by removing its gel contents and then injecting or ingesting it.
What makes fentanyl so addictive is that it’s cheap and it can produce an intense high with just a small amount, even at a much lower dose than heroin. Abusing fentanyl can build up a tolerance to the drug, which increases the risk of overdosing. Many people may not even be aware they are abusing fentanyl. They may think they are taking heroin, Percocet, or Xanax.
Are Fentanyl-Related Compounds Just as Dangerous?
How to Recognize and Help Someone Who Is Overdosing on Fentanyl
- Loss of consciousness
- Unresponsiveness
- Awake but unable to talk
- Breathing that is very slow and shallow, erratic, or has stopped
- Choking sounds, or a snore-like gurgling noise (sometimes called the “death rattle”)
- Vomiting
- Body that is limp
- Face that is pale or clammy
- Small, “pinpoint” pupils
- Lips or nails turning blue
Naloxone (Narcan) is a medication that rapidly reverses the effects of opioid overdose. The drug can potentially save a person’s life, although multiple doses may be required for it to work successfully. Naloxone works only on people who have opioids in their system and has no harmful effects if given to someone who does not have opioids in their system. You don’t need to be a medical professional to administer naloxone to someone having an overdose.
There are various treatment options for fentanyl dependence, including medication, counseling, and cognitive behavioral therapy. It’s important to remember that opioid addiction is a chronic condition. Treatment will likely require a combination of approaches and long-term follow-up.
Additional reporting by Shira Feder.

Heidi Green, MD
Medical Reviewer
In her private practice, Dr. Green provides psychiatric consultative services and offers an office-based buprenorphine maintenance program to support recovery from opioid addictions. She enjoys offering lifestyle medicine consultation to those interested in maximizing their emotional and physical health by replacing unhealthy behaviors with positive ones, such as eating healthfully, being physically active, managing stress, avoiding risky substance use, improving sleep, and improving the quality of their relationships.
At the opioid treatment programs, Green serves as medical director, working with a team of counselors, nurses, and other medical providers. The programs provide evidence-based treatment (including buprenorphine, methadone, and naltrexone) for persons suffering from opioid use disorders (such as addictions to heroin, fentanyl, or prescription pain medications).
Previously, Green has worked in community health and mental health settings where she provided consultation to behavioral health teams, integrated care teams, substance abuse intensive outpatient programs, and a women’s perinatal residential program. She also enjoyed supervising residents in her prior role as assistant consulting professor to the department of psychiatry at Duke University School of Medicine. During her training at the UNC department of psychiatry, she was honored to serve as chief resident, clinical instructor of psychiatry, and psychotherapy supervisor.
Green is passionate about the years we can add to our life and the life we can add to our years through lifestyle medicine! She focuses on maintaining her own healthy lifestyle through work-life balance, contemplative practices, and eating a plant-based diet. She finds joy through a continual growth mindset, shared quality time with her partner, and time spent outdoors backpacking and mountain biking.

Linda Thrasybule
Author
Linda Thrasybule is a senior editor at Everyday Health, where she oversees coverage of digestive health, heart health, and cancer. She has more than 20 years of experience covering health, nutrition, lifestyle and wellness trends, and science. Her work has appeared in Reuters Health, LiveScience.com, NPR’s Shots blog, Yahoo News, and TheWeek.com. She has also written clinical topics and research briefs for a number of government agencies and nonprofit health organizations. She earned a master’s degree in journalism from Columbia University in 2011.
In her spare time, Thrasybule enjoys hiking, taking Pilates classes, and going on the occasional yoga retreat to restore and reset.
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