Fentanyl has completely changed the landscape of both prescriptions and street drugs in the United States. To protect yourself and your loved ones, it’s important to understand exactly what the substance is and how it works. The following article provides a brief history of fentanyl, how it entered our nation’s drug supply, and signs and symptoms of abuse.
- Fentanyl is a synthetic opioid that is up to 50 times stronger than heroin and 100 times stronger than morphine — even small amounts can be fatal.
- A lethal dose is just 2 milligrams, about the size of a few grains of salt.
- Illicit fentanyl drives the majority of U.S. overdose deaths and is increasingly mixed into other street drugs without users’ knowledge.
- Common misconceptions — that you can overdose by touching it, or that naloxone doesn’t work on it — are not supported by evidence.
- If you suspect a fentanyl overdose: call 911 immediately, administer naloxone if available, and begin CPR.
What Is Fentanyl?
Fentanyl is a Schedule II synthetic opioid that’s created in a laboratory. It works by acting on the brain’s opioid receptors to block pain signals and release dopamine. It’s extremely effective for patients experiencing severe and unmanageable pain, like advanced cancer patients and those recovering from invasive surgeries, but it has a high potential for abuse and addiction. Fentanyl comes in transdermal patches, lozenges, nasal sprays, and injectable liquids administered by an anesthesiologist in hospitals.
A Brief History of Fentanyl
Fentanyl was first synthesized by the Belgian chemist Dr. Paul Janssen in 1959. His goal was to produce an effective and fast-acting painkiller for surgical procedures. By the 60s, the drug was introduced to the medical industry under the name Sublimaze as an intravenous anesthetic. Because of its rapid onset and short half-life, Sublimaze kept patients pain-free during surgery.
In the mid-1990s, physicians began prescribing the fentanyl patch to provide 72-hour relief for chronic pain management. Initially, fentanyl use was safely contained in hospitals and medical facilities.
How Fentanyl Entered the Illicit Drug Supply
Fentanyl has a specific chemical structure. Illegal drug manufacturers often substitute one core chemical for another, making it cheaper to produce but more potent. These new compounds, called analogs, usually come from China, Mexico, and India before being exported to the United States. Fentanyl is also used as a cutting agent. Because it’s so powerful, dealers often add a tiny amount of fentanyl to other drugs like heroin and cocaine to increase profit margins.
Today, millions of counterfeit pills circulate on the street. They have the same appearance as prescription medications but contain cheap fillers and deadly doses of fentanyl.
Why Fentanyl Is So Dangerous
Fentanyl is extremely potent, which is what makes it so dangerous. The drug is up to 50 times stronger than heroin and 100 times stronger than morphine. To put this in perspective, a lethal dose of fentanyl is just 2 milligrams — about the size of a few grains of salt.
Unregulated underground labs mix fentanyl where there’s no quality control. Some pills might not have any fentanyl, while others contain three times the lethal dose, which can cause the central nervous system to shut down.
The Fentanyl Crisis by the Numbers
The statistics surrounding fentanyl are staggering. In 2024, fentanyl use accounted for 60% of overdose deaths in the United States. This is partially because approximately 42% of illegal drugs seized by the DEA tested positive for fentanyl. Amounts varied between .02 to 5.1 mg per pill, which is more than twice the lethal dose. One kilogram of fentanyl — about 2.2 pounds — is enough to kill 500,000 people.







