Do not stop using fentanyl without talking to your doctor. If you suddenly stop using fentanyl, you may experience unpleasant withdrawal symptoms. Fentanyl should be used along with your other pain medication(s).

NIH-funded Intervention Did Not Impact Opioid-related Overdose Death Rates Over Evaluation Period
Discarded fentanyl patches may still contain significant amounts of the drug. This can result in misuse if someone removes the gel contents from discarded patches. Dependence can cause extremely unpleasant withdrawal symptoms if the person stops using it. Repeated fentanyl use can lead to dependence, which means that the person’s body gets used to the presence of the drug.
Drug overdose is a leading cause of preventable death in the U.S. ASAP Market is not the only dark web marketplace to – supposedly inadvertently – facilitate the fentanyl trade. The Investigator graph below shows that some vendors are active on a number of other dark markets, including Incognito, Vice City Market and World Market.
The process of testing methamphetamine is different than testing opioids and uses more water. Overdose deaths involving fentanyl have quadrupled in recent years. Because of the so-called “War on Drugs” and criminalization of people who use drugs, people often are unaware of the exact composition of the substances they’re using. This makes evidence-based harm reduction strategies such as fentanyl test strips, safety planning, and access to safe supply more vital than ever. Illicit fentanyl related products are described including the different forms it can appear in. The rise in use and overdoses are described as well as some of the reasons for these changes.
Health Care Providers
It works by changing the way the brain and nervous system respond to pain. As an opioid, fentanyl travels through your blood to attach to opioid receptors in brain cells. It remains one of the most commonly used opioids in controlled medical settings or advanced cancer pain. Fentanyl also can increase feelings of pleasure, often referred to as euphoria.

Can A Person Overdose On Fentanyl?
Ask your pharmacist for the instructions or visit the manufacturer’s website to get the instructions. If symptoms of an overdose occur, a friend or family member should give the first dose of naloxone, call 911 immediately, and stay with you and watch you closely until emergency medical help arrives. Your symptoms may return within a few minutes after you receive naloxone. If your symptoms return, the person should give you another dose of naloxone. Additional doses may be given every 2 to 3 minutes, if symptoms return before medical help arrives. Fentanyl is a potent synthetic opioid, which, similar to morphine, produces analgesia but to a greater extent.
Resources For Those Using Or Abusing Opioids
It said that postal inspectors had achieved sizeable increases in international parcel seizes and in domestic seizures related to opioids. For people who are addicted to fentanyl, there are safe and effective treatments available. Scientists are also working on opioid vaccines that would cause a person to develop antibodies to particular opioids and block their effects. This would offer a new approach to treating substance abuse, but the results of this research will likely not be known for years to come. Fentanyl is not only much stronger than other opioids, but it’s often added to illicit drugs without people knowing.
How To Identify A Potential Fentanyl Overdose And What To Do
For continuous delivery, a transdermal patch can slowly deliver fentanyl through the skin and into the bloodstream for up to 72 hours. Fentanyl affects people differently, depending on an individual’s size and overall health condition. Dr. Christy Sutherland, medical director at PHS Community Services Society, told the Globe it seems “very strange” that she is coordinating fentanyl sales as a family doctor.
The Relationship Between Suppliers And Vendors
- Some drug users told VICE World News that because fentanyl is the dominant street opioid, prescription heroin and other medical alternatives are not enough to keep their withdrawal and cravings at bay.
- Physical dependence results in withdrawal symptoms when individuals suddenly stop taking the drug.
- The fentanyl powder capsules being sold via PHS Community Services Society can be used to smoke, snort, or inject, the Globe reports.
- To get extremely potent opioids, users turn to the dark web—and sometimes, Google.
It is commonly mixed with drugs like heroin, cocaine, and methamphetamine and made into pills that are made to resemble other prescription opioids. Drugs mixed with fentanyl are extremely dangerous, and many people may be unaware that their drugs contain it. In 2022, the US Drug Enforcement Agency seized brightly colored fentanyl pills and powder (“rainbow fentanyl”), demonstrating that fentanyl can come in various colors and formulations. One should always weigh the risks vs the benefits of a drug.
How Does Fentanyl Affect The Brain?

Fentanyl is 100 times stronger than morphine and 50 times stronger than heroin (DEA, n.d.). It is so potent that just 2 milligrams can cause someone to experience a fatal overdose (DEA, 2024). An individual’s tolerance to fentanyl will impact the amount required to cause a fatal overdose. Figure 1 shows a lethal dose of fentanyl next to a penny.

The province already has prescription heroin and fentanyl replacement programs for people who are addicted to opioids. Some drug users told VICE World News that because fentanyl is the dominant street opioid, prescription heroin and other medical alternatives are not enough to keep their withdrawal and cravings at bay. Potent benzodiazepines, or tranquilizers, are now further contaminating the illicit fentanyl supply, causing more complicated overdoses.
“This study shines a light on the sophisticated methods of how the supply of opioids is coming into this country.” Education about the risks of fentanyl use, increased access to naloxone, and comprehensive addiction treatment programs are crucial in addressing this crisis. If you or someone you know is struggling with fentanyl use, it is essential to seek professional help. Recovery is possible with the proper support and treatment. People taking a daily prescribed dose will become dependent on the drug and will have withdrawal symptoms if they stop it. This is not an addiction but instead a physiological response.