
Fentanyl is an extremely powerful opioid that’s about 100 times more potent than morphine and is largely responsible for the most recent wave of the opioid overdose epidemic. Fentanyl is often mixed into street drugs, including heroin, cocaine, ecstasy (molly) and counterfeit pills like Xanax, Adderall, oxycodone and hydrocodone.
You can’t spot fentanyl by sight, smell or taste. But you can buy fentanyl test strips that can help you spot drugs cut with this deadly opioid before you use them. These strips are affordable and easily accessible and take just a few minutes to test your drugs.
It’s never safe to buy street drugs, but opioid use disorder (OUD) can cause compulsive opioid misuse. Getting treatment for OUD could help you stop buying street drugs, which could eliminate your risk of a fentanyl overdose.
Dealers make illicit fentanyl in powder form, but they mix it into many different forms, including the following:[1]
Fentanyl doesn’t stand out when it’s mixed with other drugs. You can’t spot it with the naked eye, which increases the risk of a deadly overdose.
Unlike the white powder fentanyl that is frequently added to other drugs like heroin, rainbow fentanyl is pressed into colorful pills. These brightly colored pills are very dangerous considering how appealing they are to teens and young children.
Rainbow fentanyl comes in bright pills, powders, and blocks that look like sidewalk chalk, and can lead to life-threatening overdoses.
Fentanyl is odorless, so you can’t smell it.[3] The other drugs it’s mixed with are also odorless, so it’s impossible to tell if you’ve purchased a contaminated dose. And even if someone is smoking a drug that has fentanyl in it, fentanyl smoke has no odor. The only way to detect fentanyl in your drugs is with a fentanyl testing strip.
Fentanyl has no taste, and it’s also mixed with other tasteless substances.[3] You can’t tell if you’re dealing with a contaminated dose of drugs by licking the substance. Plus, fentanyl is so potent that even if you lick a small amount of it, you could still overdose. In fact, a fatal overdose of fentanyl is just 2mg of powder, enough to fit on the tip of a pencil.[1]

Of all opioids, fentanyl is one of the strongest. Since it’s so powerful and found in all kinds of drugs, it’s responsible for many overdose deaths.
Deaths involving synthetic opioids like fentanyl were responsible for more than 70,000 overdose deaths in 2021 alone.[2]
More than half of all opioid overdose deaths now involve synthetic opioids like fentanyl, and researchers say the substance is rapidly becoming a routine part of street drugs.[4]
Signs of a fentanyl overdose may include:[1]
If you suspect you or someone you know has overdosed, call 911 immediately.
Many people who use street drugs are aware that fentanyl could contaminate the next substance they buy. In one study of 149 people, 121 knew about fentanyl or had been exposed to it within the last year.[5]
Since you can’t see, smell or taste the drug, it’s very hard to stay safe. Test strips can help.
Fentanyl test strips are small, inexpensive and convenient. They can detect fentanyl in all sorts of drugs, including the following:[6]
Place a tiny bit of your drug in a test tube, add water and then the strip. You’ll get the results within minutes. If it’s contaminated, do not take the drug.
But fentanyl is not always evenly distributed throughout a batch of drugs. There’s always a chance that the small portion you test doesn’t have fentanyl, but it’s present elsewhere in the batch.
While test strips can help you ensure you don’t take a substance contaminated with fentanyl, overdoses can still happen. Entering a Medication for Addiction Treatment (MAT) program can help you quit using substances and begin a life of recovery.
In an MAT program, doctors use medications like Suboxone to correct chemical imbalances deep inside your brain caused by opioid misuse. MAT helps you think clearly, avoid drug cravings and get sober without feeling crippling withdrawal symptoms. Counseling could help you build a new life too.
If you’re struggling with OUD, talk to your doctor to see if MAT is right for you.

Peter Manza, PhD received his BA in Psychology and Biology from the University of Rochester and his PhD in Integrative Neuroscience at Stony Brook University. He is currently working as a research scientist in Washington, DC. His research focuses on the role of the brain dopamine system in substance use disorders and in aging. He also studies brain function in obesity and eating disorders.
Breaking Down a Peer-Reviewed Publication Describing Bicycle Health’s Opioid Use Disorder Treatment Program

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
Block quote
Ordered list
Unordered list
Bold text
Emphasis
Superscript
Subscript
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
Block quote
Ordered list
Unordered list
Bold text
Emphasis
Superscript
Subscript

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
Block quote
Ordered list
Unordered list
Bold text
Emphasis
Superscript
Subscript
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
Block quote
Ordered list
Unordered list
Bold text
Emphasis
Superscript
Subscript

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
Block quote
Ordered list
Unordered list
Bold text
Emphasis
Superscript
Subscript
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
Block quote
Ordered list
Unordered list
Bold text
Emphasis
Superscript
Subscript

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
Block quote
Ordered list
Unordered list
Bold text
Emphasis
Superscript
Subscript
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
Block quote
Ordered list
Unordered list
Bold text
Emphasis
Superscript
Subscript

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
Block quote
Ordered list
Unordered list
Bold text
Emphasis
Superscript
Subscript