A Q and A on Fentanyl Risks
Fentanyl Risks: straight answers to the questions people actually ask, with the figures behind them.
On this page
The dangers of illegally made fentanyl, a powerful synthetic opioid now found in many street drugs and fake pills.
Key takeaways
- Strength: about 50 times stronger than heroin and 100 times stronger than morphine
- Where it is found: mixed into heroin, cocaine, methamphetamine and counterfeit pills that look like real prescription medicines
- Most useful single change: Only take pills prescribed for you and dispensed by a licensed pharmacy.
- Commonest mistake: Taking pills from friends or social media sellers, even if they look real.
- See a doctor if any of the signs under "When to speak to a doctor" below apply to you.
What is Fentanyl Risks?
The dangers of illegally made fentanyl, a powerful synthetic opioid now found in many street drugs and fake pills.
Why does it matter?
Fentanyl is the main driver of overdose deaths in the US, and many people who take it do not know their drugs contain it.
Where it is found for Fentanyl Risks?
Mixed into heroin, cocaine, methamphetamine and counterfeit pills that look like real prescription medicines.
Test strips for Fentanyl Risks?
Fentanyl test strips can detect fentanyl in drugs.
What is the single most useful thing to do?
Only take pills prescribed for you and dispensed by a licensed pharmacy.
What is the most common mistake?
Taking pills from friends or social media sellers, even if they look real.
When should I see a doctor?
Call 911 right away and give naloxone if someone has slow or stopped breathing, pinpoint pupils or will not wake up. Stay with them until help arrives.
More questions, answered
Can I overdose by touching fentanyl?
Brief skin contact with fentanyl is very unlikely to cause an overdose. Fentanyl is not easily absorbed through the skin. If you touch a substance you think contains fentanyl, wash your hands with soap and water, not alcohol-based sanitizer. Do not delay helping someone who has overdosed.
Is prescription fentanyl dangerous?
Prescription fentanyl, used as directed under medical supervision, is a strong pain medicine with known risks, like other opioids. The overdose crisis is driven mainly by illegally made fentanyl. If you are prescribed fentanyl, follow instructions carefully, store it safely, and dispose of used patches as directed.
Do fentanyl test strips mean my drugs are safe?
No. A positive result means fentanyl was found in the sample you tested. A negative result does not guarantee the drugs are safe, because fentanyl can be unevenly spread or another dangerous substance may be present. Still use less, never use alone, and carry naloxone.
Why do fake pills look so real?
Illegal producers use pill presses to make counterfeit pills that copy the color, shape and markings of real medicines. Even experts cannot reliably tell them apart by sight. The only way to know a medicine is genuine is to get it with a prescription from a licensed pharmacy.
What is rainbow fentanyl?
Fentanyl has been found in brightly colored pills and powders. Color does not change how dangerous it is. Any pill or powder that does not come from a pharmacy may contain fentanyl, whatever it looks like. Talk with children and teens about not taking pills from anyone other than a trusted adult or doctor.
Can treatment help if I use fentanyl every day?
Yes. Medications for opioid use disorder and counseling work for people who use fentanyl. Starting may take extra planning, but clinicians are increasingly experienced with it. Call your doctor, the SAMHSA National Helpline or a treatment program to discuss your options.
Related topics
- Buying Medicines Online: Sorting the Evidence From the Noise (Medicines Safety)
- Opioids for Long-Term Pain: What Published Guidance Supports (Chronic Pain)
- Traveling with Medicines: What Published Guidance Supports (Travel Health)
- Acetaminophen Safety: What the Evidence Actually Says (Liver Health)
Where to go next
- What People Get Wrong About Fentanyl Risks
- Fentanyl Risks for Beginners: Where to Start
- Fentanyl Risks — the reference entry
- Substance Use: The Complete Guide
- The Evidence on Alcohol Use Disorder, Without the Hype
- The Evidence on Cannabis Use, Without the Hype
When to speak to a doctor
Call 911 right away and give naloxone if someone has slow or stopped breathing, pinpoint pupils or will not wake up. Stay with them until help arrives.
Where this comes from
- CDC — Fentanyl Facts
- National Institute on Drug Abuse — Fentanyl DrugFacts
How this page was put together
Every figure, recommendation and warning above is taken from the guidance named in Where this comes from. Nothing on this page is inferred, summarized or generalized beyond what those bodies publish: where they give a number, it is their number, and where they are silent, so are we. Pages are rebuilt whenever the underlying record changes. Sign-off by a named clinician, where it has happened, is shown at the top of the page along with the date.
Medical disclaimer
This article is general information, not medical advice. It cannot account for your own history, medication or circumstances. Always speak to your doctor, pharmacist or another qualified health professional before making changes that affect your treatment, and never delay seeking medical advice because of something you have read here. In an emergency, call 911.
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