Fentanyl Risks: Common Questions
The dangers of illegally made fentanyl, a powerful synthetic opioid now found in many street drugs and fake pills.
Last revised
Fentanyl Risks: the questions people actually ask, answered from published guidance.
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 get help" 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.
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 get help
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.
