Carfentanil Exposure Risk: What Ohioans Should Know

Table of Contents

Key Takeaways

  • Ohio BCI identified 199 carfentanil-containing items across 46 counties in 2025, up from 5 samples in 2022, with spread into central, northwestern, and southern counties 8.
  • Carfentanil is roughly 10,000 times stronger than morphine and 100 times stronger than fentanyl, so uneven mixing in pills and powders makes visual dose judgment unreliable 1.
  • Standard fentanyl test strips do not reliably detect carfentanil, and naloxone often requires repeated doses every 2–3 minutes because re-narcotization is a real risk 2, 6, 12.
  • Families should stock multiple naloxone doses, learn overdose signs, and consider medically supervised detox, which stabilizes opioid receptors with buprenorphine or methadone under monitoring 11.

The supply changed. Being careful isn’t enough anymore.

If you are in Ohio and using street drugs, you may have noticed a change. The pill that used to feel familiar may not feel the same. A friend who has been using for years may have experienced an overdose from something that looked identical to what they always obtain. Ohio’s street drug supply is not the same as it was two years ago.

The Ohio Attorney General’s Bureau of Criminal Investigation, operating out of Richfield, reported 199 items containing carfentanil across 46 Ohio counties in 2025 alone. This number is a significant increase from just 5 samples in 2022 8. This is not a rumor; it is based on lab work. Carfentanil is appearing in central Ohio, northwestern Ohio, and, more recently, in southern counties along the river 8.

While harm-reduction practices like starting with a small amount, testing a corner, or using with another person are still important, the presence of carfentanil changes the margin of safety. With carfentanil, the amount that provides the desired effect and the amount that causes breathing to stop can be indistinguishable. This is due to changes in the drug supply, and it is important to understand the risks involved.

What carfentanil actually is, and why the margin for error disappeared

Carfentanil was not developed for human use. It was created as a tranquilizer for large animals, primarily elephants, and is so potent that veterinarians handling it wear extensive protective gear. This is the substance now appearing in Ohio’s street drug supply, mixed into powders and pressed into pills that resemble other substances.

Carfentanil is approximately 10,000 times more potent than morphine and about 100 times more potent than fentanyl 1. The amount equivalent to a grain of salt is often used as a comparison, and this is not an exaggeration. When a substance is this strong, the difference between a therapeutic dose and a fatal dose is not measurable in visible quantities, making it impossible to accurately gauge by eye.

This extreme potency is why traditional harm-reduction methods, such as starting with a low dose or testing a small amount, no longer offer the same level of safety. While the margin of error was never large, it existed. With carfentanil, the mixing is rarely uniform. One pill from a batch might contain very little, while another, pressed moments later, could contain a lethal dose. The inconsistency is in the drug itself, not in the individual’s actions.

This situation is a matter of chemistry and a shift in the drug supply, not a moral failing. Understanding that you may be handling a drug designed to sedate animals weighing half a ton is crucial for making informed decisions.

Chart showing Carfentanil Potency vs. Fentanyl and Morphine
Carfentanil is 10,000 times more potent than morphine and 100 times more potent than fentanyl. This can be visualized as a bar chart comparing the relative potencies.

Ohio-specific: what BCI is finding in 2025

The five-year trend line, from a 2017 peak to a 2025 resurgence

In 2017, the Ohio Attorney General’s Bureau of Criminal Investigation identified 1,119 samples containing carfentanil in its labs 8. Following this peak, the numbers decreased, with BCI counting only 5 carfentanil samples in 2022 and 9 in 2023 8. This decline offered a brief sense of relief for many Ohioans affected by the drug crisis.

However, this trend has reversed. In 2024, BCI’s carfentanil sample count rose to 40 8. By 2025, this number surged to 199 items containing carfentanil, collected from samples across 46 Ohio counties 8. This increase indicates a significant change in the drug supply that individuals cannot detect without laboratory analysis.

The importance of this trend lies in its implications for current drug use. The perception that one is using a consistent supply from familiar sources may no longer be accurate. The substances available today likely originate from different distribution networks than those operating even 18 months ago. Those involved in cutting these substances are not chemists, and their imprecise methods are reflected in these lab results.

This shift in the supply is an external factor, and understanding it provides important information for individuals using street drugs.

Chart showing Carfentanil Seizures in Ohio by BCI (2025)
Data from the Ohio Attorney General’s Bureau of Criminal Investigation (BCI) shows 199 items containing carfentanil were seized across 46 Ohio counties in 2025, indicating widespread re-emergence.

Where it’s showing up: central, northwestern, and now southern counties

The geographical distribution of carfentanil has changed. When it first appeared in Ohio in 2016, it was most prevalent in Northeast Ohio, with Summit and Cuyahoga counties experiencing significant impact 2, 6.

The data for 2025 shows a different pattern. BCI’s latest information indicates carfentanil is concentrated in central and northwestern Ohio counties, with a recent increase in the southern part of the state 8. Areas such as Columbus, Toledo, and counties along the Ohio River, which were not previously strongly associated with this drug, are now affected.

This shift means that no county can be assumed safe based on past trends. For example, individuals in Portsmouth, Marion, or Lima who believe they are purchasing a familiar substance may be encountering a supply from a new source. The 2024 Attorney General update reported 36 carfentanil-positive items across 14 counties, primarily in northeastern Ohio 7. A year later, this has expanded to 46 counties 8, indicating a rapid and ongoing spread.

What exposure looks like, and why you can’t ‘see’ carfentanil in a pill or powder

Counterfeit pills, unknown powders, and poly-drug mixing

Carfentanil is undetectable by sight, smell, or taste. It is being found mixed into substances believed to be heroin, pressed into pills that mimic prescription medications like M30s or Percocet, and combined with powders sold as cocaine or methamphetamine in Ohio 3.

A significant concern is its presence in non-opioids. The CDC’s Health Alert on carfentanil specifically highlighted its increasing appearance mixed with substances like cocaine 3. This means that individuals who believe they are avoiding opioids by using other substances are still at risk due to cross-contamination in the illicit drug supply.

Counterfeit pills pose a particular danger. A pressed pill in Toledo or Cincinnati can appear identical to a pharmaceutical tablet in color, stamp, and weight. However, the active ingredient inside could be fentanyl, carfentanil, or a combination, and the dosage is often unevenly distributed. Relying on visual cues for safety is no longer effective.

Why fentanyl test strips can miss it

Fentanyl test strips are a valuable harm-reduction tool and have saved lives across Ohio. However, it is important to understand their limitations.

This information should not discourage the use of test strips. Instead, it emphasizes that a negative result should not be interpreted as a complete assurance of safety. The current drug supply in Ohio can contain carfentanil in amounts that test strips may not detect, and that can be lethal.

Signs of overdose worth memorizing tonight

If you are around someone who uses drugs, it is critical to recognize the signs of an overdose. A carfentanil overdose presents similarly to an opioid overdose, but its progression is often more rapid and severe 10.

Key signs to watch for include:

  • significantly slowed or stopped breathing;
  • blue or gray discoloration of the lips or fingertips;
  • cold and clammy skin;
  • pinpoint pupils;
  • a slack facial expression; and
  • snoring or gurgling sounds, which indicate an obstructed airway.

The person may also be unresponsive to attempts to rouse them, such as shaking their shoulder or rubbing a knuckle hard on their sternum.

If any of these signs are observed, immediately call 911. Ohio’s Good Samaritan protections are in place for these situations. Administer naloxone, begin rescue breaths, and remain with the individual. Do not leave them or wait to see if they recover on their own. With carfentanil, the window for intervention is much shorter than with other opioids.

Naloxone still works, but the honest version is different

It is crucial to carry naloxone (Narcan). Naloxone is effective in reversing carfentanil overdoses; research confirms that individuals exposed to carfentanil exhibit opioid overdose symptoms and respond to opioid antagonists like naloxone 10. While its effectiveness remains, the amount and frequency of administration may differ.

Naloxone’s effectiveness can be reduced for opioids that detach slowly from mu-opioid receptors, and carfentanil is one such opioid 12. This means a single dose of naloxone may not be sufficient. An individual might regain consciousness briefly, only for their breathing to slow again as the naloxone wears off and carfentanil continues to affect the receptors. This phenomenon, known as re-narcotization, is a significant risk with carfentanil 12. Ohio-specific guidance from Lorain County advises redosing naloxone every 2 to 3 minutes until the person is breathing independently for at least 15 minutes or until emergency medical services (EMS) arrive 6. Multiple or higher-than-standard doses are often necessary 11.

The current situation differs from previous overdose waves. DEA labs tested over 100 kg of carfentanil-containing material in 2024, surpassing the total from the previous three years combined. CDC data show carfentanil-involved deaths increased approximately sevenfold, from 29 in the first half of 2023 to 238 in the first half of 2024, with detections in 37 states 5. This context underscores why a single dose of Narcan and a hopeful wait is no longer an adequate response.

In an overdose situation:

  1. call 911 immediately.
  2. Administer naloxone.
  3. Begin rescue breaths.
  4. Ensure additional doses are readily available.
  5. Stay with the individual until EMS arrives, even if they appear to recover.

These actions are not an overreaction; they are essential for maintaining life until professional medical help takes over.

If you’re a veteran reading this at 2 a.m.

Many veterans experience sleepless nights, often due to chronic pain, PTSD, moral injury, or intrusive thoughts. In these moments, the option of using a substance may seem like a solution.

However, the drug supply has become unpredictable. BCI is finding carfentanil in 46 Ohio counties this year 8, often in pressed pills that resemble prescription medications many veterans initially received. The illicit market has evolved in a dangerous direction.

This is not about willpower. Self-medicating for chronic pain, PTSD, or other challenges is a common coping mechanism when support systems are insufficient. The critical issue now is that the substances being used are often mixed by individuals who are guessing, and may contain compounds like carfentanil, which was engineered for elephants 1.

Reaching out for help can be challenging, but it is a courageous step. In Ohio, resources are available, including veteran-specific programs at Arrow Passage in Massillon and Cleveland. These programs understand the unique experiences of veterans and do not require individuals to justify their service to receive care. Making that call, whenever you are ready, is a significant step toward safety and recovery.

Why medically supervised detox is the one move that removes the roulette wheel

What medically supervised detox actually involves

Medically supervised detox provides a safe environment where individuals can withdraw from substances under the care of medical professionals. This involves continuous monitoring of vital signs by nurses and physicians. If withdrawal symptoms become severe—such as sweating, tremors, vomiting, or intense restlessness—medications are available to alleviate discomfort, allowing for rest, nutrition, and engagement in conversation. Buprenorphine or methadone may be initiated to stabilize opioid receptors affected by carfentanil 11. Non-opioid medications address symptoms like nausea, anxiety, and blood pressure fluctuations.

The importance of this approach is heightened by the presence of carfentanil. Individuals are not just detoxing from what they believed they were using, but from a compound that binds strongly and persists in the body. The risk of re-narcotization, which contributes to the severity of street overdoses, continues even after the decision to stop using 12. Being under medical supervision means having professionals who can administer additional naloxone, start an IV, or call for emergency intervention, eliminating the uncertainty and danger of withdrawing alone. This provides a controlled and safe environment for recovery.

Options in Massillon and Cleveland, including veteran and dual diagnosis tracks

Arrow Passage Recovery offers medically supervised detox services in Massillon and Cleveland, designed to meet individuals at their current point of need. Following detox, various levels of care are available: residential treatment for those requiring a structured, immersive environment; partial hospitalization for individuals stable enough to return home at night; and intensive outpatient programs for those balancing treatment with work or family responsibilities. The intake team assists in determining the most appropriate level of care.

Two specialized tracks are offered: a veteran track, staffed by professionals who understand the complexities of PTSD, moral injury, chronic pain, and sleep disturbances related to military service; and a dual diagnosis track, which addresses co-occurring mental health conditions such as depression, anxiety, and trauma alongside substance use, recognizing that integrated treatment is often most effective.

For families and friends: what you can do this week

If a loved one in Ohio is using drugs, the immediate goal is to ensure their safety. This week, focus on actionable steps to reduce risk.

Obtain naloxone and keep it readily accessible in your home, car, and bag. Project DAWN sites across Ohio provide naloxone kits free of charge, without questions. It is advisable to have more than one dose per kit, as carfentanil often requires multiple administrations 11. Learn the signs of an overdose together: slow or stopped breathing, blue lips, gurgling sounds, and unresponsiveness. Practice stating that you will call 911 first, emphasizing that Ohio’s Good Samaritan law protects both individuals involved.

Instead of issuing ultimatums, ask an open-ended question:
“What would make it easier to be safer tonight?”
Listen to their response without judgment. Keep a confidential intake number saved in your phone. Initiating the call for help is often the most difficult step, a reality understood by both those seeking help and their loved ones.

A confidential call, and what happens after you make it

Making the initial call for help is often the most challenging part. Individuals who have made this call, whether a parent in Massillon or a veteran in Cleveland, attest to its difficulty. When you do call, the process is typically straightforward and supportive. A person will answer and inquire about your current situation, focusing on immediate needs rather than judgment. You do not need to provide your full name to begin. They will discuss available beds, insurance coverage, logistical considerations, and potential admission timelines. If medically supervised detox is the appropriate first step, they will explain it clearly. If another approach is more suitable, they will advise accordingly.

You do not need to be fully prepared to enter treatment to make this call. The willingness to ask a question, driven by a desire for change, is sufficient. That act alone is a significant and positive step.

Talk with Someone Who Truly Understands Ohio Risks

Get immediate support for safe detox and trauma recovery, tailored for Ohio veterans facing carfentanil exposure.

Infographic showing Share of 2023 U.S. Overdose Deaths Involving Illegally Made Fentanyls
Share of 2023 U.S. Overdose Deaths Involving Illegally Made Fentanyls

Frequently Asked Questions

Is carfentanil really back in Ohio’s drug supply in 2025?

Yes, it has returned significantly. The Ohio Attorney General’s Bureau of Criminal Investigation identified 199 items containing carfentanil across 46 Ohio counties in 2025. This is a substantial increase from 5 samples in 2022 and 9 in 2023 8. It is now being found in central and northwestern Ohio, with a recent rise in southern counties along the river 8.

Can a fentanyl test strip tell me if carfentanil is in my supply?

Not reliably. Standard fentanyl immunoassays, the technology used in most test strips, do not consistently detect carfentanil 2. A negative strip indicates the probable absence of significant amounts of regular fentanyl, but it does not confirm the absence of carfentanil. Continue using test strips, but interpret a negative result as one piece of information, not a guarantee of safety.

Does naloxone (Narcan) still work on a carfentanil overdose?

Yes, and it is important to continue carrying it. Naloxone reverses opioid overdoses, including those involving carfentanil 10. However, carfentanil detaches slowly from opioid receptors, meaning one dose is often insufficient, and re-narcotization is a real risk 12. Ohio guidance recommends redosing every 2–3 minutes until the person is breathing independently for 15 minutes or until EMS arrives 6.

What are the signs of a carfentanil overdose I should watch for?

Look for significantly slowed or stopped breathing, blue or gray lips or fingertips, cold and clammy skin, pinpoint pupils, a slack face, and snoring or gurgling sounds, which indicate an obstructed airway. The person may also be unresponsive to attempts to rouse them 10. Call 911 immediately, administer naloxone, begin rescue breaths, and stay with them until help arrives.

Why is medically supervised detox safer than trying to quit on my own?

Because carfentanil binds strongly and persists in the body, the risk of re-narcotization, which makes street overdoses so dangerous, does not disappear when you decide to stop 12. In a supervised setting, nurses monitor your vital signs, medications like buprenorphine or methadone can stabilize opioid receptors 11, and medical staff can administer additional naloxone or start an IV if needed. This eliminates the risks of withdrawing alone.

I’m a veteran and I don’t want a lecture. What are my options in Ohio?

Arrow Passage Recovery offers veteran-specific programs at its Massillon and Cleveland locations. These programs are staffed by individuals who understand PTSD, chronic pain, and moral injury, eliminating the need to explain your service. Dual diagnosis care addresses mental health alongside substance use. Options include detox, residential treatment, partial hospitalization (PHP), and intensive outpatient programs (IOP). The intake call is confidential and does not involve a sales pitch.

References

  1. Carfentanil: A Dangerous New Factor in the US Opioid Crisis. https://www.dea.gov/sites/default/files/2018-07/hq092216_attach.pdf
  2. Emerging Synthetic Fentanyl Analogs. https://pmc.ncbi.nlm.nih.gov/articles/PMC6474477/
  3. Rising Numbers of Deaths Involving Fentanyl and Fentanyl Analogs, Including Carfentanil, and Increased Usage and Mixing with Non-opioids. https://stacks.cdc.gov/view/cdc/56848
  4. Detection of Illegally Manufactured Fentanyls and Carfentanil in the United States Drug Supply and Overdose Deaths — January 2021–June 2024. https://www.cdc.gov/mmwr/volumes/73/wr/mm7348a2.htm
  5. Carfentanil: A Synthetic Opioid Unlike Any Other. https://www.dea.gov/stories/2025/2025-05/2025-05-14/carfentanil-synthetic-opioid-unlike-any-other
  6. LabINFO NEWSLETTER (Lorain County, Ohio) – Carfentanil Warning. https://loraincountyohio.gov/Archive/ViewFile/Item/116
  7. AG Yost Highlights Dangerous Trends on National Fentanyl Awareness Day. https://www.ohioattorneygeneral.gov/Media/News-Releases/May-2024/AG-Yost-Highlights-Dangerous-Trends-on-National-Fe
  8. BCI Reports Continued Uptick in Carfentanil Seizures. https://www.ohioattorneygeneral.gov/Media/News-Releases/October-2025/BCI-Reports-Continued-Uptick-in-Carfentanil-Seizur
  9. Carfentanil Outbreak — Florida, 2016–2017. https://pmc.ncbi.nlm.nih.gov/articles/PMC7004395/
  10. Carfentanil: a narrative review of its pharmacology and public health relevance. https://pubmed.ncbi.nlm.nih.gov/30666589/
  11. Carfentanil – from an animal anesthetic to a deadly illicit drug. https://pubmed.ncbi.nlm.nih.gov/33581655/
  12. Clinical Pharmacokinetics and Pharmacodynamics of Naloxone. https://pmc.ncbi.nlm.nih.gov/articles/PMC11052794/
  13. Carfentanil toxicity in the African green monkey: Therapeutic efficacy of naloxone. https://pubmed.ncbi.nlm.nih.gov/32070766/

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