If someone stopped breathing after opioid use, the direction was clear: administer Narcan, wait for them to gasp back to consciousness, and get them to a hospital. But what if it doesn’t work?
Xylazine (tranq) is a veterinary sedative increasingly mixed into the fentanyl supply. It’s not an opioid, which means Narcan can’t reverse its effects. When someone overdoses on a fentanyl-xylazine combination, naloxone may reverse the opioid component. But the profound sedation from xylazine remains. Below, we take a closer look at exactly what this means.
Quick Summary: Xylazine (tranq) is not an opioid; it’s a veterinary sedative. This means Narcan doesn’t work regarding tranq’s sedative effects. And this can lead to cessation of breathing and death.
What Is Tranq (Xylazine)?
Xylazine was developed in Germany in 1962 as a potential blood pressure medication for humans. But it ultimately failed; the central nervous system depression was too severe, and the blood pressure drops were dangerous. In the end, it was shelved for human medicine and redirected to veterinary use, where it’s been a standard sedative for horses, cattle, and large animals ever since.
But this drug is now showing up in the illicit fentanyl supply across the states.
On the street, the xylazine drug goes by “tranq.” When it’s mixed with fentanyl, the combination is known as tranq dope. Yet, it’s undetectable by sight, smell, or touch, and standard drug tests typically don’t screen for it.
In fact, DEA laboratory data from 2022 found xylazine in roughly 23% of fentanyl powder and 7% of fentanyl pills seized nationwide. In other words, it can be found in many different synthetic drug mixtures. When buying illegal drugs, there’s often no way to know what you’re actually getting.
How Xylazine Is Used in Street Drugs
A kilogram of xylazine powder can be purchased from overseas suppliers for as little as six to 20 dollars. Compared to fentanyl, which is already cheap to produce but carries heavier legal consequences and supply chain risks, xylazine stretches the product, adds weight, and extends the duration of the high. In turn, this can increase profit margins for dealers.
From a user’s perspective, tranq dope produces a longer-lasting sedation than fentanyl alone. For those facing withdrawal without it, this can inevitably be appealing.
In fact, the fentanyl supply has become so contaminated with xylazine that avoiding it has become nearly impossible in some drug markets, particularly in the Northeast, where Philadelphia became the early epicenter. The contamination has since spread south and west.
Xylazine has also appeared alongside cocaine, methamphetamine, and even counterfeit prescription pills, meaning people who don’t use opioids at all can still be exposed.
How Does Xylazine Affect the Body?
Xylazine is a central nervous system depressant. This means it sedates heavily, slows heart rate, drops blood pressure, and suppresses breathing. When both fentanyl and xylazine are present, those depressant effects stack on top of each other.
But xylazine does something opioids don’t; it destroys tissue.
Repeated xylazine use (particularly injection) is associated with severe skin wounds, such as open ulcers, deep necrotic lesions, and abscesses that can appear at or away from injection sites. These wounds also often resist standard wound care. And left untreated, they can progress to bone infection and amputation. So, why does this happen? While more research is needed, it’s believed xylazine constricts blood vessels in ways that starve surrounding tissue of oxygen, causing it to die.
Why Doesn’t Narcan Always Work on Tranq
Naloxone (brand name Narcan) works by essentially knocking opioid molecules off the brain’s opioid receptors. It’s effective for heroin, fentanyl, oxycodone, and virtually any other opioid. But xylazine doesn’t attach to opioid receptors. It acts on alpha-2 adrenergic receptors, meaning naloxone can’t reach it.
This means that someone may use tranq dope containing both fentanyl and xylazine. They then may collapse. A bystander, in turn, administers Narcan. The naloxone binds to opioid receptors and begins reversing the fentanyl. And even if an opioid overdose is not responding to Narcan, multiple doses won’t do harm but may actually help. It’s usually recommended to give another dose two to three minutes later if the first dose doesn’t work.
But the xylazine remains active no matter how much Narcan is administered, continuing to suppress breathing, heart rate, and consciousness. The person doesn’t wake up. The bystander gives a second dose, a third, a fourth, and still no response.
The problem? Narcan only addresses half of the full picture. And this is the importance of getting immediate medical care, as soon as possible. Don’t wait to see if the person will wake up on their own; it’s simply not worth the risk.
Can Narcan Still Help in a Tranq Overdose?
Technically, yes. Since xylazine is almost always mixed with opioids, naloxone can still help. Even if it can’t reverse the xylazine, it can reverse the fentanyl, and that alone can be the difference between life and death. Removing the opioid burden gives the body a fighting chance to sustain breathing while xylazine’s effects gradually wear off.
The guidelines generally state to administer naloxone in any suspected overdose, regardless of whether xylazine might be involved. Then provide rescue breathing, and call 911 immediately.
In fact, rescue breathing has become especially important in the xylazine era because the drug suppresses respiration through a pathway that naloxone can’t address. Thus, manually keeping oxygen moving into the lungs may be the single most important intervention a bystander can provide.
Signs of a Tranq-Related Overdose
Some signs of a xylazine overdose include:
- Extreme sedation/unconsciousness
- Slow or stopped breathing
- Low heart rate
- Blue lips (if opioids are involved)
- Non-responsiveness (even after Narcan)
If any of these signs are present, call emergency services immediately. Administer naloxone. Monitor their breathing, and administer rescue breathing if needed.
Why Tranq Is Especially Dangerous
Xylazine compounds the danger of fentanyl without being detectable by users or reversible by the most widely available overdose tool. There is currently no FDA-approved reversal agent for xylazine in humans. And because it’s not classified as a controlled substance at the federal level, enforcement and tracking have lagged behind its spread.
Additionally, xylazine produces physical dependence with its own distinct withdrawal syndrome—one that many treatment providers aren’t yet trained to manage. Symptoms can include severe anxiety, agitation, and dangerous spikes in heart rate and blood pressure. When patients enter treatment expecting opioid withdrawal protocols and encounter something unfamiliar and unmanaged, they often leave early. This creates a cycle in which the people most in need of care are the least likely to remain in it.
Treatment for Xylazine and Opioid Addiction
There is no pill that reverses xylazine the way naloxone reverses opioids. Treatment for tranq-related addiction is therefore primarily supportive, and it requires medical professionals who know about xylazine and its effects. So, what does treatment involve exactly?
Medical detox under supervised care is the typical starting point. During this time, monitoring heart rate, blood pressure, and mental status is essential. If there’s an opioid component, it’s typically managed through medication-assisted treatment. Xylazine withdrawal is addressed with supportive medications tailored to the patient’s symptoms.
Wound care is a unique aspect of treatment for xylazine. Patients arriving with tranq-related skin lesions need medical attention alongside addiction treatment. Programs that integrate both are better equipped to keep people in care long enough for recovery to take hold.
Following detox, inpatient and outpatient rehabilitation programs, such as those offered at United Recovery Project, provide the behavioral therapy, structure, and support systems that sustain long-term recovery. The specific path depends on the individual, including their history, their substance use pattern, and more. Either way, professional guidance through the withdrawal process is one of the most important first steps when getting proper care.
When to Seek Help
At the end of the day, xylazine has rewritten the rules of the overdose crisis. It made the most widely trusted rescue tool only partially effective. But help is never far away.
If you or someone you love is struggling with substance use, that first step can feel like the hardest one. However, our team at United Recovery Project can help make it that much easier. Call us at 888-960-5121; we’re here to guide you toward recovery and a happier and healthier life!
