Xylazine (tranq) addiction is on the rise due to it being illicitly mixed with other street drugs, including fentanyl and heroin. Xylazine is a very dangerous drug and is approved for veterinary use only. When used by humans, it leads to severe side effects.
Authorities are working to improve harm reduction, withdrawal management and treatment for someone purposefully or accidentally misusing xylazine.
Key Facts
- It is crucial to understand what xylazine (tranq) is, what it looks like and the dangers it poses to individuals.
- The short-term side effects can be severe, sometimes leading to overdose.
- Narcan does not work on xylazine since it is not an opioid.
- Harm reduction techniques, withdrawal management and addiction treatment are available for anyone using xylazine.
What Is Xylazine (Tranq)?
Xylazine, referred to as “tranq” on the street, is a powerful veterinary sedative and analgesic that is primarily used to calm large animals like horses. While not approved for human use, it has increasingly been found mixed with illicit opioids and sold for human use in some communities.
The street name “tranq” comes from its tranquilizing effects. Dealers sometimes mix it with heroin, fentanyl or other drugs to increase the sedative effect, but this also significantly increases the risk of overdose.
Xylazine is not currently scheduled under the federal Controlled Substances Act, as it is only approved for veterinary use. This means that, at the federal level, it is not classified in the same way as drugs like heroin, fentanyl or cocaine, even though it is increasingly appearing in the illicit drug supply.
In response to its growing presence in the illicit drug supply, some states have classified xylazine as a controlled substance. State laws vary, so Xylazine’s legal status can differ by location.
Veterinary Use vs Human Dangers
Like other sedatives, it makes users feel extremely relaxed or numb, which is similar to the effect it has on animals.
Unfortunately, in humans, it can be dangerous, causing severe central nervous system problems, including:
- Respiratory depression
- Dangerously low blood pressure
- Prolonged sedation
Xylazine is not reversed by naloxone, the typical opioid antidote. Therefore, using naloxone may not help in overdose situations.
What Does Xylazine Look Like?
In veterinary medicine, it is clearly labeled as a pharmaceutical product for animal use only and typically comes in a clear liquid injectable solution in sealed vials.
The street form of xylazine is very hard to detect visually. On the street, xylazine is often found as a white, off-white or sometimes brown powder. It is frequently blended with substances such as heroin or fentanyl to increase sedative effects.
The Rise of Tranq and Xylazine Addiction
Xylazine has rapidly spread throughout the illicit drug market in the United States. Due to its growing presence in overdose cases and nationwide drug seizures, federal officials have designated fentanyl adulterated with xylazine as an emerging drug threat.
Stats, and Recent Trends with Xylazine
Centers for Disease Control analyses showed that the rate of overdose deaths involving xylazine increased 35-fold between 2018 and 2021, rising from 102 deaths in 2018 to 3,468 deaths in 2021.
In fentanyl-related overdose deaths specifically, xylazine’s presence increased from about 3% of cases in January 2019 to nearly 11% by June 2022, reflecting a dramatic escalation in its role within the illicit drug supply.
Xylazine’s presence in the illicit drug market first gained attention in Puerto Rico in the early 2000s, where it was used as an adulterant in heroin. It later appeared prominently in Philadelphia, where it became widespread in the local opioid supply before spreading across many regions of the United States alongside fentanyl.
Poly-Substance Use
Xylazine is commonly mixed with fentanyl because it can extend the drug’s short-lived effects. Fentanyl produces a very intense but brief opioid “high,” which can wear off quickly. By adding Xylazine, it can prolong the sedating effects, making the high feel longer-lasting even though the actual opioid effect has faded.
This combination significantly increases the danger of overdose. This is because Xylazine is a central nervous system depressant, meaning it slows breathing, heart rate and blood pressure. When it is combined with other depressants such as fentanyl, heroin or alcohol, these effects compound and can suppress breathing to life-threatening levels.
This stacking of depressant effects dramatically raises the risk of fatal overdose and can make overdoses more difficult to reverse because xylazine does not respond to opioid-reversal medications like naloxone.
Signs and Side Effects of Xylazine Use
People exposed to xylazine may experience several immediate and dangerous short-term mental and physical side effects, including:
- Extreme sedation or the “heavy nod”
- Drowsiness and loss of consciousness
- Low blood pressure
- Slowed heart rate
- Slowed or suppressed breathing
- Blurred or impaired vision
- Dizziness and poor coordination
- Confusion or mental disorientation
- Slurred speech
- High blood sugar
- Severe skin ulcers
- Loss of bladder control
Because xylazine can produce such profound sedation, users may become physically unable to move or protect themselves. Individuals may remain unconscious or disoriented, putting them at risk of harsh environmental conditions and assaults.
Severe Skin Ulcers, Wounds, and Sores
One of the most distinctive and dangerous effects associated with xylazine use is the development of severe skin ulcers and open wounds. This is because the drug causes tissue death by reducing blood flow and oxygen to the skin. These xylazine-related ulcers can appear anywhere on the body, even in areas where the drug was not injected.
If left untreated, these wounds can lead to serious complications including severe infection, sepsis and death. In advanced cases, the tissue may begin to rot, producing a condition that requires urgent medical care. When the damage is extensive and cannot be reversed, surgical intervention, including partial or full limb amputation, may be necessary.
Xylazine Overdose and Narcan Resistance
A xylazine, or “tranq,” overdose is extremely dangerous because the drug severely depresses the central nervous system. Xylazine slows breathing, heart rate, and blood pressure, which can quickly lead to respiratory failure, unconsciousness or cardiac complications.
Because it is frequently mixed with opioids like fentanyl or heroin, the combined depressant effects can make an overdose particularly severe and increase the likelihood of death.
Signs of a Tranq Overdose
It is crucial to recognize the signs of a xylazine overdose. As soon as you recognize the signs, you must seek help immediately.
Signs include:
- Unresponsiveness or inability to wake the person
- Extreme sedation or deep unconsciousness
- Very slow, shallow, or stopped breathing
- Dangerously slow heart rate
- Low blood pressure
- Blue, gray, or pale skin, lips or fingernails
- Cold or clammy skin
- Confusion or inability to respond to verbal or physical stimulation
- Weak pulse
- Snoring, choking or gurgling sounds due to impaired breathing
While a tranq overdose may look similar to an opioid overdose, it often involves deeper and more prolonged symptoms. Individuals may appear heavily sedated, unconscious for long periods or unable to respond to stimulation.
Narcan Resistance in Overdoses
Xylazine is not an opioid; it is an alpha-2 agonist. Therefore, its sedative effects are not reversed by naloxone. Even if naloxone restores breathing from the opioid component, the person may remain deeply sedated because the xylazine is still active in the body, requiring continued monitoring and emergency medical care.
Narcan should still be administered because xylazine is almost always mixed with fentanyl, and reversing the opioid component may help restore breathing.
Harm Reduction
Xylazine test strips have emerged as an important harm-reduction tool designed to help people detect the presence of xylazine in the illicit drug supply. This simple screening method can help people make more informed decisions and potentially avoid substances that contain the sedative.
Testing drugs can reduce the risk of accidental ingestion, especially as xylazine continues to appear in more parts of the drug market. However, it is important to recognize that drug checking does not eliminate the dangers associated with substance use. Someone may still face the risks of poly-substance use and unpredictable drug potency.
Xylazine Withdrawal and Detection
Xylazine withdrawal can occur in people who have been regularly exposed to the drug, especially when it is frequently mixed with substances like fentanyl.
Symptoms may include:
- Severe anxiety or agitation
- Restlessness and irritability
- Rapid heart rate
- High blood pressure
- Tremors or shaking
- Sweating
- Insomnia or difficulty sleeping
- Nausea and vomiting
- Confusion or mental distress
This overlap in withdrawal symptoms makes medical support so important. Supportive medical care, monitoring, and symptom management with medications in a professional treatment setting can help reduce complications and improve comfort during withdrawal.
How Long Is Xylazine Present in the Body?
Xylazine has a relatively short half-life in the body, but its sedative effects can last for several hours. Research suggests the drug has a half-life of 25 to 30 minutes, meaning the plasma concentration of the drug is reduced in the body by 50%. Despite its short half-life, xylazine can still be detected in certain bodily fluid samples for longer periods.
Xylazine can typically be detected in urine for about 1 day, depending on dosage and individual metabolism. It may also be detected in blood and hair samples.One challenge in identifying xylazine exposure is that standard hospital drug screens often do not test for it.
Treatment for Xylazine (Tranq) Addiction
There is currently no FDA-approved medication specifically designed to treat xylazine addiction or withdrawal, so a medically supervised detox is often necessary to support individuals going through withdrawal.
Xylazine affects the central nervous system and cardiovascular system, so withdrawal can involve symptoms such as agitation, anxiety, rapid heart rate and dangerous changes in blood pressure.
In an inpatient medical detox setting, healthcare providers can closely monitor vital signs, manage complications and provide supportive care to keep patients safe and stable during the withdrawal process.
Clinicians may also use certain medications off-label to help manage symptoms. For example, alpha-2 adrenergic agonists such as Clonidine may be used to help reduce agitation and stabilize blood pressure. Because xylazine itself acts on similar receptors in the body, these medications can sometimes ease withdrawal-related symptoms.
Medical staff also monitor and treat blood pressure fluctuations and other cardiovascular effects, ensuring patients receive appropriate care as their bodies adjust during detox.
Comprehensive Xylazine Addiction Treatment
Effective treatment for people who abuse xylazine often requires a multidisciplinary approach that addresses both substance use and the serious physical complications associated with the drug.
Because xylazine is frequently mixed with opioids like fentanyl or heroin, many individuals benefit from comprehensive substance use disorder treatment that includes evidence-based therapies such as cognitive behavioral therapy (CBT).
Programs may also incorporate medication-assisted treatment (MAT) to treat co-occurring opioid addiction and reduce the risk of overdose and relapse.
At the same time, many patients require intensive wound care to treat the severe skin ulcers and infections associated with xylazine exposure. This may involve medical evaluation, infection management, specialized wound treatment and, in some cases, surgical care.
Coordinating addiction treatment with medical services ensures that both the substance use disorder and the physical health consequences are addressed at the same time.
Xylazine (Tranq) Addiction FAQs
No, it is a non-opioid central nervous system depressant and veterinary tranquilizer, which is why opioid reversal drugs cannot undo its sedative effects.
Illicit drug manufacturers add xylazine to fentanyl to bulk up the drug and prolong the euphoric effects of the fentanyl, mimicking the longer high of heroin.
Yes, but they require immediate, specialized medical wound care, antibiotics and abstaining from further use as untreated wounds can lead to amputation.
No, an overdose requires immediate emergency medical attention. Call 911, then administer Narcan since there is likely a presence of opioids and perform rescue breathing until help arrives.
Find Treatment Near You
The dangers associated with xylazine addiction highlight the importance of seeking professional help for substance use and polysubstance exposure. If you or someone you care about is struggling with substance use, with the potential involvement of xylazine, reaching out for help can be the first step toward healing.
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