A dangerous new class of synthetic opioids has been spreading across Tennessee and Mississippi, posing unprecedented risks to communities already grappling with substance abuse crises.

Nitazenes opioids, which can be up to 20 times more powerful than fentanyl and hundreds of times stronger than morphine, have been increasingly detected in the region over recent months. These ultra-potent nitazenes are often mixed with fentanyl in pills, powders and liquid forms, creating a lethal combination that’s catching medical professionals off guard.

The Evolution of Illicit Drugs

According to Vanderbilt University Medical Centre, these powerful synthetic opioids first appeared on the illegal drug market in 2019. By late 2025, they were being found with alarming frequency in overdose cases across the American South.

Dr Lucas Trautman, medical director of Oxford Treatment Centre, has described the emergence of nitazenes as part of a troubling evolution in the illegal drug trade. “Illicit chemists are always trying to stay one step ahead of detection,” he explained. “Some are old compounds being repurposed, whilst others are brand new. They’re showing up all across the United States, including right here in Lafayette County.”

Detection Challenges

What makes nitazenes particularly dangerous is their ability to evade standard toxicology screening. Conventional tests typically identify substances such as fentanyl, oxycodone or heroin but fail to detect nitazene compounds.

“You’ll have someone who overdosed, and their toxicology report comes back negative,” Dr Trautman said. “Only when the sample is sent to a specialised laboratory do we discover emerging substances like isotonitazene or its derivatives.”

Unlike fentanyl, which has legitimate medical applications, nitazenes opioids serve no approved medical purpose in the United States and exist entirely within the black market. Even minute variations in chemical composition can drastically increase their lethality.

Microscopic but Deadly Doses

The potency of these synthetic opioids is staggering. “We’re talking about doses measured in grains of salt,” Dr Trautman warned. “That’s what makes these so deadly—just a small amount can stop someone’s breathing.”

Whilst naloxone (known commercially as Narcan) can reverse the respiratory depression caused by nitazenes opioids, multiple doses are often required due to their extreme strength.

“Narcan works, but you may have to use two or more doses,” Dr Trautman noted. “If Narcan isn’t available in the hands of bystanders, that person could die before emergency services arrive.”

The Tranq Complication

Compounding the crisis is the growing presence of xylazine, known on the streets as “tranq”. This veterinary sedative is increasingly being mixed with opioids to enhance their effects, creating an even more dangerous situation.

Unlike opioid overdoses, naloxone cannot reverse xylazine poisoning. Victims must be resuscitated manually until they can be intubated by emergency personnel. “With tranq, Narcan doesn’t work,” Dr Trautman emphasised. “You have to breathe for them until help arrives.”

Tranq also causes severe skin ulceration and tissue necrosis at injection sites, with social media videos showing users with rotting flesh and exposed tissue. “It’s grisly,” Dr Trautman said. “We’re seeing entire forearms where the flesh has rotted away. That’s a hallmark of tranq use.”

Hidden Dangers for Young People

Dr Trautman warned that nitazenes opioids are frequently concealed in counterfeit pills sold online, particularly targeting university students seeking study aids such as Adderall or Xanax from fake internet pharmacies.

“A lot of university students think they’re ordering Adderall online, but those pills are often pressed with nitazenes and fentanyl,” he said. “They’re not consenting to take lethal opioids—they think they’re taking a prescription medication.”

Even more concerning, illicit THC vaping products—distinct from those regulated through approved medical cannabis dispensaries—have been found to contain synthetic opioids.

“Teenagers think they’re using THC vapes, but their toxicology reports show nitazenes and fentanyl,” Dr Trautman revealed. “It’s incredibly dangerous.”

Other Emerging Threats

Dr Trautman also highlighted the rise of easily accessible substances such as kratom and tianeptine, marketed under names like Zaza Red. Despite being labelled as non-addictive, these substances act as opioids.

“We’ve had people come into treatment on kratom saying it’s the worst withdrawal they’ve ever been through,” he said. “They thought they were taking something safe.”

Treatment and Prevention

Despite the escalating threat posed by these ultra-potent synthetic opioids, Dr Trautman stressed that effective treatment remains available. Individuals seeking help are protected by federal confidentiality laws, removing barriers related to fear of criminalisation.

“People fear being criminalised, but treatment is confidential under federal law,” he explained. “They can telephone a treatment centre, show up within an hour and start getting help. Treatment works for this.”

Ongoing Challenges

Efforts by federal and local agencies to prevent nitazenes and tranq from entering North Mississippi continue, though the task is complicated by international supply chains.

“These drugs come from illicit chemists overseas, shipped to Mexico where they’re cut and packaged, then brought here illegally,” Dr Trautman said. “They’re not made in Lafayette County, but they’re definitely here.”

Community Defence

Dr Trautman emphasised that awareness and access to naloxone remain the community’s most effective defences against this growing crisis.

“People need to know what’s out there,” he concluded. “These substances are lethal, unpredictable and everywhere. But with the right information and quick response, we can save lives.”

Source: Oxford Eagle