Nitazene Overdose Deaths: The Silent Epidemic Nobody Sees Coming

Ashley Delgado had big plans. Growing up in Cleveland, Ohio, she dreamed of becoming a doctor and one day buying her father a Rolls-Royce. Nitazene overdose deaths were the last thing on anyone’s mind in her family. “She wanted to heal people,” said her father, James Taylor. She graduated high school with a high GPA, excelling in science. Nobody who knew her then could have imagined how her story would end.

A leg injury in her mid-twenties led to a prescription for OxyContin. What followed pulled her from prescription painkillers to heroin and then fentanyl. Her family supported her through rehabilitation, and she moved into a sober living home. But on an early summer morning in 2023, Ashley died on a dead-end street just outside Cleveland. She was 29.

Toxicology results later found protonitazene and metonitazene in her system. Her father had never heard those words before. Most people have not. Yet these ultra-potent synthetic opioids, known as nitazenes, now turn up in drug supplies across 48 of the 50 United States. The synthetic opioid crisis is deepening fast.

What Are Nitazenes?

Scientists developed nitazenes in the 1950s as potential painkillers. They pulled them from development before the drugs ever reached the market because they judged them too dangerous for medical use. Decades later, they have resurfaced in the illicit supply. Some variants run up to 40 times stronger than fentanyl and 500 times more potent than heroin.

Unlike fentanyl, which has sat at the centre of America’s opioid crisis for years, nitazenes remain largely unknown outside specialist circles. That obscurity makes them particularly dangerous. Someone taking what they believe to be oxycodone, cocaine, or even cannabis may unknowingly consume a nitazene-laced substance. By the time anyone realises, it is often too late.

The US Drug Enforcement Administration (DEA) began tracking nitazene seizures around 2014. Numbers jumped sharply in 2019. DEA data from the National Forensic Laboratory Information System show confirmed seizures rising from 43 positive tests in 2019 to nearly 2,000 in 2024. By March 2025, laboratories had recorded more than 8,000 nitazene reports since 2019.

A Rising Body Count Tied to the Synthetic Opioid Crisis

The Centers for Disease Control and Prevention (CDC) confirm more than 1,100 confirmed nitazene overdose deaths through its State Unintentional Drug Overdose Reporting System. But experts believe the true number of Americans who died since 2019 could reach 2,000 or more.

“There are only limited forensic toxicology labs that test for nitazenes,” said Alex Krotulski, director of the Centre for Forensic Science Research and Education in Pennsylvania. “If a nitazene was present and the lab didn’t test for it, the number wouldn’t appear in the data.”

CDC figures covering 2023 and 2024 recorded 747 confirmed deaths across those two years alone, making them the deadliest period on record. The United Nations Office on Drugs and Crime (UNODC) reports the United States has identified 26 distinct nitazene types since 2019, placing it second globally behind only Canada.

Ohio: Ground Zero for Nitazene Overdose Deaths

Ohio stands apart from every other US state. DEA data from 2019 to 2024 show more than a third of all positive nitazene laboratory reports nationally link back to Ohio. CDC figures show Ohio has recorded the highest number of nitazene overdose deaths in the country since 2021. Four people died in 2020. That number rose to 90 in 2021. A further 200 deaths followed between 2022 and 2024.

County data from Ohio’s Bureau of Criminal Investigation show Scioto, Butler, and Cuyahoga counties account for nearly half of all nitazene detections across the state by weight. These communities have carried the weight of the opioid crisis for decades. Portsmouth in Scioto County once earned the label “pill mill capital” of America. In Cuyahoga County, which includes Cleveland, drug-related mortality ran at triple the national average in 2022.

Ohio Governor Mike DeWine issued executive orders scheduling nine nitazene variants as illegal substances and legalised drug-checking tools. Those working on the ground say the response still falls short.

“It is a risk to our community,” said AmandaLynn Reese, chief programme officer at Harm Reduction Ohio. “There’s been several instances of nitazenes being reported within the community, and I think we’re going to see more of that, especially as we’re seeing less fentanyl.”

Dealers Are Fuelling the Synthetic Opioid Crisis

The nitazene threat grows because dealers deliberately add these drugs to other substances. Medical examiner records from Cuyahoga County covering all 45 nitazene-related deaths in 2023 and 2024 confirm that nitazenes appeared alongside fentanyl in every single case. Most deaths also involved heroin, cocaine, methamphetamine, or benzodiazepines.

Frank Tarentino, Associate Chief of Operations for the DEA’s Northeast Region, said dealers mix nitazenes into other drugs to increase potency and, in turn, demand.

“It becomes a brand,” he said. “The unfortunate circumstance that we find ourselves in is that the dealer’s choice becomes a deadly decision.”

Court records show nitazenes selling at prices between roughly $4,000 and $40,000 per kilogram. Given their potency, sellers can dilute even small quantities into hundreds of thousands of doses once pressed into pills. “A little bit can go a long way,” Tarentino said, “and they can make a lot of money.”

How Nitazenes Cross Into the Country

US Customs and Border Protection intercepted 41 nitazene consignments in 2024 and 2025 combined. Most arrived by mail from mainland China, Hong Kong, and the United Kingdom. Shipments ranged from under one gram to almost 700 grams.

In Florida, a man named Will Catis found suppliers through a basic internet search. He bought roughly four kilograms of nitazenes from a Chinese company in small batches through the US Postal Service. Courts sentenced him to 12 years in prison after he pleaded guilty to possessing and intending to distribute the drug.

In what may be the largest single seizure on record, Valkar Singh allegedly drove across the Canadian border with six industrial-sized buckets containing more than 100,000 pills laced with isotonitazene. Singh has pleaded guilty and awaits sentencing.

“Canada has become a major concern, but also a major partner in trying to stop the synthetic opioids that are coming into the United States,” Tarentino said.

Most buyers are not large-scale traffickers. Philip Berry, a visiting senior lecturer at King’s College London and former counter-narcotics official at the UK Home Office, said street-level and mid-level dealers drive most of the nitazene distribution in the US, not major drug organisations. Buyers find suppliers through dark web markets, chemical supplier websites, and even open social media platforms.

An Arms Race With No Clear End

Enforcement efforts have scored wins, but the synthetic opioid crisis keeps adapting. In June 2025, Europol coordinated the dismantling of Archetyp Market, a major dark web drug platform. China placed most nitazenes under national control in July 2025.

Yet manufacturers move faster than regulators. China banned all fentanyl-related substances in 2019. Reports of distinct fentanyl variants internationally fell sharply, but nitazene reports rose to fill the gap. Now that China targets nitazenes, a new class of synthetic opioids called orphines is climbing. Orphines carry roughly the same potency as fentanyl. More than 150 orphine cases surfaced in the US between 2024 and 2025, most of them in Illinois.

“Orphines have just enough of a molecular difference that they aren’t covered by the core definition China has made,” said Jared Brown, scientific affairs officer at the UNODC.

What Needs to Happen Now

Community organisations call for faster expansion of drug-checking services, broader naloxone access, and clearer public education about what the current supply contains. Naloxone can reverse an opioid overdose, but experts warn it may need higher doses or repeat administration when nitazenes are involved.

The synthetic opioid crisis does not wait for policy to catch up. People who use drugs need information and tools now, before they encounter a substance they cannot identify.

“People are going to use drugs,” said Reese of Harm Reduction Ohio. “We don’t know the supply, but those are ways you can engage in your drug use to increase safety and reduce harm.”

For James Taylor, no prosecution or policy announcement brings back the daughter who wanted to be a doctor. “I have lost my father, my grandmother. That hurts,” he said. “But when you lose your child, that’s the worst thing on the planet, because they’re not supposed to go before you.”

Ashley’s story is one of thousands. Nitazene overdose deaths keep rising. Unless governments and health agencies move faster than those supplying the drugs, it will not be the last story like hers.

Source: dbrecoveryresources