Nitazenes in Missouri: New Opioid Threat Emerging

I recently read: https://www.kcur.org/health/2026-03-29/missouri-nitazene-opioid-addiction-schools

The detection of nitazenes in wastewater is taking a familiar path. As recently reported by KCUR (March 29, 2026), emerging synthetic opioids are once again signaling a shift in the overdose crisis.

Ever since prescription opioids were widely introduced in the mid-1990s for the treatment of “chronic” pain, the epidemic has grown and morphed almost every year. Heroin from Mexico emerged as a cheap alternative to prescription opioids, followed a decade or two later by fentanyl, which sent overdose numbers soaring. In the last twenty-five years, the United States has lost over 1 million people to opioid overdoses, according to CDC data.

Fentanyl has become a common contaminant in other illicit drugs like cocaine and methamphetamine, meaning individuals may unknowingly be exposed to opioids. The more potent the drug, the greater the risk of overdose. Nitazenes, a class of synthetic opioids highlighted in recent reporting, are believed to be significantly more potent than fentanyl, raising serious concerns about what comes next.

If we look back at the response to the opioid epidemic, there is reason to worry it may once again be too little, too late. The two dominant components of the response have been opioid substitution treatment with methadone and buprenorphine, along with the widespread distribution of the opioid reversal drug naloxone (Narcan).

While these tools are important, they have not been sufficient on their own to drastically reduce overdose deaths. Recent reports have noted a decline in overdose deaths over the past two years, but the causes of that decline remain unclear and are likely multifactorial—including changes in drug supply, increased awareness, and expanded access to interventions.

There has also been limited discussion about the practical limitations of current strategies. Medications like methadone and buprenorphine are highly regulated and cannot simply be made available over the counter. Naloxone, while lifesaving, is a reactive measure rather than a preventative one and can require multiple administrations in the case of highly potent synthetic opioids.

A third medication, naltrexone—the only non-opioid treatment option—has the potential for broader deployment but remains underutilized in many treatment settings.

As new synthetic opioids like nitazenes emerge, the question is not whether the crisis will evolve again, but whether our response will evolve with it.

If you or a loved one in Missouri is struggling with opioid use, Assisted Recovery Centers of America offers evidence-based treatment and support across the region.

If you would like to connect with Percy Menzies, M. Pharm., regarding this article, you can reach him through his LinkedIn profile