How Strong Is Metonitazene Compared to Fentanyl?
Metonitazene is a potent synthetic opioid that has emerged in the illicit drug supply and is considered to have a potency similar to or greater than fentanyl. It is estimated to be 30 to 200 times more potent than morphine, compared to fentanyl, which can be 50 to 100 times stronger than morphine. This means that metonitazene carries a high risk of life-threatening effects like respiratory depression and overdose, even in small amounts, similar to fentanyl. Its strength and unpredictability make it a significant concern in the ongoing opioid crisis.
Table of contents
» What Is Metonitazene?
» How Does Metonitazene Compare to Fentanyl in Potency?
» Why Is Metonitazene so Dangerous?
» Can Naloxone Reverse a Metonitazene Overdose?
» Key Takeaways on Metonitazene
» Resources
What Is Metonitazene?
Metonitazene is a highly potent synthetic opioid that falls under the nitazene category of drugs. As reported by the journal Drug Testing and Analysis, it emerged in the recreational drug market around mid-2020. It has since become part of an increasing list of new synthetic opioids that are linked to fatalities among drug users in the United States and globally. Initially developed in the 1950s as a possible pain relief medication, similar to other nitazenes, it was never approved for medical use due to its high potential for dependence and dangerous side effects.
Like other potent opioids, this substance can lead to serious negative effects, such as overdose and respiratory depression, which can be deadly. Given its extreme potency, even minuscule doses of the substance can result in a life-threatening overdose, especially when combined with other depressants like alcohol or benzodiazepines.
It has been increasingly detected in the illegal drug market, often sold as or blended with other substances like ketamine, heroin, methamphetamine, or counterfeit pills, typically without the user’s awareness. In many countries, including the United States, the substance is a Schedule I controlled substance due to its high potential for abuse and lack of accepted medical use.
How Does Metonitazene Compare to Fentanyl in Potency?
Both fentanyl and metonitazene are highly potent synthetic opioids that carry a significant risk of overdose. The U.S. Department of Justice indicates that pharmacological evidence suggests the substance may be as powerful as or even more potent than fentanyl.
Unlike metonitazene, which has no approved medical applications, medical-grade fentanyl is administered by healthcare professionals in specific situations. Despite both being potent opioids, fentanyl has received approval for medical use due to its established benefit-to-risk profile and the stringent drug approval process.
While certain nitazene analogs can be much stronger than fentanyl—some even dozens of times more potent—metonitazene generally falls within a similar range, with the potential to be up to 200 times stronger than morphine. The extreme potency of the substance means that even small amounts can quickly result in fatal respiratory depression, much like fentanyl. However, the substance is a relatively new synthetic opioid, and its pharmacological characteristics and effects on humans are not as thoroughly understood as those of fentanyl, which adds to the unpredictability of its use. Additionally, other nitazene analogs that are significantly more potent may be present alongside the opioid, contributing to the variability in potency that is significantly contributing to Florida’s growing fentanyl crisis.
Why Is Metonitazene so Dangerous?
Metonitazene poses significant dangers for several crucial reasons, similar to those fueling Florida’s fentanyl overdose epidemic, primarily stemming from its nature as an illicitly manufactured synthetic opioid:
- Extreme Potency: It is considered equipotent or stronger than fentanyl, which means that even an amount comparable to a few grains can be fatal, leaving users with a very slim margin for error.
- Respiratory Depression: Like all opioids, the substance primarily slows down breathing by acting on the central nervous system. Due to its high potency, it can lead to severe and rapid respiratory depression, resulting in hypoxia, or insufficient oxygen supply to essential organs, and swift death if not promptly addressed.
- Unknown and Inconsistent Dosing: It is produced in illegal labs lacking quality control, which can lead to inconsistent potencies. Users cannot ascertain the exact concentration of the drug in any specific batch, causing significant fluctuations in dosages from one use to another.
- Contamination and Adulteration: It is often mixed with or disguised as drugs like heroin, cocaine, ketamine, or fake prescription pills. Users may unknowingly consume it, leading to a higher risk of overdose, especially for those without opioid tolerance.
- Detection Challenges: There are no standard screening tests for nitazenes like metonitazene, making rapid identification in overdoses difficult. Fentanyl test strips also fail to detect nitazenes, increasing users’ risk of unknowingly consuming them.
- Rapid Onset of Effects: It can have a rapid onset of effects, meaning users can quickly become unresponsive or experience severe respiratory depression, leaving little time for intervention.
- High Addiction Potential: It is a strong opioid with a high risk of tolerance and dependence, leading to severe withdrawal symptoms that can drive continued use and increase harm.
- Lack of Medical Use or Research: There is limited clinical data on metonitazene’s full range of effects, long-term consequences, and interactions, making its risks even less predictable.
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Can Naloxone Reverse a Metonitazene Overdose?
Also known by the brand name Narcan, naloxone is a crucial medication designed to quickly reverse the effects of an opioid overdose, including that of metonitazene. As an opioid antagonist, naloxone functions by attaching to the same opioid receptors in the brain as the substance, effectively obstructing or reversing its effects.
However, the Centers for Disease Control and Prevention (CDC) highlights that due to the strength of the opioid, several doses of naloxone may be necessary to fully reverse the overdose. Consequently, for anyone exhibiting signs of a drug overdose, it is always advisable to:
- Administer naloxone immediately.
- Call 911 right away, even if naloxone has been administered and the individual appears to be recovering. The effects of naloxone are temporary, and the opioid may linger in the system longer, potentially resulting in a second overdose.
- Continue to monitor the individual and administer additional doses of naloxone every 2 to 3 minutes if they do not respond or if their breathing slows again.
- Administer rescue breathing or CPR if the individual is not breathing or lacks a pulse until paramedics arrive.
Key Takeaways on Metonitazene
- Metonitazene is a highly potent synthetic opioid, estimated to be 30 to 200 times stronger than morphine, potentially equal to or stronger than fentanyl.
- Initially created in the 1950s for pain management, it was never approved for medical use because of its significant risk of dependence and severe side effects.
- Even tiny amounts of the substance can lead to life-threatening respiratory depression and overdose, particularly when combined with other depressants such as benzodiazepines and alcohol.
- Its manufacture in illicit laboratories leads to variable dosing and potency, rendering it extremely unpredictable and hazardous for users.
- Naloxone (Narcan) can reverse opioid overdose, but multiple doses may be required due to its extreme potency.
The substance’s unpredictability, potency, and the extensive contamination of the drug supply put anyone using illicit substances at risk of a fatal overdose. If you or a loved one is facing challenges with opioid or other substance use, it is crucial to seek professional addiction treatment immediately.
At WhiteSands Treatment in Florida, we understand the gravity of the opioid crisis, and we are here to help. Our customized treatment plans address the physical, mental, and emotional dimensions of addiction, while providing individuals with the necessary tools and strategies to establish a strong foundation for long-term recovery. Our comprehensive treatment programs encompass medical detox, inpatient care, outpatient services, mental health support, and relapse prevention, ensuring we can meet your specific needs.
Reach out to WhiteSands Alcohol and Drug Rehab today at 877-855-3470 to speak to an admissions specialist who can verify your insurance and answer any questions you may have about the recovery process.
Resources
- Drug Testing and Analysis – Forensic toxicology assessment of a potent new synthetic opioid using liquid chromatography mass spectrometry.
- U.S. Department of Justice – (NPS Opioid)
- Centers for Disease Control and Prevention (CDC) – Nitazene-Related Deaths – Tennessee, 2019-2021
If you or a loved one needs help with abuse and/or treatment, please call the WhiteSands Treatment at (877) 855-3470. Our addiction specialists can assess your recovery needs and help you get the addiction treatment that provides the best chance for your long-term recovery.
About the Author
Jackie has been involved in the substance abuse and addiction treatment sector for over five years and this is something that she is truly eager about. She has a passion for writing and continuously works to create informative pieces that not only educate and inform the public about the disease of addiction but also provide solutions for those who struggle with drug and alcohol abuse.
