1. JAMA Netw Open. 2023;6(8):e2331264. doi:10.1001/jamanetworkopen.2023.31264
2. Toronto Drug Checking Services: Expected Fentanyl samples containing other substances.
3. Responding To Synthetic Opioids In The UK Drugs Market. Transform Drug Policy Foundation. https://transformdrugs.org/blog/responding-to-nitazenes-in-the-uk-drugs-market#:~:text=Nitazenes%20are%20synthetic%20opioids%20%2D%20laboratory,like%20diazepam%3B%20and%20cannabis%20products. December 1, 2023. Accessed April 19, 2024.
4. New, Dangerous Synthetic Opioid in D.C., Emerging in Tri-State Area. DEA Washington, DC Division – Public Information Office. DEA United States Drug Enforcement Administration. https://www.dea.gov/stories/2022/2022-06/2022-06-01/new-dangerous-synthetic-opioid-dc-emerging-tri-state-area. June 1, 2022. Accessed April 19, 2024.

*A negative result can be interpreted as soon as both the test (T) and control (C) lines appear. A positive result can be interpreted once the control line has appeared and the background has cleared to white, typically by 60 seconds. Do not read results after 10 minutes.

• The test device is NOT intended to determine the purity, composition, or if the substance being examined is safe to use.
• A positive or negative test result is NOT an indication that the substance being examined is safe to use. Many factors come into play when examining the samples, including but not limited to mixture of multiple substances, solubility, and pH of the sample.
• BTNX Inc. does not encourage the use, supply, or production of illegal drugs or controlled substances in any way. The device is intended for harm reduction purposes. Follow the advice of your local harm reduction or public health agency.
• There is a possibility that technical or procedural errors as well as other substances and factors may interfere with the Rapid Response™ Nitazene Test Strip (Liquid / Powder) and cause false results.
• A positive result indicates the presence of nitazene only and does not indicate quantity.
• A negative result does not at any time rule out the presence of nitazene, as they may be present below the minimum detection level of the test.

• Please note that certain products may only be available in specific regions; kindly consult with a sales representative for further information regarding product availability.
• The information provided on this website is for educational purposes only and should not be construed as medical advice. Always consult with a qualified healthcare professional regarding any medical concerns or conditions.
• Our products are intended for use as specified in the product documentation. It is important to carefully read and follow all instructions provided with the product.