Fentanyl test strips can protect someone from a fatal fentanyl overdose before it happens and start a meaningful conversation about the safety of drug use.

A fentanyl test strip may help stop an overdose before it happens, but not during an emergency situation.

If you or someone you know may be overdosing on fentanyl, you should immediately call emergency services using 911 and administer naloxone (Narcan) if you have it available. The biggest danger someone overdosing on fentanyl faces is respiratory arrest. Position the person overdosing on their side to keep their airway open and be prepared to administer CPR if necessary while waiting for emergency services to respond.

Article at a Glance:

  • Opioid abuse is one of the key causes of fatal overdoses.
  • Fentanyl may be included in common street drugs, increasing the danger of an overdose.
  • Fentanyl test kits allow individuals to test substances for fentanyl.
  • There is no way to eliminate the dangers of substance abuse. However, testing for fentanyl may decrease these risks.

Opioid abuse is the cause of nationwide public health crises and deaths each year. According to the Centers for Disease Control and Prevention (CDC), there were more than 92,000 drug overdoses that resulted in death in 2020. The CDC also reports that between 2018 and 2019, deaths related to the use of synthetic opioids such as fentanyl increased by 16%. Communities across the United States are deeply affected by the issues associated with opioid addiction.

What Are Fentanyl Test Kits/Strips?

Because of its potential for abuse and high potency, researchers have developed fentanyl test kits. The strips can identify if a substance contains fentanyl or if an individual has fentanyl present in their body. Fentanyl test strips, as well as overdose kits, such as Narcan, can help people prevent and avoid fentanyl use or overdose.

How To Use a Fentanyl Test Strip

Fentanyl testing strips can be used as a harm-reduction technique to test for the presence of fentanyl in a substance or test urine to detect fentanyl in the body.

After applying liquid to the strip, the results will indicate:

  • One line for a positive result
  • Two lines for a negative result

IMPORTANT: The results of a fentanyl test strip will be the opposite of many other common over-the-counter tests, such as pregnancy tests, in which a single line indicates a negative result.

Reducing Your Overdose Risk

Fentanyl may be included in street drugs to increase their potency but will also significantly increase the risk of an overdose. Ultimately, the safest way to reduce your overdose risk is to avoid purchasing and using street drugs. If you do choose to use these drugs, testing them before use, having Narcan available, and not using them by yourself all decrease the danger associated with potential fentanyl overdose. There is, however, always a real danger with using street drugs that can never be eliminated.

Common Reasons for Using Fentanyl Test Kits

In a trial conducted at Brown University, researchers gave participants naloxone overdose kits and conducted surveys before providing fentanyl test strips for them to use. Students were given the kits to test either urine or suspicious drugs. Afterward, they were asked for feedback. The study found that a majority of students believed the test strips were easy to use. There were multiple results:

  • Most students who used the test strips did so to find out if their drugs had fentanyl.
  • More students tested drug residue than urine.
  • Without being asked to, participants reported that they gave some test strips to people they thought were at a high risk for overdose.
  • Drugs were tested privately because of concerns about legal matters.
  • Students reported behavior changes based on finding fentanyl in drugs.

Fentanyl test strips are proving to be a helpful way to form meaningful conversations about the safety of drug use.

Are Fentanyl Test Strips Useful?

According to the Harm Reduction Coalition, fentanyl test strips were tested in a San Francisco pilot program between 2017 and 2018 as a response to growing drug use in the area. People who were purchasing drugs used the strips to test their drugs for fentanyl. Many times, they were not intending to purchase fentanyl, but the test strips revealed that the substance was present.

Researchers had multiple positive findings about the use of fentanyl test strips, including:

  • Increased engagement and discussion with drug users
  • Test strips were simple and intuitive, requiring little instruction
  • Community feedback about the availability of test strips was positive
  • Test strips were accurate in determining the presence of fentanyl
  • Test strips led to harm reduction and information sharing
  • When drug users unexpectedly found fentanyl present, they were less likely to purchase that specific drug from the specific supplier

The sensitivity and accuracy of the test strips were high, making them effective for determining the contents of drugs and redirecting drug use. Participants in this study voluntarily gave feedback about whether they had ever tested their drugs before — most had not. When asked if they would be more likely to do so if they had test strips readily available, most responded positively.

Where To Get Fentanyl Test Strips?

Many harm reduction organizations and syringe exchange programs may offer fentanyl test strips for free to save people from fatal fentanyl overdoses. In April 2021, the CDC also allowed federally-funded programs to purchase and distribute fentanyl test kits.

The laws on fentanyl test strips vary from state to state: 32 states place fentanyl test strips under the umbrella of drug paraphernalia. Despite this, many of these states have made exceptions for testing equipment to help save lives.

The goal is to give people who struggle with addiction the power to make their own choices. Resources like fentanyl test strips can go a long way toward helping these people fully understand opportunities for recovery as well as the dangers of substance use.

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Editor – Melissa Carmona
Melissa Carmona puts years of writing and editing experience to work helping people understand substance abuse, addiction and mental health disorders. Read more
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Medically Reviewed By – Benjamin Caleb Williams, RN
Benjamin Caleb Williams is a board-certified Emergency Nurse with several years of clinical experience, including supervisory roles within the ICU and ER settings. Read more

Brown University. “Firsthand accounts indicate fentanyl tes[…]ducing overdose risk.” January 18, 2019. Accessed October 15, 2021.

Goldman, Jacqueline E.; et al. “Perspectives on rapid fentanyl test stri[…] a qualitative study.” January 8, 2019. Accessed October 15, 2021.

Harm Reduction Coalition. “Fentanyl Test Strip Pilot.” February 18, 2018. Accessed October 15, 2021.

Cook County Department of Public Health. “How to use a fentanyl test strip.” 2021. Accessed October 15, 2021.

Ahmad, F.B., Rossen, L.M., & Sutton, P. “Provisional Drug Overdose Death Counts.” Centers for Disease Control and Prevention. October 13, 2021. Accessed October 15, 2021.

Centers for Disease Control and Prevention. “Fentanyl.” February 16, 2021. Accessed October 15, 2021.

Centers for Disease Control and Prevention. “Federal Grantees May Now Use Funds to Pu[…]entanyl Test Strips.” April 7, 2021. Accessed October 15, 2021.

Legislative Analysis and Public Policy Association. “Fentanyl Test Strips.” May 2021. Accessed October 15, 2021.

Medical Disclaimer

The Recovery Village aims to improve the quality of life for people struggling with substance use or mental health disorder with fact-based content about the nature of behavioral health conditions, treatment options and their related outcomes. We publish material that is researched, cited, edited and reviewed by licensed medical professionals. The information we provide is not intended to be a substitute for professional medical advice, diagnosis or treatment. It should not be used in place of the advice of your physician or other qualified healthcare providers.