The Verifique Fentanyl+ Test Kit is a simple, single-use test kit that is designed for fentanyl detection. The test can be used to detect fentanyl in any kind of sample, including pills, powders, vape pens, surfaces, etc. The test is designed to capture a broad spectrum of fentanyl analogues and will also produce a positive result for any other cyclic amine narcotic class, including amphetamines, synthetic opioids, and others.

The test consists of two separate pieces, a test pen and a test card, that come sealed in air- and water-proof packaging. The test pen is used to collect your sample, and the test card is used to conduct your test. The entire testing process takes less than 20 seconds to produce a result.

The solvent and reagents used in Verifique’s products are non-toxic and non-hazardous. Although you do not risk exposure to any chemicals from the Verifique test, users may opt to use gloves to protect themselves from the sample they are testing.

Verifique’s test is designed to detect a broad array of fentanyl analogues and other narcotics of abuse. The test will presumptively check if these narcotics are present in the portion of the sample that is tested. This means that a positive test result indicates that it is presumptively likely that at least one of the target compounds is present in the sample, in a detectable quantity.

This test cannot be used to discern which narcotic is present in the sample, or how many different narcotics may be present. The test will not show how much of the test target is present, how it is distributed across the sample, or how strong the sample is.

Presumptive tests are not designed to give certain results and cannot replace a full lab analysis of your sample. A presumptive test cannot be used to assert that substances are safe and cannot be used to assert that substances are illegal.

If you get a:

  • Positive Result – It can be presumed that fentanyl or another dangerous narcotic is present in a detectable volume in the test sample.
  • Negative Result – Fentanyl or another dangerous narcotic cannot be identified in a detectable volume, so it cannot be presumed to be present. In the case of a negative, it is possible that the test target may not be present, may be present in an undetectable volume, or that it may be present and may be undetectable for another reason (a false negative result).

What the Test Detects

Verifique’s Fentanyl+ Test is a broad spectrum test, meaning a number of different narcotics can trigger the same positive result. Some examples of the test compounds that will be detected are categorized below. The test is likely to capture the below classes of narcotics, and other, similar compounds that may not be listed.

Fentanyl Class Narcotics

  • Fentanyl Hydrochloride
  • Methoxyacetyl Fentanyl HCl
  • Fentanyl Citrate
  • Furanyl Fentanyl HCl
  • 2-fluoro-ortho Fentanyl
  • Carfentanil HCl
  • Lofentanil HCl
  • Remifentanil Oxalate
  • Sufentanil Oxalate

Synthetic Opioid Class Narcotics

  • Heroin
  • Meperidine

Amphetamine Class Narcotics

  • Methamphetamine HCl
  • MDMA HCl
  • D-Amphetamine HCl
  • Ephedrine
  • Pseudoephedrine

Other Cyclic Amine Class Narcotics

  • Phencyclidine (PCP)
  • Methylphenidate (Ritalin)
  • Chlorpromazine HCl (Thorazine)


The Verifique Fentanyl+ Test Kit consists of three pieces, delivered in a single, sealed sachet.

  • 1 x reagent-treated dry paper VF Test Card
  • 1 x pre-treated VF Test Pen
  • 1 x VF Results Record Card

Test Card

The Verifique Fentanyl+ Test Card is a 3.5” x 2” paper card that consists of three separate sections. The top right corner of the test card is printed with the name of the test.

  1. Instructions: The five panels at the top of the card have instructions for conducting the test.
  2. Test Zone: This is the site of the reagent that will be used in conducting the test.
  3. Color Reference Panel: This color panel provides a quick reference guide for the color patterns that are indicative of positive and negative results. You are looking for the development of a distinct dark red color as an indication of a positive result.

Test Pen

The Verifique Fentanyl+ Test Pen is a plastic pen case that is used to hold the cotton tip used in sample collection. The cotton tip is pre-wetted with a natural solvent to help collect your sample.

To prepare the Pen for testing, simply remove the cap. The tip of the Pen should be damp.

Record Card

The Record Card can be used to take notes about the results of your test upon completion. Fill out the fields on the card as necessary for your personal records. You may also consider taking notes in the blank space at the bottom of the card, and taking photographic record of the results of your test.