A Simple How-to for Testing Fentanyl in Various Substances Using Fentanyl Test Strips.

There is a lot of information on how to test heroin for fentanyl but not much out there regarding other substances. Current data shows that fentanyl is showing up more often in substances other than heroin.

Fentanyl test strips showing example of positive and negative results
  1. Dissolve a small sample of the substance in water. These test strips are made to be tested with a very small amount of the substance.
  2. Dip the test strip into the water mixture for at least 15 seconds.
  3. Place the strip on a flat surface for 5 minutes.
  • If ONE line appears, is it POSITIVE for fentanyl.
  • If TWO lines appear, it is NEGATIVE for fentanyl.
  • If NO lines appear, the test needs to be administered again.

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