What are fentanyl test strips?
A fentanyl test strip is a small piece of paper that is sensitive to certain chemicals. The test strip reacts if a drug contains fentanyl — but it doesn't show how much is there.
How to use fentanyl test strips
- Mix the drugs with water. For pills, crush them first.
- Place the wavy end of the test strip in the water and wait 15 seconds.
- Set the test strip on a flat surface and wait for results to appear. It typically takes 2 to 5 minutes.
For detailed instructions, see NYC Health's guide to using fentanyl test strips.
Watch the 'How to Use Fentanyl Test Strips' video from Steve Rummler HOPE Network to see test strips in action.
Where to get fentanyl test strips
Some community organizations offer test strips for free. They are also available online. First, check if fentanyl test strips are legal in your state.
Test Strip Tips
Fentanyl clumps together. (Source) It may not be mixed evenly in a drug. Even if you test half of a pill, the other half could still contain fentanyl. This is why it’s important to dissolve the pill in water first.
Fake pills and powdered drugs aren’t regulated. Testing one pill doesn't mean other pills from the same batch are safe.
A negative result does not necessarily mean that fentanyl is not present or that there is no risk. Test strips are not guaranteed to detect all forms of fentanyl.
When used properly, fentanyl test strips are 96-100% accurate in detecting most fentanyl analogs. (Source)
A test strip can only be used once.
Never take someone else’s word for it that a drug has been tested.