Small test strips that can detect the presence of fentanyl in a drug sample.
In the context of addiction treatment:
Used in harm reduction to help people who are still using reduce overdose risk.
What to know:
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A positive result means fentanyl is present; a negative result doesn’t guarantee safety (test limits, other analogs).
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Some regions treat strips as harm-reduction tools; others may have legal restrictions.
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Many programs distribute fentanyl test strips along with naloxone.
Example:
Before using, a person tests a small amount of powder with a fentanyl test strip and finds it positive, so they use less, don’t use alone, and keep naloxone nearby.