Trystereo is a volunteer-run harm reduction collective founded in 2011.We are a free, mobile public health resource for people who use drugs in southeastern Louisiana.


Fentanyl is a synthetic opioid that can be up to 100 times as powerful as morphine and up to 50 times as powerful as heroin. Fentanyl testing strips and related education allows people to better understand their risk of an overdose.

Test the presence or absence of fentanyl and many fentanyl analogs (very closely related drugs) using these urine drug tests off-label.

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  1.  Add ¼ inch sterile water to drug residue (in bag or cooker)

  2. Holding the blue end of the strip, dip end of test strip in the water for 15 seconds

  3. Set aside the strip and check it after 5 minutes

  4. *ONE LINE = FENTANYL!* (yes, one line is positive for fentanyl)


  6. No lines = Invalid Test, must Re-Do 

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