How to Test Fentanyl

Fentanyl is a potent opioid, 100 times more potent than morphine. Because of the potential for overdose, fentanyl is considered a highly dangerous cut.

Testing for the presence of fentanyl and fentanyl analogues such as carfentanil requires the use of test strips, as offered here:

Fentanyl Test Kits »

You’ll get an indication of whether or not fentanyl is present. Testing the entire sample is highly recommended, because fentanyl is rarely evenly distributed.

Fentanyl Carfentanil Heroin Lethal Dose
Vials showing the lethal dosage of each drug. Carfentanil is much more potent. The dosages shown are enough to kill an average-sized adult male.


Fentanyl test kit results