How to test FENTANYL?

How to test fentanyl: if you intend to use an opioid, first you need to check it using a test kit to rule out presence of dangerous adulterants such as fentanyl. Fentanyl can be even 100 times more potent than morphine, and therefore is easy to accidentaly overdose on. Fentanyl can be mixed in any kind of sample and can’t be identified by appearance. To detect fentanyl or analogs it’s recommended to use fentanyl test strips.