Rapid Response Instructions
The instructions included below are specifically made for Rapid Response (BTNX) branded fentanyl test strips.
Fentanyl isn’t mixed evenly in street drugs — one corner of a baggie or pill might be safe, while another could carry a deadly dose. This is why it is best to test as much as possible.
To Prepare you sample:
crush any chunks into a fine, uniform powder
Next, Shake or stir the baggie/container well to evenly distribute any fentanyl
This improves your chance of detecting hidden fentanyl and makes your test results more reliable.
⚠️ Important Safety Tips
Carry Narcan
Never use alone
Start low and go slow
Interpreting the results
One red line on top after waiting five minutes is a POSITIVE result for the presence of fentanyl, meaning the sample you tested contains fentanyl. Two red lines is a NEGATIVE result, meaning the sample you tested does NOT contain fentanyl.
The lower red line may be significantly lighter than the upper red line. If you can see it at all after waiting three minutes, no matter how faint, it is still a negative result.
No red lines (or one red line on the bottom) means the test is invalid. This usually happens whenthe liquid did not travel far enough up the test strip.
DISCLAIMERS:
No fentanyl test strip on the market can detect every fentanyl analog.
At the moment, there are no strips that can detect non-fentanyl synthetic opioids.
Remember, no test is 100% accurate and your drugs may still contain fentanyl or a similar synthetic opioid. For this reason, you should always have naloxone on hand.
Users of fentanyl test strips distributed by the Test Strips Save Lives Foundation accept all responsibility for injury or death that could occur after taking drugs.