is there a drug test for gbl​

Yes, there are drug tests specifically designed to detect Gamma-Butyrolactone (GBL). These tests are typically used by health professionals, law enforcement, and customs officials. One such test is the NarcoCheck® ID-Test® GBL, which is used to identify GBL in liquid form2. This test is based on a wet chemical reaction, and it provides results within a few seconds by changing color when it comes into contact with GBL2.

It’s important to note that standard drug tests do not usually test for the presence of GBL in your system. If you suspect GBL use or need to confirm its presence, it’s best to use a specialized test like the NarcoCheck® ID-Test® GBL1.