They look for common biochemical metabolites that are produced in the body by the break-down of the drugs.
Haha you sound like my wife. Medical degree much? If it metabolizes in your liver it will show in blood, skin, and hair. The other stuff may make your brain hemorrhage and require deeper investigation. Don't try it in this industry bro.
Haha you sound like my wife. Medical degree much? If it metabolizes in your liver it will show in blood, skin, and hair. The other stuff may make your brain hemorrhage and require deeper investigation. Don't try it in this industry bro.