Question: What are the chemical analogues that are often substituted on the street for the substance of abuse, GHB?
Answer: The cited reference notes “Analogues that are often substituted for GHB include GBL (gamma butyrolactone) and 1,4 BD (also called
just “BD”), which is 1,4-butanediol. These analogues are available legally as industrial solvents used to produce polyurethane, pesticides, elastic fibers, pharmaceuticals, coatings on metal or plastic, and other products. They are also sold illicitly as supplements for bodybuilding, fat loss, reversal of baldness, improved eyesight, and to combat aging, depression, drug addiction, and insomnia. (https://www.dea.gov/pr/multimedia-library/publications/drug_of_abuse.pdf#page=46; accessed August 2017)