Bodybuilders historically used GHB as a dietary supplement as it could trigger the release of growth hormones. Presently it is prescribed for patients who are excessively drowsy during the daytime due to narcolepsy. GHB is also used in the treatment of cataplexy, alcoholism and as a general anesthetic in medical settings. It’s most concerning use is as a date rape drug.
https://recoverypartnernetwork.com/drug/illicit/ghb-addiction