As of January 30, 2026, Nembutal—known chemically as pentobarbital sodium—remains one of the most tightly controlled and controversial pharmaceutical agents worldwide. This ultra-short-acting barbiturate exerts powerful central nervous system depression by enhancing GABA-A receptor activity, producing sedation, hypnosis, anesthesia, coma, and ultimately respiratory arrest at high doses. Originally developed in the 1930s as a sedative […]