Through his first six years in office, Franklin Roosevelt spent much of his time trying to bring the United States out of the Great Depression.
Drug Information. Benzodiazepines (BZO) are medications that are frequently prescribed for the symptomatic treatment of anxiety and sleep disorders. They produce their effects via specific receptors involving a neurochemical called gamma aminobutyric acid (GABA).
Invention and research [edit]. BZ was invented by the Swiss pharmaceutical company Hoffman-LaRoche in 1951. The company was investigating anti-spasmodic agents, similar to tropine, for treating gastrointestinal ailments when the chemical was discovered.