1930s – American Pharmaceutical Firms Sell Extracts of Marijuana as Medicines

“As demand for marijuana-based medications accelerated, pharmaceutical firms attempted to produce consistently potent and reliable drugs from hemp. By the 1930s at least two American companies – Parke-Davis and Eli Lily – were selling standardized extracts of marijuana for use as an analgesic, an antispasmodic and sedative. Another manufacturer, Grimault & Company, marketed marijuana cigarettes as a remedy for asthma.”