Cannabidiol
As result, in 1906, The Pure Food and Drug Act was passed by the United States Congress. It required that certain special drugs, including cannabis extracts, be properly and correctly labeled with contents. Prior to this many drugs were marketed as 'patented' medicines with 'secret ingredients'. The new regulations, however, did nothing to stem criticism about the availability of narcotics in particular and around 1910 there was a new round of legislation aimed to strengthen requirements for their sale and remove 'loopholes' in poison laws.