The federal government is expected to make an announcement Thursday that it has rejected petitions to loosen the classification of marijuana as a dangerous drug with no medical use, CBS News reported.
But a U.S. government source told CBS News that the government would allow more research into marijuana, senior investigative producer Pat Milton reported.
A nurse practitioner and two former state governors filed petitions asking federal agencies to have marijuana reclassified as a drug with acceptable medical uses, CBS New reported.
Marijuana has long been classified as a Schedule 1 drug with no currently accepted medical use and high potential for abuse, which is the same classification for such drugs as heroin.