The agency revealed its intentions to review the drug in a letter to Sen. Elizabeth Warren, D-M.A., and seven of her colleagues in the U.S. Senate.
Marijuana, like heroin and LSD, is currently a Schedule I controlled substance, which means it cannot be used in research without an extensive application process and review by several institutional boards. Schedule II controlled substances include opium and methamphetamine.
“If it was rescheduled there would be opportunities for research by universities for how it could be used as treatment for various ailments,” said Jon Kennedy, board of directors spokesperson for North Carolina NORML, a group that works to reform marijuana laws and policies.
Kennedy said most cannabis research has been stifled because of numerous bureaucratic systems in place for research with Schedule I substances.
Despite these restrictions, medical marijuana is currently legal in 23 states and Washington D.C., and recreational marijuana is legal in four states.
The letter said the FDA has concluded a review of the safety of medical marijuana.
Kennedy said NORML thinks marijuana should be “descheduled” rather than rescheduled.
“We believe it should just be treated as any other natural growing plant,” he said. “The toxicity is very low compared to a lot of pharmaceutical drugs that are used on a regular basis.”