The American College of Physicians (ACP) wrote in its Feb. 15, 2008 position paper "Supporting Research into the Therapeutic Role of Marijuana"

“ACP urges review of marijuana’s status as a schedule I controlled substance and its reclassification into a more appropriate schedule, given the scientific evidence regarding marijuana’s safety and efficacy in some clinical conditions…Given marijuana’s proven efficacy at treating certain symptoms and its relatively low toxicity, reclassification would reduce barriers to research and increase availability of cannabinoid drugs to patients who have failed to respond to other treatments.”

Feb. 18, 2008