“Legal access to cannabis may reduce the use of multiple classes of dangerous prescription medications in certain patient populations.”

http://en.ahau.findplus.cn/?h=articles&db=edselp&an=S1525861017304292

“Medical Cannabis and Reduced Prescription Use. 71% of medical cannabis program enrollees either ceased or reduced their use of scheduled prescriptions within 6 months of enrolling. The findings of this study indicate that once a patient enrolls in the medical cannabis program there is an increased likelihood that the patient will decrease their usage of scheduled medications. These medications include many drugs of abuse such as opiates, benzodiazepines, and sleeping medications.” http://markets.businessinsider.com/news/stocks/Medical-Cannabis-and-Reduced-Prescription-Use-1001600526

“Medical Cannabis and Reduced Prescription Use. Breakthrough Study Indicates Strong Association Between Medical Cannabis and Reduced Prescription Use.”  http://www.prnewswire.com/news-releases/medical-cannabis-and-reduced-prescription-use-300506774.html

“Effects of Legal Access to Cannabis on Scheduled II-V Drug Prescriptions. Legal access to cannabis may reduce the use of multiple classes of dangerous prescription medications in certain patient populations.”  https://www.ncbi.nlm.nih.gov/pubmed/28899660

“Legal access to cannabis may reduce the use of multiple classes of dangerous prescription medications in certain patient populations.” http://www.jamda.com/article/S1525-8610(17)30429-2/fulltext