Clinical Studies and Case Reports

On this site you will find clinical studies with cannabis or single cannabinoids in different diseases and case reports on the use of cannabis by patients.
You may search for diseases (indications), authors, medication, study design (controlled study, open trial, case report etc.) and other criteria.

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TitleThe Impact of Cannabis Access Laws on Opioid Prescribing
Author(s)McMichael, Benjamin J. and Van Horn, Ray and Viscusi, W. Kip
Journal, Volume, IssueU of Alabama Legal Studies Research Paper No. 3266629.
Major outcome(s)Cannabis laws in the USA are associated with reduced opioid prescriptions

While recent research has shown that cannabis access laws can reduce the use of prescription opioids, the effect of these laws on opioid use is not well understood for all dimensions of use and for the general United States population. Analyzing a dataset of over 1.3 billion individual opioid prescriptions between 2011 and 2017, which were aggregated to the individual provider-year level, we find that recreational and medical cannabis access laws reduce the number of morphine milligram equivalents prescribed each year by 6.9 and 6.1 percent, respectively. These laws also reduce the total days supply of opioids prescribed, the total number of patients receiving opioids, and the probability a provider prescribes any opioids net of any offsetting effects. Additionally, we find consistent evidence that cannabis access laws have different effects across types of providers and physician specialties.

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Type of publicationOther
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