The legalization of marijuana (cannabis) for medical use in 25 states and the District of Columbia (as of the writing of this article) has fueled a growing acceptance of marijuana as a treatment option for a number of conditions. Despite criticism of the programs (whether for prescribed medical conditions or recreational), there is real science behind the use of cannabinoids for therapeutic effects by binding to specific receptors on the surface of cells. The commercial availability of medical cannabis has moved patient usage quickly, and many unanswered questions remain as to how to best utilize these medical marijuana product offerings. Click here to read Part 1 of the series, in which Dr. Rosemary Mazanet describes the use of medical cannabis today by neuropathic pain patients. Click here to read Part 2 of the series.