Cannabis has been shown to be non-toxic, and has a robust safety profile
Cannabis often works when other medications fail, so not only is it generally safer than prescription drugs, cannabis preparations also tend to provide greater efficacy
Children with epilepsy can often find rapid relief using cannabis oil; about 25 percent experience a significant reduction in seizures within days or weeks
"US Government Holds Patent on Cannabis as a Neuroprotectant
Interestingly, the US government, through the Department of Health and Human Services (HHS), holds a patent on cannabis, specifically on cannabidiol (CBD) as a neuroprotectant and an antioxidant. This patent was filed over a decade ago, and was approved by the US Patent and Trademark Office (USPTO) in 2003. The patent was based on studies done with the support of the National Institutes of Health (NIH).
"It certainly is a paradox. Through the Drug Enforcement Administration (DEA), the US federal government holds the stance that marijuana has no medical value and is highly dangerous; whereas we have in fact scientific evidence that it is useful as a medicine, and that far from being dangerous, it's actually quite non-toxic and supportive—certainly in comparison to other medications.
I think we have to ask why we have this split. It really seems like a policy, especially in certain areas of the federal government that would encompass the drug war and drug laws. That type of policy certainly is not consistent with our medical knowledge and scientific knowledge."