CBD has proven neuroprotective effects and its anti-cancer properties are being investigated at several academic research centers in the United States and elsewhere. A 2010 brain cancer study by California scientists found that CBD “enhances the inhibitory effects of THC on human glioblastoma cell proliferation and survival.” This means that CBD makes THC even more potent as an anticancer substance. Also in 2010, German researchers reported that CBD stimulates neurogenesis, the growth of new brain cells, in adult mammals.
Figuring out how much CBD oil to take can feel like trying to navigate through a complicated maze. The sheer volume of CBD brands on the market can create confusion for consumers, and when you take a closer look, it’s not difficult to understand why. Not only do vendors use different source materials (CBD-rich cannabis vs. industrial hemp, different strains, etc.), but they also implement different extraction techniques .
I have/had ovarian/primary peritoneal cancer. I used thc/cbd oil pills I self made from the start. I am supposedly their “poster child”. I went thru with chemo and surgery. Oh that horror! But when I tried to tell two seperate doctors, the surgeon was all about it, and my oncologist threw a fit and said it was an anecdote. There are more than 100 studies at the NIH govt website.
^ Nadulski T, Pragst F, Weinberg G, Roser P, Schnelle M, Fronk EM, Stadelmann AM (December 2005). "Randomized, double-blind, placebo-controlled study about the effects of cannabidiol (CBD) on the pharmacokinetics of Delta9-tetrahydrocannabinol (THC) after oral application of THC verses standardized cannabis extract". Ther Drug Monit. 27 (6): 799–810. doi:10.1097/01.ftd.0000177223.19294.5c. PMID 16306858.
CBD does not appear to have any psychotropic ("high") effects such as those caused by ∆9-THC in marijuana, but may have anti-anxiety and anti-psychotic effects. As the legal landscape and understanding about the differences in medical cannabinoids unfolds, experts are working to distinguish "medical marijuana" (with varying degrees of psychotropic effects and deficits in executive function) – from "medical CBD therapies” which would commonly present as having a reduced or non-psychoactive side-effect profile.
First, a little background. Industrial hemp was legal in the United States until Congress passed the Marihuana Tax Act in 1937. ("Some of our early presidents grew hemp," notes Sarah Lee Gossett Parrish, a cannabis industry attorney based in Oklahoma.) Nearly 80 years later, the 2014 Farm Bill took the position that states can regulate the production of hemp and, as a result, CBD. Then last year, President Trump signed a new Farm Bill that made it federally legal to grow hemp.