Vital Source CBD Oil A recent study in Israel , says Lee, has shown that pure CBD requires much higher doses to achieve the same efficacy as CBD from the entire plant and that the dose had to be accurate. "If the amount of pure CBD was too low or too high, the efficacy was completely eliminated." 4. CBD can potentially interfere with other medications. "In some cases, taking a product rich in CBD could trigger adverse side effects from other medications you may be taking," says Lee. "So using CBD could result in a patient feeling worse than before." This is undoubtedly a cause for concern and a very complex issue - one more reason to expand our understanding of cannabis as medicine. The CDB Project recently published an informative article on the interaction of the CBD with other medicines (in English) if you want to learn more. 5. CBD consumed with the THCA cannabinoid is proving beneficial. While the various levels of THC work very well with the CBD, Lee has heard from people who have also experimented with THCA and CBD. THCA is the raw, non-psychoactive form of THC, which only becomes THC if heated. "For a lot of people this is making a difference, and it's exciting that this has been found," says Lee. "And again, it's just one of the many options with this plant." 6. CDB tested in the laboratory may not be as accurate as you think. Quality laboratory testing is critical to understanding the THC and CBD percentages in any product. It is also essential that the laboratory be competent enough to catch molds, fungi, microbes, pesticides and insects. Unfortunately, the label "laboratory tested" is not an automatic signal of quality and safety in the cannabis industry because many laboratories have yet to do things well. This is a question in the legal cannabis industry; imagine the quality and the guarantee with which you are dealing in the black market! I have heard horror stories from parents who are unknowingly giving oil to their epileptic children who were actually rich in THC instead of CBD, or oil full of dangerous microbes that really make patients sicker.