A study conducted by the Hebrew University, Institute for Drug Research found plant-derived CBD is more effective in treating pain and inflammation than their purified CBD substitutes. Researchers looked at the anti-inflammatory and anti-nociceptive properties of CBD, and reported "extracts derived from a CBD-dominant strain of cannabis provided a wider therapeutic window than did the administration of a purified form of CBD provided by a German pharmaceutical company." They deemed the plant-derived extracts "superior" to their synthetic purified CBD counterparts in the treatment of some inflammatory diseases.
These findings are significant because in many legalization efforts, states are implementing CBD-only medical marijuana programs. Research like this reveals that excluding certain plant-derived properties or attempting to replace plant material with synthetic substitutes is less effective in providing the necessary therapeutic benefits to patients who need it.