In experiments with mice a CBD rich cannabis extract was superior in reducing inflammation than pure CBD. This is the result of research by scientists of Hebrew University of Jerusalem, Israel. They used a cannabis strain called Avidekel to prepare extracts, which were given either orally or injected into the belly. CBD (cannabidiol) is a non-psychotropic compound of the cannabis plant.
The Avidekel extract reduced paw swelling induced by a chemical (zymosan) and pain in mice, and prevented the production of a pro-inflammatory substance (TNF-Alpha). Authors wrote that “it is likely that other components in the extract synergize with CBD to achieve the desired anti-inflammatory action.” Perhaps small amounts of THC and anti-inflammatory terpenes play a role.