A role for cannabidiol in psychiatry? Keep calm and follow the drug development rules Gabriella Gobbi THE WORLD JOURNAL OF BIOLOGICAL PSYCHIATRY, 2019, VOL. 20, NO. 2, 98–100 Commentary https://doi.org/10.1080/15622975.2019.1584680   Along with tetrahydrocannabinol (THC), cannabidiol (CBD) is one of the main pharmacological components of Cannabis sativa and indica. Unlike THC, which binds CB1 receptors, CBD does not cause any dependence, and acts mostly via 5-HT1A and TPRV1 receptors (De Gregorio et al. 2018). Khoury et al. (2019) recently published a systematic review on the role of cannabidiol in psychiatry in the World Journal of Biological Psychiatry. After analysing 609 articles, they found six case reports, [...]