**Conflict of interest**

KMV has received payment for consulting from Abide Pharmaceuticals and Fundacion Canna and support for research from GW and Almirall. She is carrying out studies in cooperation with Abide Pharmaceuticals, GW and Almirall. She is a member of the Scientific Advisory Board of Therapix and a second chairwoman of the International Association for Cannabinoid Medicine (IACM).
