The present invention relates to a cannabidiol (CBD) type cannabinoid compound for use as a medicament. The CBD-type cannabinoid, cannabidiol-C4 (CBD-C4), is a naturally occurring cannabinoid that can be found in minor quantities in the cannabis plant. Furthermore, the5 cannabinoid can be produced by synthetic means. Disclosed herein are data which demonstrate the efficacy of CBD-C4 in models of disease. In addition, a method for the production of CBD-C4 is described.