Participants
DSM-5, psychotic disorder, allergies
DISORDER, ALLERGIES
Participants were recruited through advertisements on websites and forums, as well as flyers in the local community. Inclusion criteria were as follows: aged 16–60 years, meeting DSM-5 criteria for a cannabis use disorder with at least moderate severity, expressing a desire to stop using cannabis and intending to do so in the next month based on an adapted Motivation to Stop scale [Exclusion criteria were as follows: current breastfeeding or pregnancy, allergies to CBD, microcrystalline cellulose or gelatin, prescribed psychotropic drug use during screening or treatment, use of other illicit drugs more than twice a month during screening, evidence of inaccurate self-reported drug use due to a positive urine test for a drug not reported during screening, current or prior self-reported diagnosis of a psychotic disorder, any physical health problem deemed clinically significant, and not speaking English.