Cannabidiol for Fibromyalgia (The CANNFIB Trial)

Participants will start with 10 mg of cannabidiol daily and the dose will be escalated every third day until the maximum dosage of 50 mg is reached (after two weeks). The participants be on the 50 mg dosage of cannabidiol for 24 weeks.

Placebo is administered as tablets of 10 mg that are identical in appearance, taste, and smell to the Cannabidiol tablets.The participants will be on the 50 mg dosage of placebo for 24 weeks.