Effect of adding medical cannabis to analgesic treatment in patients with low back pain related to fibromyalgia: an observational cross-over single centre study

Low back pain (LBP) occurs in many patients with fibromyalgia (FM). The current study aimed to assess the possible pain and function amelioration associated with medical cannabis therapy (MCT) in this setting. 31 patients were involved in an observational cross-over study. The patients were screened, treated with 3 months of standardised analgesic therapy (SAT). Following 3 months of this therapy, the patients could opt for MCT and were treated for a minimum of 6 months. This observational cross-over study demonstrates an advantage of MCT in FM patients with LBP as compared with SAT.