Cannabinoids & chronic pain; a review of randomized trials.

https://pubmed.ncbi.nlm.nih.gov/21426373/

Fifteen of the eighteen trials that met the inclusion criteria demonstrated a significant analgesic effect of cannabinoid as compared with placebo and several reported significant improvements in sleep. -© 2011 The Authors. British Journal of Clinical Pharmacology © 2011 The British Pharmacological Society.