title: Now we know: why opioids don't work against fibromyalgia pain. Recent study reveals reduced opioid receptor availability in the brain; but a new FDA-approved drug brings relief.
mesh_terms: D000701:Analgesics, Opioid / Q000627:therapeutic use*; D003863:Depression; D005081:Exercise Therapy; D005356:Fibromyalgia / Q000150:complications / Q000188:drug therapy* / Q000503:physiopathology; D006801:Humans; D010146:Pain / Q000188:drug therapy* / Q000209:etiology; D017450:Receptors, Opioid, mu
chemical_list: D000701:Analgesics, Opioid; D017450:Receptors, Opioid, mu