title: Higher doses of pain medication linked to psychiatric problems.
mesh_terms: D000701:Analgesics, Opioid / Q000008:administration & dosage / Q000009:adverse effects* / Q000627:therapeutic use; D004305:Dose-Response Relationship, Drug; D006801:Humans; D017116:Low Back Pain / Q000188:drug therapy*; D001523:Mental Disorders / Q000139:chemically induced*
chemical_list: D000701:Analgesics, Opioid