title: Clinical evaluation of an oral analgesic, Z.424, in patients with chronic pain.
mesh_terms: D000328:Adult; D000368:Aged; D000605:Amino Alcohols / Q000009:adverse effects / Q000627:therapeutic use*; D000700:Analgesics / Q000009:adverse effects / Q000627:therapeutic use*; D001794:Blood Pressure / Q000187:drug effects; D002986:Clinical Trials as Topic; D003061:Codeine / Q000627:therapeutic use; D004361:Drug Tolerance; D005260:Female; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D008297:Male; D008875:Middle Aged; D010146:Pain / Q000188:drug therapy*; D010919:Placebos; D012119:Respiration / Q000187:drug effects; D013997:Time Factors
chemical_list: D000605:Amino Alcohols; D000700:Analgesics; D010919:Placebos; D003061:Codeine