The effectiveness of D-propoxyphene hydrochloride and codeine phosphate as determined by two methods of clinical testing for relief of chronic pain.
D000700:Analgesics / Q000494:pharmacology*; D059350:Chronic Pain; D003061:Codeine / Q000494:pharmacology*; D011431:Dextropropoxyphene; D006801:Humans
D000700:Analgesics; D011431:Dextropropoxyphene; D003061:Codeine
ANALGESICS/effects; CODEINE/effects