title: A clinical comparison of the effects of oral and intramuscular administration of analgesics: pentazocine and phenazocine.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002986:Clinical Trials as Topic; D005260:Female; D006801:Humans; D007273:Injections, Intramuscular; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000150:complications*; D010146:Pain / Q000188:drug therapy*; D010423:Pentazocine / Q000008:administration & dosage* / Q000009:adverse effects; D010620:Phenazocine / Q000008:administration & dosage* / Q000009:adverse effects
chemical_list: D010620:Phenazocine; D010423:Pentazocine