title: Analgesic effect of morphine tablets.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D007267:Injections; D008875:Middle Aged; D009020:Morphine / Q000008:administration & dosage*; D010146:Pain / Q000188:drug therapy*; D011897:Random Allocation; D013607:Tablets
chemical_list: D013607:Tablets; D009020:Morphine