title: Individual tablet analysis for codeine and caffeine in codeine-aspirin-phenacetin-caffeine tablets.
mesh_terms: D001241:Aspirin / Q000032:analysis; D002110:Caffeine / Q000032:analysis*; D003061:Codeine / Q000032:analysis*; D004338:Drug Combinations / Q000032:analysis; D008722:Methods; D010615:Phenacetin / Q000032:analysis; D013056:Spectrophotometry, Ultraviolet; D013607:Tablets / Q000032:analysis
chemical_list: D004338:Drug Combinations; D013607:Tablets; D002110:Caffeine; D010615:Phenacetin; D001241:Aspirin; D003061:Codeine