title: Analysis of acetaminophen, phenylephrine hydrochloride, diphenhydramine hydrochloride, and ascorbic acid in a capsule preparation.
mesh_terms: D000082:Acetaminophen / Q000032:analysis*; D000464:Alginates; D000470:Alkaloids / Q000302:isolation & purification; D001205:Ascorbic Acid / Q000032:analysis*; D002214:Capsules / Q000032:analysis; D002852:Chromatography, Ion Exchange; D004155:Diphenhydramine / Q000032:analysis*; D006863:Hydrogen-Ion Concentration; D010656:Phenylephrine / Q000032:analysis*; D012996:Solutions; D013056:Spectrophotometry, Ultraviolet; D013213:Starch
chemical_list: D000464:Alginates; D000470:Alkaloids; D002214:Capsules; D012996:Solutions; D010656:Phenylephrine; D000082:Acetaminophen; D004155:Diphenhydramine; D013213:Starch; D001205:Ascorbic Acid