title: Stability assays of aged pharmaceutical formulas for thiamine and pyridoxine by high performance thin-layer chromatography and derivative ultraviolet spectrometry.
mesh_terms: D002855:Chromatography, Thin Layer; D004338:Drug Combinations; D004355:Drug Stability; D011736:Pyridoxine / Q000032:analysis*; D013056:Spectrophotometry, Ultraviolet; D013607:Tablets / Q000032:analysis; D013831:Thiamine / Q000032:analysis*
chemical_list: D004338:Drug Combinations; D013607:Tablets; D011736:Pyridoxine; D013831:Thiamine