TWO DIFFERENT CHROMATOGRAPHIC METHODS FOR SIMULTANEOUS DETERMINATION OF COMMON COLD DRUGS AMBROXOL HYDROCHLORIDE, PSEUDOEPHEDRINE HYDROCHLORIDE, LEVOCETERIZINE DIHYDROCHLORIDE AND DESLORATADINE, IN PURE FORMS, AND IN PHARMACEUTICAL DOSAGE FORMS.
Al-Azhar Journal of Pharmaceutical Sciences/Al-Azhar Journal of Pharmaceutical Sciences