COATING EFFICIENCY IN PREVENTING PHOTOLYTIC DEGRADATION OF TWO RANDOMLY SELECTED BRANDS OF METOPROLOL TARTRATE Journal title: International Journal of Pharmaceutical Sciences and Drug Research Authors: Md. Anisur Rahman, Mohammed Faisal Bin Karim, Nandi Tirtha, Kazi Imran Adib, Roksana Parvin, Md. Sha... Subject(s):