A Safinaz Abd El hady Elnaggar creator Mohamed elsamaligy supervisor Nagia Afify Supervisor Samia Shalaby Supervisor ua Cairo Safinaz Abd El hady Elnaggar 2005 eng Eng 174p : charts ; 30cm Chemical stability is considered one of the most influential factors that affect the therapeutic efficacy of any product It was noticed recently , launch of many new pharmaceutical vitamin products of the so - callednaturalvitamins It was claimed that the natural vitamins are more effective than the chemical synthetic ones Safinaz Abd El hady Elnaggar ; Supervised Samia Shalaby , Nagia Afify , Mohamed elsamaligy Thesis (M.Sc.) - Cairo University - Faculty Of Pharmacy - Department Of Pharmaceutics Issued also as CD Solid dosage forms Vitamins http://172.23.153.220/th.pdf http://172.23.153.220/th.pdf EG-GICUC 061220 20250223030301.0 eng