TY - GEN AU - Safinaz Abd El hady Elnaggar AU - Mohamed elsamaligy , AU - Nagia Afify , AU - Samia Shalaby , TI - A Contribution to stability studies of certain vitamins of natural origin in its solid dosage forms / PY - 2005/// CY - Cairo : PB - Safinaz Abd El hady Elnaggar , KW - Solid dosage forms KW - Vitamins N1 - Thesis (M.Sc.) - Cairo University - Faculty Of Pharmacy - Department Of Pharmaceutics; Issued also as CD N2 - 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 UR - http://172.23.153.220/th.pdf ER -