نازو-سيانوكوبالامين 500مكجم/جرعة سبراي للانف 2.3 مل

description cyanocobalamin (commonly known as vitamin b12) is the most chemically complex of all the vitamins. cyanocobalaminï-s structure is based on a corrin ring which although similar to the porphyrin ring found in heme chlorophyll and cytochrome has