The Mecobalamin in Methycobal enhances the synthesis of nucleic acids in the bone marrow, contributing to the maturation and division of erythroblasts, thereby increasing the number of red blood cells. Treatment with Methycobal 500mg results in a rapid recovery of indicators such as red blood cell count, Hemoglobin, and Hematocrit in patients with anemia due to vitamin B12 deficiency.