Methycobal 500mg is a vitamin B12 supplement containing mecobalamin, manufactured by Eisai Co. Ltd in Japan. Each tablet contains 500 micrograms of mecobalamin, used to treat vitamin B12 deficiency, peripheral neuropathy, and megaloblastic anemia. This medication comes in a box containing 30 tablets. The active ingredient mecobalamin is a form of vitamin B12 that plays an essential role in red blood cell formation, nerve function, and DNA synthesis. The typical adult dosage is 1 tablet three times daily or as prescribed by a healthcare provider. The medication should be stored in a cool, dry place away from direct sunlight and kept out of reach of children. Consult a healthcare provider before use if pregnant, nursing, or taking other medications.