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(See Table 1.)
Click on icon to see table/diagram/imagePhysicochemistry: Nonproprietary name: Mecobalamin (JAN, INN).
Chemical name: Coα-[α-(5, 6-Dimethyl-1H-benzoimidazol-1-yl)]-Coβ-methylcobamide.
Molecular formula: C63H91CoN13O14P.
Molecular weight: 1344.38.
Mecobalamin occurs as dark red crystals or crystalline powder. It is sparingly soluble in water, slightly soluble in ethanol (99.5), and practically insoluble in acetonitrile. It is degraded by light.
Injection: METHYCOBAL is a clear, red liquid containing the following ingredients, and contained in brown ampoule (one-point-cut type). (See Table 2.)
Click on icon to see table/diagram/imageExcipients/Inactive Ingredients: Tablet: It also contains carnauba wax, microcrystalline cellulose, titanium oxide, stearic acid, calcium stearate, sucrose, talc, precipitated calcium carbonate, corn starch, lactose hydrate, white shellac, hydroxypropylcellulose, pullulan, povidone, macrogol 6000 and hydrated silicon dioxide as inactive ingredients.