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CYANOCOBALAMIN (VITAMIN B12) INJECTION

CYANOCOBALAMIN (VITAMIN B12) INJECTION

General Information: Cyanocobalamin is used to treat pernicious anemia and vitamin B12 deficiency, as well as to determine vitamin B12 absorption in the Schilling test. Vitamin B12 is an essential vitamin found in the foods such as meat, eggs, and dairy products. Deficiency in healthy individuals is rare; the elderly, strict vegetarians (i.e., vegan), and patients with malabsorption problems are more likely to become deficient. If vitamin B12 deficiency is not treated with a vitamin B12 supplement, then anemia, intestinal problems, and irreversible nerve damage may occur. Oral therapy is not always effective, as some persons lack intrinsic factor, an endogenous substance produced by the stomach and necessary for oral B12 absorption. Other patients may not be able to absorb oral vitamin B12 due to surgical removal or dysfunction of the intestines in the area where absorption of vitamin B12 occurs. Thus, parenteral or nasal therapy may be needed; however, intranasal therapy should only be instituted for maintenance treatment after control of the condition has been obtained by the parenteral route. Vitamin B12 is used to treat pernicious anemia and vitamin B12 deficiency, as well as to determine vitamin B12 absorption in the Schilling test. Cyanocobalamin was approved by the FDA in 1949.