Cobalamine is a synthetic compound of vitamin B12 used to treat vitamin deficiencies. Chemically, cyanocobalamin is classified as a "corrinoid," representing a crystallizable cobalt complex. The name "cyanocobalamin" is derived from including a cyanide group within the molecule. Cyanocobalamin is approved by the United States Food and Drug Administration (FDA) for pernicious anemia, malabsorption, atrophic gastritis, gastrectomy, Helicobacter pylori infection, and other conditions.
Cyanocobalamin injection is used to treat and prevent a lack of vitamin B12 that may be caused by any of the following: pernicious anemia (lack of a natural substance needed to absorb vitamin B12 from the intestine); certain diseases, infections, or medications that decrease the amount of vitamin B12 absorbed from food; or a vegan diet (strict vegetarian diet that does not allow any animal products, including dairy products and eggs). Cyanocobalamin injection is in a class of medications called vitamins. Because it is injected straight into the bloodstream, it can be used to supply vitamin B12 to people who cannot absorb this vitamin through the intestine.
Shortness of breath (even with mild exertion), swelling, rapid weight gain. Pulmonary edema, congestive heart failure, peripheral vascular thrombosis. Hypokalemia--leg cramps, irregular heartbeats, tingling/numbness, muscle weakness, or limp feeling.
