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Cyanocobalamin is the most widely available synthetic form, is shelf-stable, and is FDA-approved for treating B12 deficiency
How long does B-12 last
Signs of Vitamin B12 Deficiency Vitamin B12 deficiency can develop gradually, and symptoms may range from mild to more noticeable
Certain medical conditions may require you to continue receiving injections every month
See Reconstitution, Daily Units, and Cycle Structure
Options for vitamin B12 treatment include: Depending on the cause of the deficiency, you may only need treatment until your vitamin B12 levels are back to normal, or you may need B12 therapy for the rest of your life
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