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How Fast Does a Vitamin B12 Shot Work
Vitamin B12 Injection Generic name: cyanocobalamin (injection) [ sye-AN-oh-koe-BAL-a-min ] Brand names: Vitamin B12, Vitamin B-12 Drug class: Vitamins What is Vitamin B12
Severity of deficiency: if your levels were very low, it may take several doses to fully restore your tissues, or you may feel a dramatic early difference because your body was so depleted
