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When someone has low hemoglobin, they often have an iron deficiency (i.e., anemia)
This rapid delivery amplifies their effectiveness, providing immediate support
For example, you shouldn't use this medication if you're allergic to cyanocobalamin or cobalt, or if you have Lebers disease, which is an inherited form of vision loss
"Anaerobic synthesis of vitamin B12: characterization of the early steps in the pathway" (PDF)
Each lot is characterized before release so your assays start from a known baseline
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