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While these typically subside within a few days, you should always notify your doctor just in case, Wirtz says

[2] Hydroxocobalamin is administered via intramuscular or intravenous injection to treat and prevent vitamin B deficiency, particularly in conditions like pernicious anemia where oral B absorption is impaired

A vitamin B12 deficiency affects energy levels and immune health and may cause neurological problems like numbness and tingling in your hands and feet

the RDA is 2.4 mcg

Beyond that, proper storagetypically refrigerated (2-8C) once reconstituted, and frozen for long-term storage of lyophilized powderis essential to prevent degradation

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