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side effects of b12 injections hydroxocobalamin (Vitamin B12): Uses, Alternatives, & More Why Do I Feel Worse
Description
Tracks side effects, resuming treatment as needed

Walk into any medical spa catering to athletes and youll likely see B12 injections prominently featured on the menu

Before taking this medicine You should not use Vitamin B12 if you are allergic to cyanocobalamin or cobalt, or if you have Leber's disease (an inherited form of vision loss)

For sublingual use, methylcobalamin may offer advantages because it is absorbed directly into the bloodstream without requiring conversion