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After injections the decline is slower, and a level can stay above the reference range for six months or more after the last dose
//// Nevertheless there is no medical evidence that injections of vitamin B12 promote health in anyone other than those who are suffering from a B12 deficiency
Adverse reactions: mild transient diarrhea, polycythemia vera, peripheral vascular thrombosis, transient rash itching, bloating sensation
Carrying syringes and vials raises practical and sometimes legal complications that a simple nasal spray bottle avoids
Refrigerate: store the reconstituted vial at 28 C , protected from light, and never freeze it
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