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People who don't get enough of the essential vitamin can experience nausea, fatigue, dizziness or depression among other symptoms
If after 15-20 minutes you still see undissolved powder, gently roll the vial between your palms
Because levels are often quite low before a deficiency is recognized, it can take some time for serum concentrations to even out and symptoms to subside
However, further research is needed to confirm these effects
The standard protocol involves 0.25 to 0.5 mg injected subcutaneously once or twice daily near the affected elbow for 4 to 8 weeks
Summary: Vitamin B12 injections for pernicious anaemia deliver hydroxocobalamin intramuscularly to bypass malabsorption caused by lack of intrinsic factor, rapidly correcting deficiency and preventing neurological damage
