is b12 injections better than tablets Shots vs. IV Infusions: What the difference? Vitamin B12 Injections vs. Supplements:

High-dose oral therapy (10002000 micrograms daily) can be effective even in pernicious anaemia, as approximately 1% of B12 is absorbed through passive diffusion independent of intrinsic factor

They are usually given as an intramuscular injection in the arm or hip

If you are unsure about its storage during your trip, ask your healthcare provider or pharmacist for advice

Consult your doctor before using this medicine again

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While some places might market it for general energy boosts or weight loss, if your B12 levels are already normal, there's little scientific proof that these injections will give you a significant energy rush or help you lose weight