can you use insulin needles for b12 injections Dr. prescribed injections. Pharmacy only gave me vials. Where do get your and syringes? What size?? Where do I inject? : r/B12_Deficiency Vitamin B12 Injection Sites: All

If you opt for this one, you wont be getting nearly as much B12 as you think you are, because it will pass straight through your system with little absorption

But there is also a tiny little bit of B12 that can be absorbed without intrinsic factor

Special considerations: Pregnant or breastfeeding individuals should consult their provider

That said, side effects can occur: Common side effects (mild and transient) Injection site reactions: Redness, mild swelling, or tenderness at injection sites

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