b12 injection arm Vitamin Sites: All You Need to Know b12 injection arm B12 vitamin
Description
"Comparison of sublingual vs

IV infusions deliver B12 intravenously through a catheter placed in a vein
Potential Side Effects and Interactions Vitamin D and B12 do not interact negatively with one another

References Journal of Endocrinology and Metabolism (2014) Safety and metabolism of AOD9604 as a nutraceutical ingredient
doi: 10.1016/S0140-6736(11)60814-3

So, Im going to see how this goes and see if this is something else I want to add