Vitamin B12 Injections: Hot Shots? Full Guide PA Relief What size gauge needle is needed for vitamin B12 (cobalamin) injections? Insulin Pen Needles Dr. prescribed B12 injections. Pharmacy only gave me vials. Where do you get your needles and syringes? What size?? Where do I inject? : r B12_Deficiency
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needle gauge for b12 injection Easy Touch U-100 Insulin Syringes Short Needle, 31 gauge