What size gauge needle is needed for vitamin B12 (cobalamin) injections? 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 How To Self Administer Vitamin B12 Injections Invigor Medical Needle Size for B12 Injection: 5 Must Know Tips
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what gauge for b12 injections How to Give a B12 Injection: Step-By-Step Instructions