B12 INJECTIONS The Nurse Clinic Not all shots are the same here's a guide Injections are a fast, effective way to deliver medications, nutrients, and vaccines directly into the bodybut not all injections are the 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 Vitamin B12 Injections: What You Need To Know Needle Sizes Explained: Choosing the Right Gauge for Different Injections