Subcutaneous (SC) and Intramuscular (IM) Injections Must Knows for Subcutaneous administration: Pinch skin with non dominant hand and hold syringe with dominant hand Always inject: 2 inches away from umbilicus (for abdomen) 3 inches How to self inject intramuscular vitamin B12 Overview Guy's and St Thomas' NHS Foundation Trust 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 B12 vitamin Store Intramuscular vs Subcutaneous Injections for vitamin B12 supplements. Subcutaneous Injection: What It Is and How to Give One Best Vitamin B12 Injection Sites MedHealth 360