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 B 12 (Methylcobalamin) Therapy MedClub by Dr Jenn How to self inject intramuscular vitamin B12 Overview Guy's and St Thomas' NHS Foundation Trust Cyanocobalamin Vitamin B12 Injection 1000 mcg Mountainside Medical B12 vitamin Store How to Perform a Subcutaneous Injection of Vitamin B12