Figure. Subcutaneous injection into the deltoid area The Australian Immunisation Handbook Instruction Guide for Intramuscular (IM) Self injection of B12 Methylcobalamin 1mg 5mg 7.4 Subcutaneous Injections Clinical Procedures for Safer Patient Care How to Give a B12 Injection: Step By Step Instructions B 12 (Methylcobalamin) Therapy MedClub by Dr Jenn 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