Figure. Subcutaneous injection into the deltoid area The Australian Immunisation Handbook CYANOCOBALAMIN INJECTION, USP 30000 mcg 30 mL (1000 mcg mL) 30 mL VIAL B12 Shots at Home: How, Where & How Often to Inject Yourself AZ IV Medics Choosing the Right Needle and Syringe for B12 Injections: A Complete Guide Ivy Grove Surgery : Self administration of B12 injection Instruction Guide for Intramuscular (IM) Self injection of B12 Methylcobalamin 1mg 5mg