How to Give a B12 Injection: Step By Step Instructions B12 Shots at Home: How, Where & How Often to Inject Yourself AZ IV Medics Instruction Guide for Intramuscular (IM) Self injection of B12 Methylcobalamin 1mg 5mg How are you feeling? Support your body at the cellular level Vitamin B12 plays a key role in red blood cell production, nervous system function, and energy metabolism, helping your body Patient Guide to Self Administering Vitamin B12 Injections Southmead Surgery Wheres The Best Place To Give A B12 Shot