Instruction Guide for Intramuscular (IM) Self injection of B12 Methylcobalamin 1mg 5mg Vitamin B12 Injections and Weight Loss: How Does it Work? B12 injections training course 300 One day course perscriber set up for prescriptions with our nurse insurance referral learning how to take blood pressures included each injection would cost you around HOW TO SELF INJECT B12 AT HOME with Dr. Tyler Rogers , , If youve been prescribed vitamin B12 shots or exploring at home wellness, this step by step guide will walk you through how to do your own Where to Inject Vitamin B12