B12 Injections at Allura Skin, Laser & Wellness Clinic Instruction Guide for Intramuscular (IM) Self injection of B12 Methylcobalamin 1mg 5mg Needle Injection Techniques Every Nurse Should Know! Whether you're prepping for your NCLEX or brushing up on your skills, here's a quick breakdown of the most common injection routes you'll encounter B 12 Compliance Injection: Package Insert Prescribing Info How to self inject intramuscular vitamin B12 Overview Guy's and St Thomas' NHS Foundation Trust