Choosing the Right Needle and Syringe for B12 Injections: A Complete Guide B12 Injections at Home Safety Guide for Self Administration Infusion For Health Learn how to administer your own SubQ (subcutaneous) injections at home with confidence. Our step by step guide covers everything you need to know, from preparing your supplies to safely injecting the medication. Our Oral vs. Intramuscular Vitamin B12 in Vitamin B12 Deficiency The Blood Project Common Injections Cheat Sheet Save for Ward Rounds! Insulin Diabetes Subcut 0.51 unit kg Vitamin B12 Deficiency Neuropathy IM 1001000 mcg Tetanus Toxoid