Cyanocobalamin Vitamin B12 Injection 1000 mcg Mountainside Medical B12 Shots at Home: How, Where & How Often to Inject Yourself AZ IV Medics Vitamin B12 Injection Self Administration YouTube CYANOCOBALAMIN INJECTION, USP 10,000mcg 10mL (1,000mcg mL) 10mL VIAL Im Sure Its That #wait, Vitamin B12 deficiency can be surprisingly serious, especially when it comes to the nervous system. Without enough B12, the body struggles to make healthy red blood cells Injection Techniques Step by Step Guide 1. Intramuscular Injection (IM) 90 Angle Needle Position: Perpendicular to the skin (90 angle) Target Site: Muscle layer Common Sites: Deltoid, Vastus Lateralis,