Vitamin b12 Injection CardioMender, MD Cyanocobalamin (Dodex): Uses, Side Effects, Dosage & Reviews 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 CYANOCOBALAMIN INJECTION, USP 30000 mcg 30 mL (1000 mcg mL) 30 mL VIAL Why Your Vitamin B12 Injection Remains Prescription Only