At Home Vitamin B12 4 Week Injection Package MUST BE A FLORIDA RESID CardioMender, MD VITAMIN B12 (Generic) Injectable Solution, 1000 mcg mL, 100 mL vial Easy Refills Chewy Rx Vitamin B12 Injection 100ml Cyanocobalamin (B12) Injection 1000 mcg mL, Multiple Dose Vial 30 mL McGuff Sandoz Vitamin B12 Injectable Solution 1000 mcg 10 mL Vitamin B12 Luminous B12 Injections What is a B12 injection A B12 injection is a form of supplementation where vitamin B12 is administered directly into the muscle or under the skin, bypassing