Vitamin B12 Injections in Fort Lauderdale Vitamin B12 Deficiency Vitamin B12 deficiency happens when the body does not have enough vitamin B12. Vitamin B12 is important for making healthy red blood cells and keeping nerves Managing pernicious anaemia in the time of corononavirus Cyanocobalamin (B12) Injection 1000 mcg mL, Multiple Dose Vial 30 mL McGuff Only One Chance B12 Deficiency Pernicious Anaemia Society Vitamin B 12 3000 mcg Injection, 100 mL Petco