Vitamin B 12 Injectable Solution VITAMIN B12 cyanocobalamin injection, solution At Home Vitamin B12 4 Week Injection Package MUST BE A FLORIDA RESID CardioMender, MD At Home Vitamin B12 4 Week Injection Package MUST BE A FLORIDA RESIDENT Vitamin B12 deficiency, sometimes called cobalamin deficiency, happens when your body is either not getting enough or not absorbing enough vitamin B12 from the foods you eat. Vitamin B12 is an important Oral vs. Intramuscular Vitamin B12 in Vitamin B12 Deficiency The Blood Project