Cyanocobalamin 1000mcg/mL; soln for IM or SC inj; contains benzyl alcohol. Give by IM or deep SC inj. Pernicious anemia: 100mcg daily for 6–7 days; then 100mcg every other day for 7 doses; then ...

B12 deficiency is often caused by veganism, Crohn's disease, or pernicious anemia. To treat vitamin B12 deficiency, take B12 supplements and consume more b12-rich foods. Vitamin B12 is a water ...