While breastfeeding, 2.8 mcg of B12 is recommended. Methylcobalamin is a natural form of vitamin B12, and cyanocobalamin is ...
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; ...