how are b12 injections helpful to ms Vitamin Deficiency and Multiple Sclerosis Folate and Vitamin B12 Supplements
Description
However, allergic reactions are possible, although rare

The synthetic chemical, cyanocobalamin, is not easily absorbed by your body, but methylcobalamin is

Vitamin B12 also plays a critical role in red blood cell production
These side effects typically resolve on their own within 24 to 48 hours