pernicious anemia and vitamin b12 injections Injection at a Licensed Pharmacy Vitamin B12 Injections: Hot Shots?
Description
Why does vitamin B12 deficiency affect feet first

Ive lost 10 pounds within the 1st 3 weeks
Injection site reactions Minor redness, swelling, or itching at injection sites occurs occasionally with both compounds

Since your body cant make its vitamin B12, you need to get it from external sources