weekly b12 injections side effects Vitamin Understanding the B12 Vitamin Shot:
Description
All injections come with a risk of local pain or irritation at the injection site

I also take methylfolate and other B vitamins with the Methyl-B12

How Important Are Pre- and Post-Operative IV Therapies

I did ask about the scarring, apparently not much can be done

Vitamin B9 deficiency is also an influencing factor in megaloblastic anemia, along with B12
