where is the b12 injection given Vitamin Sites: All You Need to Know B12 Shot: Step-by-Step Guide for
Description
The upper end provided no additional benefit while increasing cost
Scientists at Metabolic Pharmaceuticals in Australia took that fragment and modified it by adding a tyrosine residue to the front (N-terminus)
While serious side effects are uncommon, patients should immediately report any concerning symptoms to their healthcare provider

Mild side effects may include pain or redness at the injection site

2017 Mar 23;9(4):317
