b12 complex injection Multivitamin's B Complex with Vitamin B12 1000mcg For IM / IV Use 10 x 3ml Vitamin B Complex Injections in
Description
Some patients also experience more positive moods and reduced irritability after vitamin B12 injections

You can avoid bruising by alternating the sites

Vitamin B12 deficiency in over 16s: diagnosis and management.

References: Office of Dietary Supplements, National Institutes of Health
