intramuscular injection sites vitamin b12 How to Give a Injection: Step-By-Step Instructions Cyanocobalamin Vitamin B12 Injection 1000
Description
Do not use a cracked vial

Due to these changes, people with B12 deficiencies can experience symptoms such as fatigue, numbness of extremities, worsening mood or the feeling of depression
Archives of Gerontology and Geriatrics 2007;44(1):4959

The formulation comes in two parts (Part 1 and Part 2) that are mixed before administration by a healthcare professional