Hydroxocobalamin Hydroxocobalamin , also known as vitamin B 12a and hydroxycobalamin , is a vitamin found in food and used as a dietary supplement
Guideline on Manufacture of the Finished Dosage Form
B12 vitamin shots may cause pain at the injection site, mild diarrhea, and swelling
The procedure is also routinely performed in outpatient hospital clinics (POS 22 or 19), ambulatory surgery centers (POS 24) when imaging guidance or sterile technique is required, and emergency departments (POS 23) when aspiration is medically necessary to rule out infection or manage acute swelling
For that reason, compare the total contents with your injection schedule rather than judging value by vial count alone
The more meaningful risks are compounding quality, sterile technique, and the possibility of masking an undiagnosed condition behind a monthly energy boost