are there any side effects from having b12 injections Why Do I Feel Worse After My Injection? Causes & Management – Bolt Pharmacy B12 Shot Guide: Benefits, Dosage
Description
Microbial production of vitamin B12: A review and future perspectives
What Is MIC B12

It acts as a lipotropic agent to prevent excess fat buildup in the liver and the body, helps relieve or prevent fatigue, and may be useful in some cases of allergy because it reduces histamine release
The mechanism of action of the anti-CD38 monoclonal antibody isatuximab in multiple myeloma

Drug/Laboratory Test Interactions Persons taking most antibiotics, methotrexate, and pyrimethamine invalidate folic acid and vitamin B 12 diagnostic blood assays

In people with normal B12 levels, injections rarely produce reliable fat loss
