Side effects, interactions, and precautions Vitamin B12 is generally well tolerated when used as directed, but side effects can occur and may vary by formulation
Advisers with commercial stakes may recommend wider access
It is usually administered in a healthcare setting, such as Neighborhood Medical Center, and the injection is typically given in the muscle (intramuscular, IM) or under the skin (subcutaneously)
Seattle, WA: University of Washington
This article explores the benefits, risks, and what you should expect from this treatment
Upon contact with a cell, it quickly penetrates the protective barrier and heads straight to the nucleus, where genes are "turned on" and "turned off"