These include": H2 receptor antagonists metformin Allergies and medical conditions Those with allergies or medical conditions should always inform a doctor before receiving a vitamin B12 shot
For a deeper dive into the research, see our guide on B12 injection efficacy, or read real patient reviews
Adults over 60 still technically need around 2.4 mcg daily, but absorption becomes weaker with age
Parenteral cobalamin and timing-sensitive interpretation Injected B12, given intramuscularly or subcutaneously and described as parenteral, is an expected cause of a high serum value
frequently asked questions Explore our FAQs for vital insights into B12 shots
Additionally, like all health-related content on this website, this guide was thoroughly vetted by one or more members of our Medical Review Board for accuracy, and our editorial team will continue to monitor it for updates