vitamin b12 deficiency anemia require injections monthly What You Need to Know About Vitamin B12 | Linus Pauling

Potential risks include: Infection risk if injections are administered in non-clinical settings without appropriate sterile technique Allergic reactions to any component of the formulation Liver toxicity theoretical concern with excessive methionine or choline Drug interactions particularly if combined with other supplements or medications Unknown long-term effects due to absence of longitudinal safety data The MHRA advises caution with unlicensed injectable products, as quality, purity, and sterility cannot be guaranteed

Many patients found themselves on the sharp end of this after the UK Government enacted lockdown measures in response to the Covid pandemic in 2020

Your prescriber may keep you at the initial daily SubQ level longer or step you up, depending on your goals and how you feel during and after administrations

Your doctor will likely recommend that you use a backup method, for example condoms, during the treatment and for at least a month afterward [4]