Potential Risks Risks depend on the exact product and your health history, but can include: Injection-site reactions (pain, bruising, swelling) Allergic or hypersensitivity reactions (rare but possible) Product-quality risks if the mixture is compounded and not prepared under appropriate standards For B12 injections specifically, review FDA-approved labeling and warnings (see the FDA prescribing information for cyanocobalamin injection )
What does a B12 shot do for you
If you are pregnant, breastfeeding, or have specific medical concernssuch as kidney disease, low potassium levels, or certain blood disordersplease mention these during your consultation
Cypess AM, Lehman S, Williams G, Tal I, Rodman D, Goldfine AB, et al