can a b12 injection give you a headache Headaches — Concussion Alliance What happens if you inject

Zero Waste Win: Unlike pills that lose over 98% in folks with issues like pernicious anemia, this IV ensures nothing goes unused

Common experiences after the first injection include: Mild soreness or redness at the injection site (usually resolves within 12 days) Slight improvement in energy levels or mood No immediate noticeable change (particularly common if deficiency is severe) Rarely, mild side effects such as headache or dizziness Some patients report their urine becoming brighter or more intensely coloured following injection, which occurs because excess B12 is excreted renally

This rapid response is due to the direct injection of Vitamin B12 into the bloodstream, which allows for quick uptake by the body

Mount Sinai, Vitamin B12 deficiency anemia, Niranjan N Singh, Florian P Thomas, Alan L Diamond at al, Vitamin B12-Associated Neurological Diseases, Medscape Mathew, A.R

Check with your doctor immediately if you have any of these side effects