what happens if you have too much b12 injections Vitamin B12: Symptoms, Dosage & Toxicity Risks Vitamin B12 Injection Side Effects

[16] Although cyanocobalamin lacks a defined upper-toxicity threshold due to its water solubility and renal elimination, exceptionally high cumulative doses have been temporally associated with acneiform eruptions, altered potassium homeostasis, and theoretical thrombotic risk, emphasizing the importance of evidence-based dosing

Many patients then receive maintenance injections about once a month (or in some cases every 2-3 months) to keep their vitamin B levels in the normal range

If its almost time for your next dose, skip the missed dose and continue with your regular schedule

While most people get enough B12 from the food they eat, however, some people struggle to absorb enough B12 from their diet, leading to a deficiency