how does a b12 injection make you feel Will my Work Right Away? Vitamin B12 Injection Sites: All

The actual injection takes only a few seconds, and any discomfort is typically minimal and brief

Its a single, well studied vitamin given in a higher dose than youd get from a tablet

Split dosing: Some practitioners split the daily dose into 250 mcg AM and 250 mcg pre-sleep on the rationale that two smaller pulses maintain steadier receptor exposure

mechanism of action and metabolic studies Journal of Endocrinology and Metabolism (2013) Safety and tolerability of AOD9604 in humans

Warnings and Precautions Hypokalemia: B12 therapy may cause a drop in potassium levels (hypokalemia), particularly during early treatment in patients with significant B12 deficiency