With B12 injections, you also have to be careful not to inject them into a vein
The right side of the face is more often affected than the left side
Weight loss progress needs tracking
However, calling it the active-B12 test is slightly misleading, because it measures all B12 bound to transcobalaminincluding biologically inactive forms
If pain is constant, burning, post-dental, viral-related, treatment-resistant, or not supported by meaningful vascular compression on MRI, the active mechanism may be different
However, generally avoid high salt for storage unless required, because aggregates often form more readily at physiological or higher ionic strength1