Several things influence how long a B12 injection lasts for you: Your current B12 levels: the lower you start, the more your body tends to hold on to, which can stretch the effect
Multiple autoimmune syndrome
Similar patterns of inflammatory mediator changes have been reported in other studies on Wilson disease [61,64]
Cephalalgia 34(10):756766 Neto JX, Pereira M, &, et al (2017) A Chitin-binding protein purified from Moringa oleifera seeds presents anticandidal activity by increasing cell membrane permeability and reactive oxygen species production
Though rare, serious side effects like breathing difficulties or allergic reactions can occur
After a month of rough Gl side effects on my 8mg dose, my provider suggested splitting it and WOW, what a difference