vitamin b12 injection subcutaneous Store Intramuscular vs Injections for vitamin B12 supplements Vitamin B12 for Injection Cyanocobalamin

The liver stores are a bit irrelevant to someone who has PA or a B12 absorption problem though because the mechanism that is used to release them relies on the same mechanism that is used to absorb most dietary B12 so accessing any stores is at best very inefficient

In my belly I'm less prone to getting bumps, but the injection site hurts at the time of injection (sometimes only slightly, sometimes so much I have to withdraw) and often through to the next day

Hydroxocobalamin( vitamin b12 injection) starts to work straight away

And if the PA is so far advanced that there is no intrinsic factor left, the antibodies can disappear