If used in these patients, more frequent monitoring is required because of the potential for erratic or blunted absorption
primary care-based study In a large nationally representative sample of U.S
Chronic Conditions: Individuals with chronic conditions that affect B12 absorption, such as pernicious anemia or gastrointestinal disorders, may need regular injections throughout their lives
[30] At the injection site, its possible to have some redness, swelling, or irritation
As it happens, I was in a similar situation to deniseinmilden in that I stocked up with a bulk purchase from Germany prior to the end of the Brexit transition period as I thought this might be the safest thing to do, seeing as it's virtually impossible to source the stuff in the UK from what I can see
Other people who might not get enough from their diet