adverse reaction to b12 injection What Are Injections? And Are They Safe? Possible allergic reaction to B12
Description
The larger trial didnt hold up well enough for pharmaceutical development to continue

Circulation 124 , 19962019 (2011)
[1] [2] While high-dose oral B12 supplements can be effective through passive diffusion, they are not routinely recommended for pernicious anaemia management in UK practice
This may explain why so many people say they feel amazing when taking vitamin B12 shots and injections even if they were taking oral forms of vitamin B12 previously
