facts about b12 injections Shots: Benefits, Uses, Safety, Cost & How They Work B-12 shots and their benefits

Maintenance doses are typically 1 mg every 2-3 months for life High-dose oral therapy (1000-2000 micrograms daily) may be effective in selected patients with pernicious anaemia under clinical supervision, as passive diffusion can compensate for absent intrinsic factor, though this is not routine first-line treatment in the UK The water-soluble nature of B12 means that high-dose supplementation carries minimal risk of toxicity , making it a safe option for individuals with confirmed or suspected deficiency

I don't understand why you had injections if you didn't have any symptoms before

Some patients need weekly injections to maintain steady benefits (like for a weight loss program), while others might schedule treatments monthly

A few of them are also in the later phases of clinical trials

(September 2014)