intramuscular b12 injection needle size | B12 Syringes 🛎️ The appropriate needle gauge

Screens for bacterial endotoxins that can cause fever or adverse reactions

The large amount doesn't pose a danger because people with pernicious anemia absorb only a small fraction of it

Vitamin B12 The primary compound used in these injections is vitamin B12, a water-soluble vitamin necessary for the production of red blood cells, brain activity, and DNA synthesis

Several studies suggest that high-dose oral supplementation (e.g., 1000 to 2000 mcg daily) can be as effective as injections for some patients, but this depends on individual health status

not simply the form of B12 that is 'active' and can therefore be 'used' by the body

It's wasteful though and I don't think I'll persevere with that method, even though I have a nearly entire box of 100 insulin needles to get rid of now