can you do vitamin b12 injections yourself How to self-inject intramuscular - Overview B12 injections UK How I
Description
Cyanocobalamin (vitamin B12) is generally considered very safe as it is well tolerated by dogs, both orally and by injection

It is water-soluble and absorbs relatively quickly from the injection site
For the vitamin to work, your body needs to absorb it properly, and that process can be surprisingly complex

This already happens in Germany, Spain, and France