vitamin b12 shot injection site Best Site: Administering B12 Shots Vitamin B12 Shot | IV

By aiding in the conversion of carbohydrates into glucose, Vitamin B12 serves as a catalyst for improved energy metabolism, helping you feel more energized and less tired

So the practical takeaway is not oral is better or SC is better. It is: pick one route, follow the documented per-dose figure for the vial you have, and keep the route constant so that whatever you observe is not confounded by a mid-stream route change

The primary symptoms were burning, stabbing pain that felt like electric jolts

If your deficiency stems from a condition like pernicious anemia that permanently affects absorption, you'll likely need injections every 1-3 months for life