what is vitamin b12 injections used for Injections: Benefits and Risks Vitamin B12 Injections vs. Supplements:

The infusion usually takes about 30-45 minutes, during which you can nap, scroll through your phone (and perhaps delete some regrettable texts from last night), watch TV, or even handle some light work if you're feeling ambitious

There is one risk that has nothing to do with the needle

B12 is important during pregnancy, but you might need a different dose or method

Acid suppression medications and metformin also reduce vitamin B12 absorption and so increase the risk of deficiency

The usual practice is for patients to simply turn up at the health centre where the nurse will have a supply of the injections which will be administered and there will be no cost incurred by the patient