b12 injection tutorial Shot: Step-by-Step Guide for Self-Injection Ivy Grove Surgery : Self-administration
Description
[DOI] [PMC free article] [PubMed] [Google Scholar] 140.Kellenberger, E., Kuhn, I., Schuber, F

Vitamin B12 injections can treat a number of different health conditions, so how often you can take these injections will depend on the reasons why you need the B12 in the first place

Contraindications Sensitivity to the ingredients listed Warnings Anaphylactogenesis may occur with parenteral thiamine

If you have just completed a leg workout, either wait 2-3 hours for blood flow to normalize or choose a different injection site like the abdomen
