vitamin b12 injection benefits for men B12 Injections: What You Need To Know Vitamin B12 Supplements and Injections
Description
Therefore, in patients with renal or hepatic insufficiency (or both), arginine is generally avoided or only administered with extreme caution under close monitoring

This means every injection becomes a guess
Strong safety record across clinical reviews
doi: 10.1038/nature07228 [DOI] [PubMed] [Google Scholar] 90