can too many b12 injections be harmful

More serious vitamin B12 side effects may include the following: Allergic reactions, such as hives, trouble breathing, or swelling of the face, lips, tongue or throat Size:Discovery Size (10 mL) Vitamin B12 Integrative Peptides BPC-157: complete guide to oral peptide supplements - SeekPeptides https://eu.vivolife.com/cdn/shop/articles/medicine-injections-vaccination-concept-hands-i-2021-09-01-17-00-27-utc.jpg?crop=center&height=600&v=1661521947&width=600

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