subcutaneous vs intramuscular b12 injections How to Inject Vitamin Vitamin B12 Injections | B12

I had the second shot about two days ago and had a much higher fever, the arm pain was not quite as severe but was definitely bad and Ive broken out with some bruises on my left leg which is the same side as the vaccine arm

B12 injections are administered like any other injection, typically in the thickest part of the upper arm muscles

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Medically reviewed by: Jayden Lee, PharmD, EMBA Jayden Lee, PharmD, EMBA, is the PlexusDx Medical Science Liaison with a PharmD and MBA specializing in pharmacogenomics and clinical product development, with a proven ability to bridge the gap between genomic research and practical patient outcomes