b12 injections botched Are Shots Safe? Royal Palm Beach Medical Group Botched Botox Shots: Ensure Safe
Description
Any problems with the stomach as well as stress, inflammation, allergies and aging can reduce the production of hydrochloric acid and intrinsic factor

[DOI] [PMC free article] [PubMed] [Google Scholar] 41.Stavroulaki E.M., Kokkinaki K.C.G., Saridomichelakis M.N., Steiner J.M., Lidbury J.A., Xenoulis P.G

B12 injections are injected into the muscle and dispersed over time, therefore bypassing the digestive tract, so you get much higher absorption than you would orally
Minor damage to peripheral nerves can result in acute burning sensations while major damage can lead to muscle weakness and even paralysis
