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Vitamin B12 injections are generally safe side effects are mild
Your doctor may require regular blood tests to monitor your body's reaction to the injections
Lotz-Havla AS, Wei KJ, Schiergens KA, Brunet T, Kohlhase J, Regenauer-Vandewiele S, Maier EM
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Allow the skin to dry completely before injecting to minimize pain and prevent the alcohol from entering the injection site
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