can you give yourself vitamin b12 injections How to a Injection B12 Shots at Home: NHS

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While most patients tolerate B12 shots well, mild side effects can occasionally occur, including minor pain or redness at the injection site, mild diarrhoea, or, in rare instances, an allergic reaction

Other side effects are very rare

B12 Deficiency Info website b12deficiency.info/ B12 Awareness (US website) b12awareness.org/ B12d.org holds support meetings near Durham, UK b12d.org/event Stichting B12 Tekort (Dutch website with English articles) stichtingb12tekort.nl/weten

Are there any risks for people with certain medical conditions

If you've recently received a pneumonia shot,...