The most common causes include B12 supplementation (particularly injections), liver disease releasing stored B12, haematological disorders increasing B12-binding proteins, and chronic kidney disease reducing B12 excretion
[16] [18] Healthcare providers should weigh the anticipated benefits against potential risks and consider alternative routes or lower doses when appropriate
How soon will I feel less tired after a B12 Injection? B12 shots are injected intramuscularly bypassing the digestive process, they start to work immediately
10.3109/13816810.2013.804098 374 WangT.YangJ.JiX.ChuM.ZhangR.DaiJ.et al (2015)
Les ractions allergiques peuvent prendre des aspects trs varis : urticaire, dme de Quincke, eczma, ruption de boutons rappelant la rougeole, etc
Each injection is pre-filled and intended to be used by one patient only, even if the needle is changed