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Some individuals on the extreme side of things may even feel as if they are going to die
NHS approach to B12 deficiency: NICE Clinical Knowledge Summaries recommend investigating B12 deficiency in patients presenting with macrocytic anaemia, unexplained neurological symptoms, or risk factors including pernicious anaemia, gastrectomy, malabsorption disorders, metformin use, proton pump inhibitors, or nitrous oxide exposure
Bacterial endotoxins in poorly manufactured peptides can cause fever, inflammatory responses, and in severe cases, septic shock
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Side Effects: Cyanocobalamin is generally well-tolerated, but some patients might experience side effects, including