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People with Absorption Issues : People with Crohns disease or celiac disease may not be able to absorb B12 from food, so injections are a better option
It includes 1-5 intramuscular or subcutaneous injections of 1000 mcg crystalline cyanocobalamin daily, followed by oral doses of 1000-2000 mcg/day Parenteral administration should be reserved for those with significant neurological symptoms NICE guideline: Vitamin B 12 deficiency in over 16s: diagnosis and management: Malabsorption as the confirmed or suspected cause of vitamin B 12 deficiency: Offer replacement to people if: lifelong intramuscular vitamin B12 Autoimmune gastritis is the cause They have had a total gastrectomy They have had a complete terminal ileal resection If the person has a vitamin B 12 deficiency because of malabsorption that is not caused by autoimmune gastritis, or a total gastrectomy or complete terminal ileal resection (for example, malabsorption caused by coeliac disease, partial gastrectomy or some forms of bariatric surgery): Offer vitamin B 12 replacement and Consider intramuscular instead of
Plus, the symptoms of low B12 can be very subtle, or they may be confused for symptoms of other conditions
If you identify any issues, please contact us
In two trials employing 1000 g/day oral vitamin B 12 , there was no clinically relevant difference in vitamin B 12 levels when compared with IM vitamin B 12
They can also recommend treatments for specific side effects where necessary
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