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Brain fog feels like thinking through mist

[DOI] [PubMed] [Google Scholar] 148.Zhang K, Shen X, Wu J, Sakaki K, Saunders T, Rutkowski DT, et al

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Scenario B: the same patient presents to the emergency department with an acute upper GI hemorrhage, hematemesis, and hemoglobin dropping from 11.2 to 8.8 over six hours

the clinical relevance of this finding in humans is unknown, and in UK and EU prescribing information this is noted as a precaution rather than a formal contraindication but individuals with a personal or family history of medullary thyroid carcinoma or multiple endocrine neoplasia type 2 (MEN2) should discuss this with their doctor

It reliably raises serum B12 levels, resolves megaloblastic anemia, and, when started before irreversible damage, can reverse neurological symptoms