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These types of drugs are not recommended for people who have a family history of medullary thyroid carcinoma (MTC) or multiple endocrine neoplasia syndromes, specifically types 2A or 2B
While high B12 levels can indicate underlying health issues, they may also occur due to over-supplementation or vitamin injections, which dont always signify a medical problem 5
None have a USP monograph
This helps doctors see if the treatment is working and if any changes are needed
This bioavailability gap means oral dosing requires higher amounts to achieve equivalent systemic exposure
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