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If it is proven that the intestines are not able to absorb vitamin B12, 100 g of cyanocobalamin / hydroxocobalamin / hydroxocobalamin acetate are administered once a month
It happens because the stomach lacks intrinsic factor, a protein needed for absorption
Routine serum B12 measurement is not useful once on injection therapy
Also, drinking caffeine has no effect on how your body metabolizes alcohol
While rare, these require immediate medical attention
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