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Its a synthetic 15-amino-acid chain based on a fragment of a protein found in gastric juice, and that origin gives it an unusual property: its stable in the acidic conditions of the stomach
In cases of B12 deficiency, where the body lacks sufficient vitamin B12, Methylcobalamin is used
After starting intramuscular vitamin B12 (cyanocobalamin) therapy with four weekly injections followed by monthly dosing, when should the serum B12 level be rechecked and what criteria allow discontinuation of the injections?
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