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Vitamin B12 and Metformin The diabetes medicine, metformin, interferes with B12 absorption in the intestine by impeding the calcium-dependent intake mechanism
Gastrointestinal absorption barriers of vitamin B 12 can be avoided by intramuscular injection
Easy tolerance from the first application, with no adjustment period needed, might indicate starting concentrations below your skin's capability
This includes children or those who are allergic to cyanocobalamin or cobalt
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