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Deficiency is a widespread phenomenon
A class of peptic ulcer and antacid drugs called histamine H2 receptor agonists, including Tagamet, Zantac, and Pepcid Anticonvulsants including phenobarbital, primidone, and phenytoin Bile acid sequestrants including colestipol and cholestyramine, which lower cholesterol Chemotherapy medications like methotrexate Metformin, which is a diabetes drug Proton pump inhibitor drugs used to treat acid reflux, such as omeprazole (Prilosec), esomeprazole (Nexium), or lansoprazole (Prevacid) Tetracycline, an antibiotic Lastly, it is also essential that you communicate with your provider if you have kidney disease or an allergy to cobalt or any other medication, vitamin, dye, food, or preservative
Which Method Is More Effective
If you suspect a B12 deficiency or have ongoing symptoms, seek appropriate medical evaluation and lab-guided care
Timing Baseline Marker Fasting glucose Why it matters Gives a simple snapshot of current glucose control before interpreting appetite or weight changes
Stronger Blood Cells B12 is essential for making red blood cells
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