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Articles January 2020 Issue

Common Medications and Vitamin B12 Levels

Metformin and acid-lowering drugs may increase risk for vitamin B12 deficiency.

Vitamin B12 plays many crucial roles in the body. It is involved in neurologic function, red blood cell production, DNA synthesis, and a number of important chemical reactions. Vitamin B12 deficiency, while not common, can cause megaloblastic anemia (a disorder of the red blood cells that can cause symptoms such as fatigue, pale skin, and lightheadedness) and neurological and cognitive disorders.

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