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[106] Other drugs [edit] Certain medications can decrease the absorption of orally consumed vitamin B 12 , including colchicine, extended-release potassium products, and antibiotics such as gentamicin, neomycin and tobramycin
Some people experience digestive upset from high-dose B12 supplements
Currently maintains 80-pound weight loss but has regained 20 pounds
Although vitamin B12 is water-soluble and excess amounts are typically excreted in the urine, the body still stores significant quantities (primarily in the liver) with its levels continuously regulated
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