do vitamin b12 injection go bad Hi I bought the injectable liquid but there's no use by date on it or how long you have to use it once it's opened. Anyone know the answer? TIA x Why do I feel worse

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When you discuss your symptoms with your doctor, you only can make one first impression

doi: 10.1097/MCG.0b013e3181354294

[DOI] [PubMed] [Google Scholar] 6.Jensen MD, Ryan DH, Apovian CM, Ard JD, Comuzzie AG, Donato KA, Hu FB, Hubbard VS, Jakicic JM, Kushner RF, Loria CM, Millen BE, Nonas CA, Pi-Sunyer FX, Stevens J, Stevens VJ, Wadden TA, Wolfe BM, Yanovski SZ G

HIGH POTENCY: While most B12 supplements contain 1000 mcg to 3000 mcg per serving, we give you the same number of servings per bottle at 5000 mcg, or you can double your servings by taking just 2500mcg - so you get more for your money