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The initial loading dose phase is crucial here, providing that quick surge of B12 to help address the neurological effects
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The figures on this page assume a 20 mg total blend vial: 3 mL of water gives ~6,667 mcg/mL , so 1 unit 66.7 mcg 250 mcg 4 units, 500 mcg 8 units
10.1111/j.1468-2494.2009.00490.x 14 HuangJ.HengS.ZhangW.LiuY.XiaT.JiC.et al (2022)
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