how often can i have b12 injections Injection Dosage and Frequency: 7 Guidelines for Adults Vitamin B12 Injection Dosage |

For a 10 mg vial: 1 mL gives 10 mg/mL (a 2.5 mg dose = 0.25 mL = 25 units), 2 mL gives 5 mg/mL (2.5 mg = 0.5 mL = 50 units), and 3 mL gives about 3.33 mg/mL (2.5 mg = 0.75 mL = 75 units)

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WEIGHT For those with deficiencies, B12 shots provide the potentially useful perk of increasing metabolism

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