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Patient-Specific Factors Affecting Dosage Several factors can change the right dose of Vitamin B12
Because a 4.5 mg dose uses almost the entire vial, plan vial supply accordingly
No current UK marketing authorisation was identified
The practical consequence is that once a vial is opened and the rubber stopper has been pierced with a needle, the preservative keeps the contents safe to use for up to 28 days, provided the vial is stored correctly and the stopper is wiped with an alcohol prep pad before each draw
US$ 23.93
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US$ 26.38
US$ 27.48
