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Situations or conditions that can cause vitamin B12 deficiency include: You are more likely to develop vitamin B12 deficiency if you have one or more of the following risk factors: Left untreated, vitamin B12 deficiency can cause lasting side effects that affect your nervous system and brain
If you have questions about compounded medications, the approval process, testing requirements or licensing patients must contact their dispensing 3rd party pharmacy directly.
Bioavailabilit y: Oral B12 supplements require intrinsic factor, a protein in the stomach, for absorption
Maintenance Therapy : For ongoing maintenance, a monthly injection of 1 mg (1000 g) is generally sufficient to maintain adequate vitamin B12 levels in most adults
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