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Product labels may contain important safety information and the most recent product information provided by the product manufacturers should be carefully reviewed prior to use to verify the dose, administration, and contraindications
Older adults often produce less stomach acid, which is necessary to release B12 from food
Treatment duration differs significantly between the two options
However , scientific proof for this mainly applies to people who already have a deficiency
Storage guidelines differ between multi-dose pens and single-dose devices , and it's important to understand which type of device you're using
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