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Prescription is only available after consultation with a licensed provider to determine if treatment is appropriate.
People with Digestive Disorders: Conditions such as celiac disease, Crohns disease, or gastritis can interfere with the absorption of vitamin B12 from the gastrointestinal tract
If tolerance is good and no concerning reactions occur, consider increasing to twice-daily application or moving to a 1 percent concentration
The clinical data behind these two compounds tells dramatically different stories, and choosing between them without understanding those stories is a mistake that costs people months of wasted effort and misplaced expectations
doi:10.1073/pnas.0509099103
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