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Dosing Protocol Research-use protocol examples with verified 100 mg vial conversions
Common side effects include injection site reactions (pain, redness, swelling), gastrointestinal symptoms, and allergic reactions
A compound affecting so many biological pathways could easily have subtler harms that small trials (or enthusiastic investigators) might miss
One vial to store instead of two
The body can absorb between 55% and 97% of B12 from injections, compared to only about 1.3% from a high-dose oral supplement
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