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If a vial is accessed repeatedly, the risk of introducing contaminants increases
The answer is straightforward once you understand the logic behind it: add 3 mL of bacteriostatic water to your 30 mg vial
When it runs low, the whole operation starts to grind to a halt
Multiple references
If you take certain medications regularly - such as proton pump inhibitors for a stomach ulcer - your body may struggle to absorb natural vitamin B12 from supplements
some research suggests it stays in circulation longer
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