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Most standard lyophilized research vials are commonly prepared using 2mL of bacteriostatic water unless otherwise specified directly on the product page or vial label
Always convert mg to mcg (multiply by 1000) before calculating
Likewise, various prescription medications may affect B12 levels or B12 may interfere with their action
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Those dealing with numbness, weakness, low appetite, or tingling could see better results with B12
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