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Use a new sterile syringe and needle for each injection
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The recommended dietary allowance (RDA) for vitamin B12 for people Note that the percent of vitamin B12 your body can absorb from supplements is not very high its estimated that your body only absorbs 10 mcg of a 500 mcg B12 supplement
Once reconstituted with bacteriostatic water, the solution must be refrigerated at 2-8C and typically remains stable for up to four weeks
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