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Researchers should determine suitability based on the requirements of their individual study protocols
Vitamin B12 injections (hydroxocobalamin or cyanocobalamin) are effective for raising the vitamin B12 level in the blood quickly
burned a bit at first but got used to it
Typical Dosage Range Most men with low vitamin B12 levels receive around 1,000 mcg per injection, depending on their blood levels and health goals.( 9 ) However higher doses, as much as 2,000 mcg can also be safe in some cases
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