b12 injection in deltoid Administering a Intramuscular : 5 Steps Vitamin B12 Injections for Pernicious

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Novel methylcobalamin nasal spray versus intramuscular injection: A randomized, crossover comparative bioavailability study Int J Endocrinol Metab Disord

Im about 4 weeks in and dont notice anything different

These include the competing effects of the formation of cobalamin-like molecules in our body (the so-called cobalamin analogues or pseudo-cobalamins), which may impair the proper action of the good cobalamin

(the significance of a high cobalaminconcentration in blood) Ermens AAM, Vlasveld LTh, Van Marion-Kievit JA, Lensen CJPA, Lindemans J