Fatigue and Headaches : A few individuals report feeling tired or experiencing headaches after receiving the injections, although these symptoms are typically transient
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The peptide also increases NAD+ levels, which activate the SIRT1 gene
NICE and British National Formulary (BNF) guidance recommend 1 mg hydroxocobalamin on alternate days until no further improvement in symptoms is observed
Getting injections on an aggressive schedule without monitoring blood levels is not the same as evidence-based care
However, if the research demands medical oversight for administration, injectables might be feasible