Peptide therapy is not a drug and is not approved by the FDA to diagnose, treat, cure, or prevent any disease
According to the NICE Clinical Knowledge Summary (CKS) and the British National Formulary (BNF) , the standard treatment for B12 deficiency without neurological symptoms involves: Hydroxocobalamin 1 mg intramuscularly three times weekly for two weeks Followed by maintenance doses of 1 mg every three months For patients with neurological symptoms (such as paraesthesia, numbness, cognitive changes, or gait disturbances), more intensive treatment is required: Hydroxocobalamin 1 mg intramuscularly on alternate days until no further improvement occurs Followed by 1 mg every two months for maintenance Pernicious anaemia , an autoimmune condition where the body cannot produce intrinsic factor, requires lifelong treatment
(PubMed) Vacek TP, Kalani A, Voor MJ, Tyagi SC, Tyagi N
Gastroenterology 135 , 610620 (2008)