For individuals requiring supplementation due to confirmed deficiency or malabsorption, therapeutic doses vary considerably depending on the underlying cause: Dietary deficiency : 50150 micrograms daily orally, or cyanocobalamin tablets as prescribed Pernicious anaemia : Initially hydroxocobalamin 1 mg intramuscularly three times weekly for two weeks, then maintenance injections every two to three months [3] Neurological involvement : More intensive regimens may be required, with hydroxocobalamin injections on alternate days until symptom improvement [3] NICE guidance emphasises that supplementation should be evidence-based rather than speculative
Why Site Rotation Matters For long-term injection success, site rotation is critical
They do different jobs: B12/lipotropic injections are a supportive adjunct, while Compounded Semaglutide is an appetite-control medication, so if youre weighing a GLP-1, start with our compounded semaglutide page
Authorities can save a portion of the blood sample (a blood split)
Metformin, commonly prescribed for type 2 diabetes, is known to reduce B12 absorption over time, as highlighted in MHRA safety updates