Besides B12 deficiency, patients who have pernicious anemia or the nervous system disorder is known as myelopathy can benefit from B12 shots
In industrialized countries, provided the diet is balanced and in the absence of underlying disease, vitamin requirements are covered and deficiencies of nutritional origin are rare
If you havent been taking vitamin B12 supplements for anything longer than a few months, you may want to start by taking 2,000 micrograms (mcg) of vitamin B12 once a day for two weeks to replenish your stores
Compounding pharmacies, regulated by the FDA and state boards, create personalized formulations under stringent quality controls, ensuring purity, accurate dosing, and sterilityreducing risks of contamination or substandard products.[41][42][43] These are tailored for human use under medical supervision, often with third-party testing