how long do b12 injections stay in your system Does a Injection Last? UK Treatment Guide – Bolt Pharmacy how long b12 injection last

If your results show a mild deficiency and your GP confirms you dont have absorption issues, you can then try a high-dose sublingual spray for 3 months and re-test

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However, compliance and absorption variability mean injectable therapy remains preferred for confirmed deficiency in elderly patients

Overview Vitamin B12 is a water-soluble vitamin that is naturally present in some foods, added to others, and available as a dietary supplement and a prescription medication

The severity of the deficiency, any health conditions, and how well the treatment works are all important