how soon does b12 injection work Injections: Who Should Get Them and Long Do They Last? How Quickly Does B12 Shot

Clients often have questions about how MIC Plus B12 works, what it supports and what to expect during treatment

As a water-soluble vitamin, excess B12 is excreted in urine, and no upper limit has been set in the UK due to its low toxicity

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Food and Nutrition Bulletin

However, you should: Call 999 or go to A&E immediately if you experience signs of a severe allergic reaction (difficulty breathing, severe throat/facial swelling, or collapse) Contact your GP if you experience a rash, itching, persistent pain at the injection site, or worsening neurological symptoms despite treatment If you suspect any side effects from your B12 injections, you can report them through the MHRA Yellow Card scheme (yellowcard.mhra.gov.uk)