While some manufacturers claim sublingual or spray forms are better absorbed, evidence does not consistently show they are superior to standard oral tablets in most cases
3 High Vitamin B12 Levels and Cancer: Whats the Connection
The two work through different mechanisms and may produce additive benefits
More injecting advice can be found at our Nurses Corner and our FAQ
If you would like a written, no-obligation review of whether B12 injections, wider vitamin injections or IV vitamin therapy are right for you, book a free consultation at any of our clinics, and check that whoever treats you is listed on the JCCP register
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)
