video of b12 injection Cinematic footage a Vitamin vial placed among medical tools in a laboratory environment, symbolizing healthcare, treatment, and scientific preparation B12 injections UK How I

It includes 1-5 intramuscular or subcutaneous injections of 1000 mcg crystalline cyanocobalamin daily, followed by oral doses of 1000-2000 mcg/day Parenteral administration should be reserved for those with significant neurological symptoms NICE guideline: Vitamin B 12 deficiency in over 16s: diagnosis and management: Malabsorption as the confirmed or suspected cause of vitamin B 12 deficiency: Offer replacement to people if: lifelong intramuscular vitamin B12 Autoimmune gastritis is the cause They have had a total gastrectomy They have had a complete terminal ileal resection If the person has a vitamin B 12 deficiency because of malabsorption that is not caused by autoimmune gastritis, or a total gastrectomy or complete terminal ileal resection (for example, malabsorption caused by coeliac disease, partial gastrectomy or some forms of bariatric surgery): Offer vitamin B 12 replacement and Consider intramuscular instead of

Nerve-related symptoms such as tingling or numbness may take several weeks or months to fully improve

Cyanocobalamin, while effective, requires conversion before it can be fully utilised

Preferred Injection Sites and Techniques The deltoid and gluteal muscles are often used for B12 injections