Contact your GP if you experience: Unexpected symptoms after starting B12 supplementation, including persistent skin reactions, gastrointestinal disturbance, or mild allergic manifestations Neurological symptoms such as significant tingling, numbness, weakness, or balance problemsthese may indicate B12 deficiency paradoxically, or alternative neurological conditions requiring assessment Unexplained fatigue or malaise that develops or worsens despite supplementation Concerns about medication interactions , particularly if taking metformin, proton pump inhibitors, or other medications affecting B12 metabolism [2] [4] Seek emergency medical attention (call 999) if you develop signs of a severe allergic reaction following B12 injection, including facial swelling, difficulty breathing, or widespread urticaria
You really might just need to give your body some time to recover from your hangover
For a non-dietary cause, maintenance is usually one injection every two to three months for life
However, timelines vary based on condition severity, digestive dysfunction chronicity, overall health status, and concurrent healing protocols
These include some heartburn medicines, including esomeprazole (Nexium), famotidine (Pepcid AC), lansoprazole (Prevacid), omeprazole (Prilosec OTC), pantoprazole (Protonix), rabeprazole (Aciphex), as well as some diabetes, gout, and chemotherapy drugs
This warning may affect how patients are treated, especially those using compounded products sold in the U.S