You might also need a diagnosis for conditions like pernicious anaemia , an autoimmune issue that stops your body from absorbing B12 from food
People over 50 are most at risk because your gut absorbs less B12 as you age
Therefore, vitamin B12 should only be injected by a health care professional who is prepared to provide first aid immediately
At the 10mg/ml concentration, the 50-unit draw is cleaner and more comfortable for the 5mg dose
A practical rule of thumb: your largest planned weekly dose should require no more than 80 units (0.8mL) from the reconstituted solution
They may also cause (10), (6): Stomach problems like diarrhea Urinary issues Fatigue Nausea Headache Body pain Allergic reactions (itching, hives i A skin rash caused by allergic reactions to stress and certain foods, medications, or other substances and may lead to bumps and itching