every draw keeps the vials fixed 50/10/10/10 ratio
[6] [25] At levels only slightly below normal, deficiency can result in fatigue, headaches, feeling faint, rapid breathing, pale skin, numbness or tingling, poor appetite, heartburn, poor balance, difficulty walking, poor reflexes, blurred vision, memory problems, depression, irritability, inattention, cognitive decline, dementia, and even psychosis
The consistently reported poor diagnosis and treatment experience encountered in UK Primary Care by people with a diagnosis, or symptomatic of, Pernicious Anaemia in the UK is well documented and reported on in research carried out and published by the Pernicious Anaemia Society
Vitamin B12 is generally considered safe