Specific clinical scenarios where injections are the standard of care include pernicious anemia, severe malabsorption syndromes, post-bariatric surgery when oral supplementation has failed, and critically low serum B12 levels accompanied by neurological deterioration
Some common side effects include: Cold or numb feeling Vomiting False or unusual sense of well-being Feeling of heat Loss of bladder and bowel control Loss of genital sensation and sexual function Nervousness Speak with your physician if any of these common side effects continue or are bothersome
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For patients on established B12 injection therapy, monitoring is based primarily on clinical response and haematological parameters rather than routine serum B12 measurements, which may remain very high without indicating harm or overtreatment
Urine might be a darker yellow if youre dehydrated, as it contains more waste products
Meat, liver, eggs, and milk are therefore sources of the vitamin for other animals, including humans