Children presenting neurological signs or symptoms, those unable to take oral medication, individuals with known malabsorption syndromes, infants under 6 months old, and patients using medications that may interfere with vitamin B12 absorption are typically treated with a parenteral protocol (1)
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Vegetarians and vegans
Factors that can increase the risk of B12 deficiency include being over the age of 75, digestive absorption issues, autoimmune conditions, and certain diets like vegetarianism and veganism
This precision is crucial for maintaining the correct therapeutic dosage
Vitamin B12 insufficiency that is not due to poor dietary intake is often treated with hydroxocobalamin injections once every 2-3 months for the rest of one's life