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A single-center, double-blinded, randomized controlled study to evaluate the relative efficacy of sublingual and oral vitamin B-complex administration in reducing total serum homocysteine levels
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Individuals with risk factors for B12 deficiency including strict vegans, those with gastrointestinal conditions, patients taking long-term metformin or proton pump inhibitors, and older adultsshould discuss screening with their GP, even in the absence of obvious symptoms
ADVERSE REACTIONS: Intramuscular injection can cause skin rashes, itching, diarrhea, and allergic asthma
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