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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 40 year old man has megaloblastic anemia and early signs of neurological abnormality. The drug most probably required is:
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The correct answer is  Deficiency of vitamin B12 results in megaloblastic anemia and demyelination. It can cause subacute combined degeneration of spinal cord and peripheral neuritis.