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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.
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Leflunomide used against Rheumatoid arthritis acts by inhibiting:
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The correct answer is  Leflunomide inhibits Dihydroorotate Dehydrogenase and inhibits synthesis of pyrimidine and arrests growth of B-cells.