Hydroxychloroquine Sulfate is an antimalarial drug, which also has anti-inflammatory, immunomodulatory and anticoagulant effects. At present, hydroxychloroquine is clinically mainly used for the treatment of rheumatoid arthritis, juvenile chronic arthritis, discoid lupus erythematosus and systemic lupus erythematosus, but the clinical effect is slow and usually takes 2 to 4 months.
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