Hydroxysen 200 contains Hydroxychloroquine Sulphate 200 mg, a prescription medication widely used for the treatment and management of malaria, rheumatoid arthritis, and lupus (SLE). It works by reducing inflammation and regulating immune system activity, helping relieve symptoms such as joint pain, swelling, and fatigue. Hydroxysen 200 is also used in certain autoimmune conditions as advised by healthcare professionals. The tablets should be taken exactly as prescribed by a doctor, preferably with food to minimize stomach discomfort. Regular medical monitoring may be recommended during long-term use.