HCQS 200 is a medication containing hydroxychloroquine sulfate, widely used in the management of autoimmune diseases such as rheumatoid arthritis and systemic lupus erythematosus. It works by regulating the immune system and reducing inflammation, which helps alleviate symptoms such as joint pain, swelling, stiffness, and skin rashes. HCQS 200 is also prescribed in certain cases for the prevention and treatment of malaria due to its antimalarial properties.

This tablet is usually taken orally with food to minimize stomach discomfort and is often used as a long-term therapy under medical supervision. Regular medical checkups, including eye examinations, may be recommended during prolonged use. When taken as prescribed, HCQS 200 is generally well-tolerated, with mild side effects, such as nausea or headache, occurring in some individuals.