Hydroxychloroquine Sulfate 200 mg is the name of the white, elliptical / oval pill with the mark HCQS. Ranbaxy Pharmaceuticals Inc. is the manufacturer.
Hydroxychloroquine belongs to the drug classes antimalarial quinolines, antirheumatics, and is used to treat lyme disease, arthritis, dermatomyositis, malaria prophylaxis, malaria, and rheumatoid arthritis. The medicine has not been classified as a risk during pregnancy by the FDA. Under the Controlled Substances Act, hydroxychloroquine 200 mg is not a controlled substance (CSA).