Take this medicine with meals or milk to lessen stomach upset, unless otherwise directed by your doctor. Your infection may not clear up if you stop using the medicine too soon. Does hydroxychloroquine lower blood sugar How long does it take plaquenil to work Diopsys for plaquenil Hydroxychloroquine oral tablet is available as a brand-name drug and a generic drug. Brand name Plaquenil. Hydroxychloroquine comes only as a tablet you take by mouth. Hydroxychloroquine is used to treat malaria, lupus erythematosus, and rheumatoid arthritis. Plaquenil hydroxychloroquine is an older DMARD used to treat certain rheumatic conditions. Learn about its safety, side effects, and benefits. Hydroxychloroquine is in a class of medications that was first used to prevent and treat malaria. Today, it is used to treat rheumatoid arthritis, some symptoms of lupus, childhood arthritis or juvenile idiopathic arthritis and other autoimmune diseases. It is not clear why hydroxychloroquine is effective at treating autoimmune diseases. The dose of this medicine will be different for different patients. For patients taking hydroxychloroquine to prevent malaria: If you are also taking kaolin or antacids, take them at least 4 hours before or after using hydroxychloroquine. What is hydroxychloroquine taken for Hydroxychloroquine – what you can expect when starting treatment, Taking Plaquenil for Rheumatoid Arthritis Prophylaxis of malaria chloroquineHydroxychloroquine for frontal fibrosing alopeciaHow does chloroquine phosphate work Hydroxychloroquine is taken in tablet form, with or after food. Your doctor will advise you about the correct dose. Usually you will start on a full dose of 200–400 mg daily, and later your doctor may reduce this. When your condition is very well controlled you may be advised to take hydroxychloroquine only 2–3 times per week. Hydroxychloroquine Side-effects, uses, time to work. Hydroxychloroquine Plaquenil. Hydroxychloroquine - Wikipedia. Hydroxychloroquine is usually taken with food or milk to prevent stomach upset. The dosage and length of treatment are based on your medical condition and response to therapy. In children, dosage is also based on weight. Hydroxychloroquine Plaquenil is a drug that is classified as an anti-malarial drug. Plaquenil is prescribed for the treatment or prevention of malaria. It is also prescribed for the treatment of rheumatoid arthritis, lupus, and the side effects of lupus such as hair loss, joint pain, and more. Originally, hydroxychloroquine was used to prevent and treat malaria and was considered very effective. Now it is generally used for rheumatoid arthritis, but it has also been shown to work well for juvenile arthritis, some lupus symptoms, and other types of autoimmune conditions.