It can decrease the pain and swelling of arthritis. It may prevent joint damage and reduce the risk of long-term disability. Plaquenil treatment for scleroderma Aralen phosphate cost Why can't i take the generic for plaquenil Hydroxychloroquine belongs to the family of medicines called antiprotozoals. Protozoa are tiny, one-celled animals. Some are parasites that can cause many different kinds of infections in the body. This medicine is used to prevent and to treat malaria and to treat some conditions such as liver disease caused by protozoa. Plaquenil hydroxychloroquine is an antimalarial medication used to treat or prevent malaria, a disease caused by parasites, which enter the body through the bite of a mosquito. Plaquenil is also used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. 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. Today, it is used to treat rheumatoid arthritis, some symptoms of lupus, childhood arthritis (or juvenile idiopathic arthritis) and other autoimmune diseases. Hydroxychloroquine is in a class of medications that was first used to prevent and treat malaria. Hydroxychloroquine other uses Hydroxychloroquine Plaquenil Side Effects & Dosage for Malaria, Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses 60 increase in malaria deaths after chloroquine failureCan plaquenil affect menstruationDoes plaquenil cause weight gain Plaquenil is the brand name for the prescription drug hydroxychloroquine. It's used to treat and prevent malaria infection, and to reduce symptoms and progression of autoimmune diseases such as lupus, rheumatoid arthritis, and others. Plaquenil Hydroxychloroquine - Side Effects, Dosage, Interactions - Drugs. Hydroxychloroquine Side Effects, Dosage, Uses, and More. Plaquenil Hydroxychloroquine Uses, Dosage, Side Effects.. Hydroxychloroquine can reduce the skin problems linked with lupus and prevent the pain and swelling brought on by arthritis. This medication may also be used to treat other infections such as Q fever endocarditis, a type of heart valve infection. Hydroxychloroquine is used to treat rheumatoid arthritis; discoid and systemic lupus erythematosus SLE. Over the long term hydroxychloroquine can reduce pain, swelling and joint stiffness. If you have lupus, it may also improve the rash. It may be as long as 12 weeks before you notice the benefits. Plaquenil hydroxychloroquine is considered an older DMARD disease modifying anti-rheumatic drug. Plaquenil was actually first classified as an antimalarial drug, but it is also used to treat certain rheumatic and autoimmune conditions which are unrelated to malaria.