Plaquenil is used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Malaria is common in areas such as Africa, South America, and Southern Asia. Hydroxychloroquine and dry mouth Benefit of plaquenil Hydroxychloroquine Plaquenil, chloroquine Aralen, and quinacrine Atabrine are medications that were originally used to prevent or treat malaria. However, during World War II it was also found that these medications were effective in treating the symptoms of lupus. Treatment is available for lupus, but understanding how to prevent flares of this disease is very important to improve a person’s overall quality of life. Plaquenil This is an. It may prevent joint damage and reduce the risk of long-term disability. 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. Apr 4, 2017. Plaquenil is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. This medicine is not effective against all strains of malaria. Plaquenil prevent lupus Protecting your eyesight when taking Plaquenil Lupus., Lupus Treatment, living with lupus, and prevention Prophylaxis for malaria in chloroquine resistant area 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. Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses. How Does Plaquenil Work For Rheumatoid Arthritis. Plaquenil Hydroxychloroquine MyLupusTeam. Hydroxychloroquine Plaquenil is used to treat malaria, lupus, and rheumatoid arthritis. Learn about side effects, warnings, dosage, and more. Plaquenil hydroxychloroquine has been used for years as an antimalarial drug. It is also used to combat the symptoms of lupus with minimal side effects Some medicines can slow down your lupus. Doctors call these DMARDs. This stands for Disease-Modifying Anti-Rheumatic Drugs. Hydroxychloroquine is a DMARD. The brand name is Plaquenil. What does Plaquenil do? Plaquenil relieves pain and swelling and prevents damage to joints. How long does Plaquenil take to work? Plaquenil works very slowly.