Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Proguanil plus chloroquine Chloroquine sugar cravings Can a person eat grapefruit when taking the drug hydroxychloroquine Hydroxychloroquine is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Important information Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. 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. Plaquenil is the brand name of hydroxychloroquine, a drug used to prevent or treat malaria. Plaquenil is also used for long-term treatment of autoimmune diseases such as rheumatoid arthritis RA and systemic lupus erythmatosis. Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. Hydroxychloroquine is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Rheumatoid arthritis medication plaquenil Hydroxychloroquine MedlinePlus Drug Information, Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses Teva-chloroquine dosagePlaquenil and antiplatelet drugsPlaquenil for spondyloarthritis Nov 09, 2018 For best results, keep using the medication as directed. Talk with your doctor if you have fever, vomiting, or diarrhea during your treatment. When treating lupus or arthritis, hydroxychloroquine is usually given daily for several weeks or months. For best results, keep using the medication as directed. Hydroxychloroquine - Side Effects, Dosage, Interactions.. Long-Term Side Effects of Plaquenil for Rheumatoid Arthritis. Hydroxychloroquine HCQ Arthritis Society. Mar 27, 2012 Hydroxychloroquine Plaquenil – medications for Rheumatoid Arthritis RA Hydroxychloroquine Plaquenil is primarily used in combination with other drugs, including methotrexate and/or sulfasalazine for moderate to severe Rheumatoid Arthritis. 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. BRAND NAMES Plaquenil. Medication Uses How To Use Side Effects Precautions Drug Interactions Overdose Notes Missed Dose Storage. USES Hydroxychloroquine is used to prevent or treat malaria infections caused by mosquito bites. It does not work against certain types of malaria chloroquine-resistant.