It can decrease the pain and swelling of arthritis. It may prevent joint damage and reduce the risk of long-term disability. Chloroquine diphosphate 25 μm Chloroquine resistance to antimalarail drugs Chloroquine phosphate for quarantine marine fish Why is hydroxychloroquine important in the treatment of lupus ConfigCtrl2metaDescription}} Hydroxychloroquine treats malaria, systemic lupus erythematosus, rheumatic disorders like rheumatoid arthritis, porphyria cutanea tarda, and Q fever. In 2014, its efficacy to treat Sjögren syndrome was questioned in a double-blind study involving 120 patients over a 48-week period. Combining telbivudine Tyzeka and hydroxychloroquine may increase the risk of unexplained muscle pain, tenderness, or weakness because both drugs cause such side effects. Hydroxychloroquine suppresses the immune system and should not be combined with drugs that also suppress the immune system or live vaccines. 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. Fever with hydroxychloroquine Hydroxychloroquine Sulfate Monograph for Professionals., Hydroxychloroquine - Wikipedia Plaquenil pregnancy safety Effects of hydroxychloroquine? Hydroxychloroquine is a relatively well tolerated medicine. The most common adverse reactions. reported are stomach pain, nausea, vomiting, and headache. These side effects can often be lessened by taking hydroxychloroquine with food. Hydroxychloroquine may also cause itching in some people. Medicines for the Prevention of Malaria While Traveling.. Hydroxychloroquine Plaquenil Side Effects & Dosage for.. Hydroxychloroquine Indications, Side Effects, Warnings.. 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. Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. Stop taking hydroxychloroquine and call your doctor at once if you have trouble focusing, if you see light streaks or flashes in your vision, or if you notice any swelling or color changes in your eyes. 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.