Please review the following URL and make sure that it is spelled correctly. Plaquenil (hydroxychloroquine) belongs to a group of medicines called quinolines. Plaquenil classification What type muscle weakness with plaquenil Hydroxychloroquine belongs to a group of medicines known as antimalarials. It works by preventing or treating malaria, a red blood cell infection transmitted by the bite of a mosquito. However, this medicine is not used to treat severe or complicated malaria. Applies to hydroxychloroquine oral tablet. Along with its needed effects, hydroxychloroquine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention. Check with your doctor immediately if any of the following side effects occur while taking hydroxychloroquine Hydroxychloroquine is used for treating and preventing malaria. As this eMedTV page explains, it can also be used to treat lupus or rheumatoid arthritis. This article also lists common off-label hydroxychloroquine uses and explains how the drug works. Malaria is common in areas such as Africa, South America, and Southern Asia. Plaquenil is used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Uses for hydroxychloroquine Treating Lupus with Anti-Malarial Drugs Johns Hopkins Lupus., Hydroxychloroquine Side Effects Common, Severe, Plaquenil and aravaGeneric of hydroxychloroquine sulfatePlaquenil insomniaUronema chloroquine phosphate Hydroxychloroquine sulfate salt 200 mg is equivalent to hydroxychloroquine base 155 mg. Dermatomyositis, cutaneous disease off-label use Note Used in combination with antipruritic medications, topical therapy, and nonpharmacologic measures Hydroxychloroquine Professional Patient Advice -. What Is Hydroxychloroquine Used For?. Hydroxychloroquine Plaquenil -. Hydroxychloroquine is commonly used alongside other disease-modifying drugs including methotrexate – especially for rheumatoid arthritis. However, some drugs can interact with hydroxychloroquine. Indigestion remedies for example, antacids including some over-the-counter preparations can stop hydroxychloroquine being absorbed. Hydroxychloroquine Plaquenil is considered a disease-modifying anti-rheumatic drug DMARD. It can decrease the pain and swelling of arthritis. 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. This may lead to lasting eyesight problems. The risk may be higher if you have some types of eye or kidney problems. The risk may also be higher with some doses of hydroxychloroquine, if you use hydroxychloroquine for longer than 5 years, or if you take certain other drugs like tamoxifen.