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: Incidence not known Some side effects of hydroxychloroquine may occur that usually do not need medical attention. Chloroquine and non-small cell lung cancer Plaquenil and sun allergy Our Plaquenil hydroxychloroquine Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication. This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. This means that the side effects of Plaquenil are mild and infrequent compared with its potential benefits. As with any medication, allergic reactions including skin rashes and non-allergic reactions can occur. The side effect that is of greatest concern is retinal toxicity. Plaquenil is a prescription medication approved by the Food and Drug Administration FDA to treat inflammation associated with lupus in people whose symptoms have not responded to drugs with lower risk for side effects. Plaquenil is also known by its drug name, Hydroxychloroquine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. These side effects may go away during treatment as your body adjusts to the medicine. Lupus medication plaquenil side effects Stomach cramps from Plaquenil - what to do? Lupus Forums at., The Risk of Retinal Toxicity with Plaquenil Methotrexate hydroxychloroquine rheumatoid arthritisWhy does aralen cause personality changesPlaquenil for amyopathic dermatomyositisHydroxychloroquine and imodium If you are taking Plaquenil to treat an inflammatory condition or malaria, you should be aware of the side effects that may occur to your eyes and vision. Plaquenil hydroxychloroquine is in a class of drugs called disease-modifying anti-rheumatic drugs, which are used to decrease inflammation, pain and joint damage. Plaquenil Side Effects on Your Eyes and Vision. Plaquenil Hydroxychloroquine MyLupusTeam. Plaquenil side effects" Lupus Community - Support Group. Hydroxychloroquine Plaquenil is used to treat malaria, lupus, and rheumatoid arthritis. Learn about side effects, warnings, dosage, and more. Other rare side effects include changes in skin pigmentation and cardiomyopathy diseases of the heart muscle. The future. Hydroxychloroquine was previously prescribed only for people whose lupus disease activity was mild in its course; if the lupus became active, steroids or immunosuppressants would be prescribed instead. It may take a few weeks or months for Cytoxan to improve your lupus symptoms. The side effects of Cytoxan range from mild to severe and may be worse when the medication is taken in tablet form. Side effects include nausea and vomiting, which can sometimes be prevented with an anti-nausea medication such as ondansetron Zofran.