Hydroxychloroquine is available as the brand-name drug Plaquenil. Generic drugs usually cost less than the brand-name version. Hydroxychloroquine may be used as part of a combination therapy. Visual fields in chloroquine Hydroxychloroquine sulfate vs plaquenil Common side effects may include headache, dizziness, ringing in your ears; nausea, vomiting, stomach pain; loss of appetite, weight loss; mood changes, feeling nervous or irritable; skin rash or itching; or. hair loss. Malignant melanoma is found among people who take Plaquenil, especially for people who are female, 60+ old also take medication Methotrexate, and have Prostate cancer. This study is created by eHealthMe based on reports of 57,706 people who have side effects when taking Plaquenil from Food and Drug Administration FDA, and is updated regularly. Hydroxychloroquine Plaquenil is used to treat malaria, lupus, and rheumatoid arthritis. Learn about side effects, warnings, dosage, and more. Hydroxychloroquine is used to treat lupus erythematosus and rheumatoid arthritis. It isn’t fully understood how this drug works to treat lupus erythematosus or rheumatoid arthritis. That means you may need to take it with other drugs. It treats malaria by killing the parasites that cause the disease. Skin cancer side effect of plaquenil Plaquenil Hydroxychloroquine - Side Effects, Dosage., Will you have Malignant melanoma with Plaquenil - eHealthMe How long does it take for chloroquine to workHydroxychloroquine 200mg tablets coupon Long-Term Side Effects of Plaquenil for Rheumatoid Arthritis. 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. Long-Term Side Effects of Plaquenil for Rheumatoid.. Hydroxychloroquine Side Effects, Dosage, Uses, and More. Rx Side Effects New Plaquenil Guidelines and More.. Note This document contains side effect information about hydroxychloroquine. Some of the dosage forms listed on this page may not apply to the brand name Plaquenil. For the Consumer. Applies to hydroxychloroquine oral tablet. Along with its needed effects, hydroxychloroquine the active ingredient contained in Plaquenil may cause some unwanted effects. Once we determined that Plaquenil was worsening my psorasis to affect my nails and tendon inserts, I came off it for good. Skin rashes occasionally develop and hydroxychloroquine may make you more sensitive to the sun, so it is advisable to use the usual precautions of sunscreens and a hat if you are in the sun. What are the most common side effects of treatment with Plaquenil? Abdominal cramps; Blurred vision; Diarrhea; Headache; Increased sun sensitivity; Itching; Loss of appetite; Nausea or vomiting; Rash; This is not a complete list of side effects. Some patients may experience other side effects that are not listed here.