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. Side effects of taking plaquenil Hydroxychloroquine sulphate pregnancy Bull's eye maculopathy hydroxychloroquine Serious side effects have been reported with Plaquenil including the following Heart failure. Plaquenil can cause weakening of the heart muscle, resulting in heart your healthcare provider right away if you have some or all of the following symptoms of heart failure. breathlessness; swelling of the legs; irregular heart beat; fatigue; dizziness Feb 19, 2020 As PLAQUENIL may enhance the effects of a hypoglycemic treatment, a decrease in doses of insulin or antidiabetic drugs may be required. Drugs That Prolong QT Interval And Other Arrhythmogenic Drugs. PLAQUENIL prolongs the QT interval and should not be administered with other drugs that have the potential to induce cardiac arrhythmias. 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. 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. Dangers of plaquenil Plaquenil oral Reviews and User Ratings Effectiveness, Ease., Plaquenil Hydroxychloroquine Uses, Dosage, Side Effects. Plaquenil side effects heartburnReducing inflammation without plaquenilCardiomyopathy caused by plaquenilHydroxychloroquine contraindicated in pregnancy What Are Side Effects of Plaquenil? nausea, vomiting, stomach pain or cramps, loss of appetite, weight loss, diarrhea, dizziness, spinning sensation, headache, ringing in your ears, Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses. Long-Term Side Effects of Plaquenil for Rheumatoid.. Plaquenil Hydroxychloroquine - Side Effects, Dosage.. Jan 01, 2020 Insulin or antidiabetic drugs As Plaquenil may enhance the effects of a hypoglycemic treatment, a decrease in doses of insulin or antidiabetic drugs may be required. Drugs that prolong QT interval and other arrhythmogenic drugs Plaquenil prolongs the QT interval and should not be administered with other drugs that have the potential to induce cardiac arrhythmias. 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. Plaquenil is used in the treatment of sarcoidosis but its main use is in the treatment of malaria. One of the side effects of taking the drug is that it affects eye sight, and eye tests, especially field of vision tests need to be done every six months. For the four years that I took the drug.