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 lichen planus Plaquenil and coq10 Chloroquine phosphate dosage for adults Bull's-eye maculopathy due to hydroxychloroquine toxicity. Contributor Jesse Vislisel, MD Photographer Randy Verdick, FOPS September 9, 2013. This patient took hydroxychloroquine for rheumatoid arthritis and her vision dropped to 20/300 as a result of the retinal toxicity. By 2/2010 things were so dim I could not see to shop in stores. I quit taking Plaquenil but the DR still said no toxicity. My eyes continued to get worst. In tears I went back in July he finally sent me to a retina specialist. You don't have to have Bulls eye damage to have toxicity Over weight women over 60 should beware of taking Plaquenil. 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. 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. Eye toxicity hydroxychloroquine Chloroquine and HydroxyChloroquine Toxicity ROQUE Eye., Has anyone experienced plaquenil toxicity with damage to eyes? Hydroxychloroquine test for eyesHydroxychloroquine sulfate 200 mg dosagePlaquenil cost assistance Eye damage due to Plaquenil is not common,” he says. “Rarely will anybody who has good vision and minimal symptoms develop loss of central vision or ability to read if annual screening is done and visual are symptoms reported as soon as they occur so the medication can be stopped if toxicity occurs. Protecting your eyesight when taking Plaquenil Lupus.. Plaquenil Side Effects Common, Severe, Long Term -. Hydroxychloroquine Ocular Toxicity Lessons Learned The.. Of cells at the back of the eye. This is known as retinal toxicity or retinopathy. Overall, around seven patients out of every 100 taking hydroxychloroquine for more than five years may develop retinopathy that can be detected with specialised tests. The risk is much higher in patients who have been taking the drug for 20 years or more. In these Plaquenil hydroxychloroquine is a medicine commonly used to treat patients with systemic lupus erythematosus and rheumatoid arthritis. After prolonged use, it can sometimes damage the macula and cause central vision loss. The number of patients taking hydroxychloroquine is increasing and monitoring patients on therapy is challenging in the currently over stretched hospital eye service. A recent paper estimates.