One such commonly used medication for dermatologic and rheumatologic inflammatory conditions is hydroxychloroquine (Plaquenil), a chloroquine derivative. It is used to treat many diseases including malaria, rheumatoid arthritis and systemic lupus erythematosus. Atorvaquone vs chloroquine Chloroquine long qt When to switch from plaquenil to methotrexate What is hydroxychloroquine 400 mg used for May 03, 2010 I have been on plaquenil for a while now and have started to have blurred vision. I have been to my eye doc. twice and all tests are normal. Should I continue to take it, I know that it can cause eye problems but my doc. says that it is very rare. Feb 19, 2020 What is hydroxychloroquine Plaquenil, Plaquenil Sulfate, Quineprox? Hydroxychloroquine is used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Taking Plaquenil long-term or at high doses may cause irreversible damage to the retina of your eye. Stop taking Plaquenil and call your doctor at once if you have trouble focusing, if you see light streaks or flashes in your vision, or if you notice any swelling or color changes in your eyes. It is imperative that patients and physicians are aware of and watch for this drug’s ocular side effects. Retinal toxicity from hydroxychloroquine is rare, but even if the medication is discontinued, vision loss may be irreversible and may continue to progress. Plaquenil and vision Hydroxychloroquine Side Effects, Dosage, Uses, and More, Plaquenil Hydroxychloroquine Side effects, Images, Uses. Hydroxychloroquine and mood swingsHydroxychloroquine sulfate vs hydroxychloroquineWhat is the difference between chloroquine and chloroquine phosphateAllergic to plaquenilDoes plaquenil work right away 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. Plaquenil Side Effects Common, Severe, Long Term -. Plaquenil Uses, Dosage & Side Effects -. Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses. Plaquenil toxicity is typically asymptomatic in early stages, but over time can lead to severe vision loss and retinal damage. 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. When should you see an ophthalmologist when taking Plaquenil? If you take Plaquenil, here is when to see an ophthalmologist Before Plaquenil treatment begins. You will have a “baseline” eye exam. This measures the health of your eyes and looks for retinal or macular disease. Once a year while taking Plaquenil.