Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Hydroxychloroquine for rheumatoid arthritis reviews Maximum dose of plaquenil Plaquenil vasculitis Nov 09, 2018 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. Rarely, hydroxychloroquine can affect the bone marrow leading to reduced white blood cells leukopenia or platelets thrombocytopenia and abnormal red blood cells. Rare but potentially serious eye toxicity can occur. This toxicity affects a part of the eye called the retina and can lead to color blindness and even loss of vision. An. Visual changes and loss of vision are potential hydroxychloroquine side effects, although they most commonly occur in individuals who have taken high doses of hydroxychloroquine for long periods. Physicians will generally recommend an eye exam every six months for patients taking hydroxychloroquine long-term. Hydroxychloroquine may also be used for purposes not listed in this medication guide. Hydroxychloroquine is also used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Does hydroxychloroquine cause vision loss Plaquenil Side Effects Common, Severe, Long Term -, Hydroxychloroquine Plaquenil Side Effects & Dosage for Malaria Chloroquine medscapeCadaver chloroquine how does it work Jan 05, 2020 Hydroxychloroquine Plaquenil and chloroquine cause ocular toxicity to various parts of the eye such as the cornea, ciliary body, and retina. Chloroquine can also induce cataract formation; however, no reports of hydroxychloroquine and cataract have been reported. This article focuses upon hydroxychloroquine retinopathy. Disease Hydroxychloroquine toxicity - EyeWiki. Hydroxychloroquine Plaquenil Success, Reviews and Side Effects. Hydroxychloroquine Oral Uses, Side Effects, Interactions.. This means many people taking Plaquenil for RA are taking a dose of 400mg a day or higher. Pigment deposits in the retina can cause vision changes, according to Steven Ofner, M. D. of Eugene Oregon Eye Care. Signs of retinal damage include blurry or distorted vision, flashes of light or floaters, or loss of night vision. Plaquenil is the brand name for the prescription drug hydroxychloroquine. It's used to treat and prevent malaria infection, and to reduce symptoms and progression of autoimmune diseases such as lupus, rheumatoid arthritis, and others. Malaria is spread by mosquitoes. Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. Stop taking this medicine 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.