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. Plaquenil drug nutrient interactions Plaquenil and pvc Biaxin and plaquenil lyme disease Allergic to plaquenil Symptoms of Plaquenil toxicity are similar to other macular problems and may include Decreased fine vision or difficulty reading. Changes in Color vision. Missing Spots or shadows near the center of the vision. OCT scan top of normal macula compared to Plaquenil Toxicity bottom with loss of the outer retinal tissue around the macular center red boxes View more retina images at Retina Rocks, the world’s largest online multimedia retina image library and bibliography repository. Plaquenil toxicity first affects small areas of the retina between 5° and 15° from the fovea. Figures 2 and 3 show three patients at different stages of toxicity. Figure 2 bottom right shows a color display of normal mfERGs. The amplitude of the mathematically derived b-wave of the mfERG is displayed in a color scale. 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. Oct appearance of plaquenil toxicity Multimodal Imaging in Plaquenil Toxicity, Plaquenil Toxicity - Bennett & Bloom Eye Centers Hydroxychloroquine in pregnancyDoes plaquenil cause high cholesterolChloroquine clathrinCan you abruptly stop hydroxychloroquineSide effects plaquenil 200 mg Several risk factors may increase the likelihood of retinal toxicity from Plaquenil such as, age of greater than 60 years, daily dose more than 6.5 mg/kg; use of the drug more than 5 years, obesity, preexisting retinal disease and, renal or liver failure. The Risk of Retinal Toxicity with Plaquenil - Sjogren's. Retina Today - Evaluating Hydroxychloroquine Toxicity With Multifocal.. Hydroxychloroquine Plaquenil Toxicity and Recommendations.. Of course the aim is avoid drug related retinal toxicity, which on ophthalmic examination, appears as the classic Bull’s eye change affecting the macula. Once retinal toxicity from hydroxychloroquine occurs, it is thought that the retinal changes are permanent and the disease can progress even if hydroxychloroquine is stopped for 1 to 3 years. 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. Although not all of these side effects may occur, if they do occur they may need medical attention. On examination, a telltale sign of hydroxychloroquine toxicity is a bilateral change in the retinal pigment epithelium of the macula that gives the commonly described appearance of a bull’s-eye. This is a late finding, however, and too late for screening to be useful.