Additionally, another exception occurred while executing the custom error page for the first exception. Applies to hydroxychloroquine: oral tablet Along with its needed effects, hydroxychloroquine (the active ingredient contained in Plaquenil) may cause some unwanted effects. Plaquenil immunocompromised Uses for hydroxychloroquine Is doxycycline and plaquenil similar drugs Plaquenil toxicity isn’t even in the top 10, or the top 100” if you’re looking at incidence, he said. “It’s a pretty rare thing.” Nevertheless, he urged doctors to master the Academy’s new guidelines, because the effects from chloroquine and hydroxychloroquine, when they do occur, are severe and often irreversible. In addition to retinal thinning and outer retinal degeneration, HCQ appears to induce choroidal thinning, particularly at the level of the choriocapillaris. These findings will broaden our understanding on ocular toxicity of HCQ and clinical evaluation for the toxicity. Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. Stop taking hydroxychloroquine 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. Call your doctor at once if you have 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. Although not all of these side effects may occur, if they do occur they may need medical attention. Retinal thinning in plaquenil toxicity The Risk of Retinal Toxicity with Plaquenil - Sjogren's, Choroidal Thinning Associated With Hydroxychloroquine Retinopathy. Plaquenil peripheral neuropathyPlaquenil and light sensitivity Selective Thinning of the Perifoveal Inner Retina as an Early Sign of Hydroxychloroquine Retinal Toxicity Sirichai Pasadhika, 1 Gerald A Fishman, 1 Dongseok Choi, 2 and Mahnaz Shahidi 1 1 Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, IL Selective Thinning of the Perifoveal Inner Retina as an Early.. Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses. Despite Plaquenil dosing recommendations, retinal toxicity.. This article is from June 2011 and may contain outdated material. Download PDF. Many systemic medications may cause retinal toxicity. One such commonly used medication for dermatologic and rheumatologic inflammatory conditions is hydroxychloroquine Plaquenil, a chloroquine derivative. Although the incidence of macular toxicity is infrequent with Plaquenil use at a dosage of 200mg or 400mg q.d. its visual impact can be devastating. 2,3. The associated classic retinal toxicity is described as a bull’s eye maculopathy ring of depigmented retinal pigment epithelium that spares the foveal area. Nov 01, 2015 Typically, cases of HCQ toxicity may demonstrate parafoveal thinning and loss of the ellipsoid zone, with preservation of the foveal architecture — creating the “flying saucer” shape Figures 1 and 2. Advanced cases may present with loss of the ellipsoid zone in the foveal area and also widespread diffuse thinning of the outer retinal.