Most importantly, you help support continued development of this site. The majority of cases of retinotoxicity have occurred in patients that have had a cumulative dose exceeding 1000g of hydroxychloriquine (Plaquenil). This level is reached in about 7 years with the most common daily dose of Plaquenil, 400 mg/day (200 bid). Hydroxychloroquine high dose Plaquenil for arthritis pain Can plaquenil be used for ulcerative colitis Hydroxychloroquine is an effective and relatively safe drug that can cause retinal toxicity in a minority of patients. Early diagnosis is important to stop treatment and prevent possible further damage. Nevertheless, in many cases, screening tests are performed too early and too often, causing an unjustified burden on patients and. It’s generally safe at normal doses, but higher amounts can damage the retina, the light-sensitive tissue at the back of the eye, and result in partial or complete blindness. Hydroxychloroquine-related eye problems were once considered rare, but better detection methods now show that they occur in about 7 percent of patients. Retinal toxicity of Plaquenil may manifest itself with subtle disturbances of the retinal pigment epithelium which may eventually lead to complete destruction of the macula in the form of bull’s-eye maculopathy. Several risk factors may increase the likelihood of retinal toxicity from Plaquenil such as. It now solely uses real body weight (rather than ideal body weight) based on new recommendations from a 2014 study (1). Disclaimer: This tool is designed to help eye care professionals better understand the risk the of retinotoxicity from hydroxychloroquine. Please note: This calculator was modified in 9/2015. Plaquenil retinal damage Hydroxychloroquine Plaquenil Toxicity and Recommendations for Screening, Wrong Hydroxychloroquine Dose Is Common, Putting Eyes at Risk. Chloroquine and liver cancerCan plaquenil cause weight gainIs the prednisonse or plaquenil causing hair loss Screening requires the use of tests, such as 10–2 visual fields and SD-OCT and other modern techniques, such as autofluorescence imaging and multifocal electroretinography, to demonstrate early retinal damage.” 1 Melles & Marmor. The Risk of Toxic Retinopathy in Patients on Long-term Hydroxychloroquine Therapy. Plaquenil Risk Calculators. The Risk of Retinal Toxicity with Plaquenil - Sjogren's. Long-Term Side Effects of Plaquenil for Rheumatoid.. Hydroxychloroquine sulfate HCQ, Plaquenil is an analogue of chloroquine CQ, an antimalarial agent, used for the treatment of systemic lupus erythematosus, rheumatoid arthritis and other autoimmune disorders. Its use has been associated with severe retinal toxicity, requiring a discontinuation of therapy. Hydroxychloroquine, sold under the brand name Plaquenil Sanofi-Aventis, is an antimalarial drug that has gained widespread use in treating various autoimmune diseases, including systemic lupus erythematosus and rheumatoid arthritis. 1 By some estimates, more than 150,000 patients are on long-term therapy with this medication in America alone. 2 Retinal toxicity associated with HCQ use is. Plaquenil is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Important information. Taking Plaquenil long-term or at high doses may cause irreversible damage to the retina of your eye.