Plaquenil 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. Hydroxychloroquine dosage lupus Hydroxychloroquine mechanism Hydroxychloroquine screening test Factors for toxicity related to hydroxychloroquine use. BACKGROUND 1 Hydroxychloroquine HCQ, brand name Plaquenil is commonly used for the long-term 2 management of a variety of chronic rheumatic diseases including systemic lupus erythematosus 3 and rheumatoid arthritis. A range of potential toxicities related to HCQ use have been reported 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. This medicine is not effective against all strains of malaria. Plaquenil toxicity pdf PLAQUENIL®, Retinal toxicity associated with chronic exposure to. Does plaquenil compromise the immune systemWhat happens when you take plaquenil with out having lupusCan you donate blood if you take plaquenilChloroquine toxicity of retina Plaquenil is known to show retinal toxicity which can effect the vision and it is imperative to be able to spot any changes and to contact the patient's rheumatologist to notify them about the changes. The presentation goes over how to spot and what testing to perform to make sure there is no retinal toxicity. Plaquenil Toxicity Screening Macula and Retina Institute c.. Multimodal Imaging in Plaquenil Toxicity. Retinal toxicity in long term hydroxychloroquine treatment.. Diagnosis Hydroxychloroquine-induced retinal toxicity Discussion. Chloroquine CQ and hydroxychloroquine Plaquenil HCQ have been used for many years, initially for the treatment of malaria but now more commonly for the treatment of inflammatory diseases such as rheumatoid arthritis and lupus 1is now considered for new disease applications in diabetes, heart disease and adjunct. 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. Hydroxychloroquine Plaquenil is considered a disease-modifying anti-rheumatic drug DMARD. It can decrease the pain and swelling of arthritis. It may prevent joint damage and reduce the risk of long-term disability. Hydroxychloroquine is in a class of medications that was first used to prevent and treat malaria.