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. Hydroxychloroquine and slurred speech Tafenoquine chloroquine Hydroxychloroquine tablets ip Hydroxychloroquine Toxicity Screening Is Key. Hydroxychloroquine Plaquenil is a disease-modifying antirheumatic drug that is commonly used to reduce arthritic pain and swelling. Signs and symptoms. “The association of Plaquenil therapy with macular toxicity is well established,” said Michael F. Marmor, MD, at the Byers Eye Institute. Although it is considered rare, retinal toxicity from the intake of Plaquenil can be irreversible even if the drug is discontinued 2, 3. What is Plaquenil Toxicity? The toxicity resulting from the intake of Plaquenil is due to its affinity for melanin-containing structures in the body. Plaquenil, widely used to treat lupus, rheumatoid arthritis and other inflammatory and dermatologic conditions, is very effective, and “the risk of toxicity in the first five years for someone without special risk factors is very low,” Dr. Marmor said. However, risk increases with duration of use. 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. Is plaquenil toxicity reversible Chloroquine And Hydroxychloroquine Toxicity - StatPearls., Plaquenil Toxicity - Symptoms, Treatment, Risk Factors. Plaquenil immune systemFatigue plaquenil Plaquenil is indicated for the treatment of uncomplicated malaria due to P. falciparum, P. malariae, P. ovale, and P. vivax. Plaquenil is indicated for the prophylaxis of malaria in geographic areas where chloroquine resistance is not reported. Limitations of Use in Malaria • Plaquenil is not recommended for the treatment of complicated malaria. Plaquenil - FDA prescribing information, side effects and uses. Rx Side Effects New Plaquenil Guidelines and More.. Taking Plaquenil for Rheumatoid Arthritis. Hydroxychloroquine HCQ, sold under the brand name Plaquenil among others, is a medication used for the prevention and treatment of certain types of malaria. Specifically it is used for chloroquine-sensitive malaria. Other uses include treatment of rheumatoid arthritis, lupus, and porphyria cutanea tarda. It is taken by mouth. If you are taking Plaquenil to treat an inflammatory condition or malaria, you should be aware of the side effects that may occur to your eyes and vision. Plaquenil hydroxychloroquine is in a class of drugs called disease-modifying anti-rheumatic drugs, which are used to decrease inflammation, pain and joint damage. The reader's question and comment prompted me to do a little more research on the question of whether plaquenil toxicity was reversible which led me to the results of this study, which was published in JAMA Opthamology Jan 2011-- the same month and year as the Sjogren's Syndrome Foundation article was published. The study authors concluded "Sustained visual improvement following cessation of drug therapy was not observed in any patient in this series, and our identification of 6 patients.