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 icd 9 Plaquenil and plaque in arteries Plaquenil-induced toxic maculopathy was first described in 1967. Because the retinal damage from plaquenil is usually irreversible if present for a more prolonged period of time, it is important to detect the disease in its early stages. Apr 20, 2011 Problems with Plaquenil Use Toxic maculopathy associated with chloroquine use was first documented in the literature five decades ago.1 In the United States, Plaquenil––an analog to chloroquine––is used to treat a variety of conditions, including rheumatoid arthritis, lupus and several distinct inflammatory disorders. Hydroxychloroquine Plaquenil; HCQ has been an important and effective drug for the treatment of lupus erythematosus and related autoimmune and inflammatory diseases for half a century, although its potential to cause retinal damage continues to raise concern among rheumatologists and ophthalmologists. 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 plaquenil Plaquenil Oral Uses, Side Effects, Interactions, Pictures., New Plaquenil Guidelines - Plaquenil for rheumatoid arthritis painPlaquenil pulmonarySide effect plaquenil rash A risk factor for Plaquenil hydroxychloroquine retinotoxicity is a daily dose that exceeds 5.0 mg of drug per kg of body weight. The tool on the right simply calculates this threshold based on a ppatient’s real body weight. It’s important to understand that the daily dose is only one risk factor for plaquenil retinotoxicity. Plaquenil Risk Calculators. Hydroxychloroquine Retinopathy Still Alive and Well - The.. Plaquenil Hydroxychloroquine - Side Effects, Dosage.. A cookie-cutter approach to dosing Plaquenil hydroxychloroquine, Sanofi-Aventis, an anti-malarial drug that has been used as a treatment for systemic lupus erythematosus and rheumatoid arthritis. The study was a Kaiser Permanente retrospective case-control study that examined 2361 patients who had used hydroxychloroquine continuously for at least 5 years according to pharmacy records and who were evaluated with visual field testing or spectral-domain optical coherence tomography. Hydroxychloroquine sulfate is a colorless crystalline solid, soluble in water to at least 20 percent; chemically the drug is 2-4-7-Chloro-4-quinolylaminopentylethylamino ethanol sulfate 11. PLAQUENIL hydroxychloroquine sulfate tablets contain 200 mg hydroxychloroquine sulfate, equivalent to 155 mg base, and are for oral administration.