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. Sandoz plaquenil Hydroxychloroquine 200 mg tablet inflammation Dosage levels that can cause toxicity 6.5 mg/kg Hydroxychloroquine Plaquenil19 3 mg/kg Chloroquine Arlen With Plaquenil Plaquenil is manufactured in only a 200 mg tablet The typical dosage is either 200 or 400 mg per day 200 mg daily puts anyone under 68 pounds at risk1 Of 2361 patients who had taken hydroxychloroquine continuously for at least 5 years and who had 10-2 visual fields or SD-OCT, 177 7.5% showed clear signs of retinal toxicity. None of the primary medical indications for hydroxychloroquine therapy were significantly associated with an increased prevalence of retinal toxicity. SD-OCT showed loss of the parafoveal inner/outer segment junction, thinning of the parafoveal outer nuclear layer, and a loss of the normal foveal depression, which is characteristic for hydroxychloroquine retinal toxicity Figure 3. 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. Sd-oct and plaquenil toxicity Rx Side Effects New Plaquenil Guidelines and More., Toxic Retinopathy With Hydroxychloroquine Therapy Plaquenil assistance programPlaquenil toxicity vfAralen malariaNew plaquenil dosing guidelinesDoes plaquenil cause bleeding Aug 06, 2014 By generating high-resolution, cross-sectional images of the retina in vivo, SD-OCT may detect significant structural alterations prior to development of visible HCQ retinopathy. Previously described OCT findings in HCQ toxicity include loss of the external limiting membrane, disruption of the outer ellipsoid zone. Multimodal Imaging in Plaquenil Toxicity. Hydroxychloroquine Plaquenil Toxicity and Recommendations.. Is Damage Still Occurring? - Review of Optometry. Revised Recommendations on Screening for Plaquenil Toxicity • SD-OCT can show localized thinning of the parafovealretinal layers confirming toxicity – May be unable to see with TD-OCT – Changes maybe visible prior to VF defects • FAF may reveal subtle RPE defects with reduced autofluorescence • MF-ERG can objectively document localized. Because early toxicity changes can be revealed on SD-OCT, it is prudent to perform a baseline screening of patients taking Plaquenil. Multifocal ERG has the ability to detect early macular dysfunction, so it should be included as part of baseline screening. Note This document contains side effect information about hydroxychloroquine. Some of the dosage forms listed on this page may not apply to the brand name Plaquenil. For the Consumer. Applies to hydroxychloroquine oral tablet. Along with its needed effects, hydroxychloroquine the active ingredient contained in Plaquenil may cause some.