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. Is chloroquine available over the counter Serious toxicity of hydroxychloroquin OCT Interpretation in Retinal Disease. 54 year old woman taking Plaquenil Ganglion Cell Complex The retinal ganglion cell and inner plexiform complex is more sensitive to the demyelination process of MS and can be a prognostic marker in the expected quality of life and visual Dr. Marmor’s research team also recommended that screening should be performed within the first year of initiating therapy, and then annually after five years of Plaquenil use. The risk for retinal toxicity begins once the patient has used Plaquenil for five to seven years and/or has taken a cumulative dose of more than 1,000g. Repeat 10-2 HVF testing demonstrated the dense paracentral scotomas. 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. Macular oct for plaquenil Multimodal Imaging in Plaquenil Toxicity, Pause the Plaquenil? Methylprednisolone and hydroxychloroquineLupus medication hydroxychloroquine side effectsPlaquenil who takes itChloroquine function in lysosome Lyons emphasizes the importance of annual screening and says that, although annual screening is recommended for everyone taking Plaquenil, it is imperative for people who have been taking the medication for more than 10 years, who have a higher incidence of retinal toxicity. Plaquenil-induced toxicity usually will not occur before five years of. Protecting your eyesight when taking Plaquenil Lupus.. Hydroxychloroquine Plaquenil Toxicity and Recommendations.. Despite Plaquenil dosing recommendations, retinal toxicity.. 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 1. It is now considered for new disease applications in diabetes, heart disease and adjunct cancer therapies 2. Plaquenil-induced maculopathy is a form of retinal toxicity that is associated with long-term use of of the anti-inflammatory medication plaquenil. The drug-induced maculopathy is associated with the following risk factors Cumulative dose level of 1,000 grams of plaquenil; Patients with existing retinal or macular disease; Patients over the. 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 unwanted effects.