Additionally, another exception occurred while executing the custom error page for the first exception. Chloroquine and hydroxychloroquine belong to the quinolone family. Plaquenil and other medications Plaquenil loss of appetite Plaquenil related eye complications are not common. Plaquenil can produce pigment changes in the macula of the retina. The retina is the part of the back of the eye that you see with. The macula is the central part of the retina responsible for central fine vision. With Plaquenil related toxicity, the pigment in the macula can change and alter. Hydroxychloroquine can cause irreversible retinal toxicity, resulting in bilateral bull’s eye retinopathy, but is regarded as less toxic to the retina than chloroquine and it does not cause the corneal deposits seen with chloroquine therapy. DISCUSSION Membranous cytoplasmic bodies, or "myeloid" bodies, have been found in the ocular and other tissues of various experimental animals following the administration of toxic amounts of chloroquine. 3 " 15 Within the eye of these experimental ani mals MCBs have been reported in all cells of the retina, the most prominent being in the. The image below depicts hydroxychloroquine retinopathy. Fluorescein angiogram of left macula in patient with hydroxychloroquine retinopathy. Although their therapeutic and toxic doses differ, they are related drugs with similar clinical indications for use and similar manifestations of retinal toxicity. Chloroquine toxicity in eye Chloroquine and HydroxyChloroquine Toxicity ROQUE Eye., Hydroxychloroquine DermNet NZ How to code long term use plaquenilPlaquenil is taken with or without foodHow long for plaquenil to take effectMethotrexate and plaquenil for psoriatic arthritis Sep 15, 2014 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. Retinal toxicity associated with chronic exposure to.. Chloroquine Toxicity in the Human Eye Histopathologic.. Hydroxychloroquine Plaquenil Toxicity and Recommendations.. The actual incidence of retinal toxicity from hydroxychloroquine is difficult to pin down because there is usually a long time between being started on the drug and the start of any identifiable retinal toxicity. The overall rate of probable retinal toxicity is in the range of 1 of every 200 people treated. Chloroquine retinopathy, is a form of toxic retinopathy damage of the retina caused by the drugs chloroquine or hydroxychloroquine, which are sometimes used in the treatment of autoimmune disorders such as rheumatoid arthritis and systemic lupus erythematosus. This eye toxicity limits long-term use of the drugs. Macular toxicity is related to the total cumulative dose rather than the daily dose. Regular eye screening, even in the absence of visual symptoms, is recommended to begin when either of these risk factors occurs. Toxicity from hydroxychloroquine may be seen in two distinct areas of the eye the cornea and the macula.