Chloroquine has been extensively used in mass drug administrations, which may have contributed to the emergence and spread of resistance. It is recommended to check if chloroquine is still effective in the region prior to using it. Hydroxychloroquine arthritis Does hydroxychloroquine upset your stomach Alternative to plaquenil for lupus Chloroquine and hydroxychloroquine both belong to the quinolone family and share similar clinical indications and side effects, including retinal toxicity. Chloroquine-induced retinal toxicity was first described in 1959 and the retinal toxic effects of hydroxychloroquine were later described in 1967 3, 4. To reduce the incidence of chloroquine and hydroxychloroquine toxicity, health care providers HCP's that prescribe these medications and those that screen for ocular toxicity have developed clear dosing and screening protocols that have reduced the risk of end-stage disease; bull's eye maculopathy and central vision loss Level I. 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 eye toxicity limits long-term use of the drugs. The Centers for Disease Control and Prevention recommend against treatment of malaria with chloroquine alone due to more effective combinations. In areas where resistance is present, other antimalarials, such as mefloquine or atovaquone, may be used instead. Toxicity of chloroquine Chloroquine toxicity -, Chloroquine And Hydroxychloroquine Toxicity - StatPearls. Plaquenil retinal toxicity doseSarcoidosis treatment hydroxychloroquine 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. Hydroxychloroquine DermNet NZ. Chloroquine retinopathy - Wikipedia. A Coronavirus Question Chloroquine After Fluoroquinolones? - My Quin Story. Chloroquine is a 9-aminoquinoline known since 1934. Apart from its well-known antimalarial effects, the drug has interesting biochemical properties that might be applied against some viral infections. Chloroquine exerts direct antiviral effects, inhibiting pH-dependent steps of the replication of several viruses including members of the flaviviruses, retroviruses, and coronaviruses. Its best. Chloroquine CQ is used to prevent and treat malaria and amebiasis, while hydroxychloroquine HCQ, a less toxic metabolite of chloroquine, is used to treat rheumatic diseases such as systemic lupus erythematosus SLE, rheumatoid arthritis RA, juvenile idiopathic arthritis JIA and Sjogren's syndrome. Review of side effects and toxicity of chloroquine / by H. Weniger. View/ Open. Effect of four different types of single-dose treatment with chloroquine and with chloroquine and pyrimethamine on Plasmodium falciparum infections in a semi-immune population in northern Nigeria.