Chloroquine toxicity of retina

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  1. Florin New Member

    Chloroquine toxicity of retina

    While many of these can be grouped by anatomic location or type of toxicity, there are also individual medications with characteristic effects. In this article, we will describe several major categories of pharmacologic retinal toxicity and discuss examples of individual medications.

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    Liver disease, renal insufficiency, obesity due to improper dosing, older age, and other retinal diseases increase the risk of retinal toxicity. Chloroquine may cause retinal damage by binding at the level of the retinal pigment epithelium RPE, where it accumulates and remains long after discontinuation of the drug. 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. Jul 30, 2019 Applies to chloroquine compounding powder, injectable solution, oral tablet. Ocular. Maculopathy and macular degeneration may be irreversible. Irreversible retinal damage has been reported in patients receiving long-term or high-dose 4-aminoquinoline therapy. Retinopathy has been reported as dose related.

    Both medications have been shown to bind melanin and to concentrate in the iris, ciliary body and retinal pigment epithelium, altering normal physiologic function. Chloroquine (Aralen) and hydroxychloroquine (Plaquenil) are traditional antimalarial agents now used in the treatment of autoimmune diseases, including rheumatoid arthritis (RA) and systemic lupus erythematosus (SLE).

    Chloroquine toxicity of retina

    Chloroquine retinal toxicity The University of Iowa., Chloroquine retinopathy - Wikipedia

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  7. 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.

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    Methemoglobinemia has also been reported from chloroquine toxicity, and retinal toxicity is a side-effect of long-term use. Q5. Would you decontaminate this child? Answer and interpretation. No – not yet. Decontamination should only be performed when the benefits outweigh the risks. Uploaded on Feb 14, 2013. Last modified by Caroline Bozell on Apr 5, 2013.; Rating Appears in Miscellaneous Condition/keywords chloroquine toxicity, bull's eye maculopathy, drug toxicity Many systemic medications may cause retinal toxicity. 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.

  8. XenForo Moderator

    500 mg chloroquine phosphate (300 mg base) orally on the same day each week Comments: -If possible, suppressive therapy should start 2 weeks prior to exposure; if unable to start 2 weeks before exposure, an initial loading dose of 1 g chloroquine phosphate (600 mg base) may be taken orally in 2 divided doses, 6 hours apart. Chloroquine Phosphate 500mg Tablets - HealthWarehouse Chloroquine Dosage Guide with Precautions - Chloroquine MedlinePlus Drug Information
  9. Natalie Moderator

    Mechanism of action of hydroxychloroquine as an antirheumatic. Mechanism of action of hydroxychloroquine as an antirheumatic drug. Fox RI1. Author information 1Department of Rheumatology, Scripps Clinic and Research Foundation, La Jolla, CA 92037. The antimalarial agents chloroquine and hydroxychloroquine have been used widely for the treatment of rheumatoid arthritis and systemic lupus erythematosus.

    Chloroquine - Wikipedia
  10. bigtrouble Guest

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