Retinal toxicity from chloroquine apre-19 cells

Discussion in 'Canada Drugs Online' started by iamask, 05-Mar-2020.

  1. leonidiuskm Guest

    Retinal toxicity from chloroquine apre-19 cells


    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.

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    Recommendations on Screening for Chloroquine and Hydroxychloroquine Retinopathy Retinal toxicity from chloroquine CQ and its analogue, hydroxychloroquine HCQ, has been recognized for many years. Chloroquine toxicity remains a problem in many parts of the world, but is seen less frequently in the United States where the drug largely has been replaced by HCQ. Jun 11, 2009 Retinal toxicity has been shown in patients taking greater than 3 mg/kg/day of chloroquine or 6.5 mg/kg/day of hydroxychloroquine. While most cases of toxicity have been reported for chloroquine, hydroxychloroquine has supplanted it as the more commonly used treatment agent for both RA and SLE. 2 It has been detected in the plasma, red blood cells, and urine of patients 5 years after their last known ingestion. 27 This prolonged presence may account for the rare cases of delayed onset of chloroquine retinopathy seen up to 7 years or longer after discontinuation. 28, 29. The precise mechanism of chloroquine-mediated retinal toxicity is unknown.

    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.

    Retinal toxicity from chloroquine apre-19 cells

    Chloroquine treatment of ARPE-19 cells leads to lysosome., Common Medications That May Be Toxic to the Retina

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    • Toxicity and phototoxicity in human ARPE-19 retinal pigment..
    • Chloroquine Retinopathy - an overview ScienceDirect Topics.
    • Chloroquine - Wikipedia.

    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 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. Chloroquine is quinolone derivative known to exert dose‐related retinal toxicity, albeit in a variable manner. It is thought that variability in the presentation of chloroquine retinopathy may be the result of perturbations in drug bioavailability subsequent to oral ingestion.

     
  7. DesingKnuckles New Member

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  8. wilelf New Member

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  9. alexfor Well-Known Member

    Plaquenil Dosage Guide - PLAQUENIL film-coated tablets cannot be divided, therefore they should not be used to treat patients who weigh less than 31 kg. For radical cure of P. vivax and P. malariae infections, concomitant therapy with an 8-aminoquinoline compound is necessary.

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