Hydroxychloroquine mechanism of action lupus

Discussion in 'Canadian Pharmacy' started by Gricha, 10-Mar-2020.

  1. Jazzina Guest

    Hydroxychloroquine mechanism of action lupus


    Falciparum Discontinue in 6 months if improvement is inadequate Use in patients with psoriasis may precipitate a severe attack of psoriasis; use with caution Postmarketing cases of life-threatening and fatal cardiomyopathy reported with use of hydroxychloroquine as well as of chloroquine Irreversible retinal damage observed in some patients who had received hydroxychloroquine sulfate; significant risk factors for retinal damage include daily doses of hydroxychloroquine sulfate greater than 6.5 mg/kg (5 mg/kg base) of actual body weight, durations of use greater than five years, subnormal glomerular filtration, use of some concomitant drug products such as tamoxifen citrate and concurrent macular disease Ocular examination is recommended within first year of therapy; baseline exam should include: best corrected distance visual acuity (BCVA), an automated threshold visual field (VF) of the central 10 degrees (with retesting if an abnormality is noted), and spectral domain ocular coherence tomography (SD-OCT) For individuals with significant risk factors (daily dose of hydroxychloroquine sulfate 5.0 mg/kg base of actual body weight, subnormal glomerular filtration, use of tamoxifen citrate or concurrent macular disease) monitoring should include annual examinations which include BCVA, VF and SD-OCT; for individuals without significant risk factors, annual exams can usually be deferred until five years of treatment In individuals of Asian descent, retinal toxicity may first be noticed outside macula; in patients of Asian descent, it is recommended that visual field testing be performed in central 24 degrees instead of central 10 degrees Hydroxychloroquine should be discontinued if ocular toxicity is suspected and patient should be closely observed given that retinal changes (and visual disturbances) may progress even after cessation of therapy Hepatic disease or alcoholism Glucose-6-phosphate dehydrogenase (G6PD) deficiency is associated with hemolysis and renal impairment; use with caution Dermatologic reactions to hydroxychloroquine may occur Patients are prone to dermatitis outbreaks Signs or symptoms of cardiac compromise have appeared during acute and chronic treatment; clinical monitoring for signs and symptoms of cardiomyopathy is advised, including use of appropriate diagnostic tools such as ECG to monitor patients for cardiomyopathy during therapy; if cardiotoxicity is suspected, prompt discontinuation may prevent life-threatening complications Not for administration with other drugs that have potential to prolong QT interval; hydroxychloroquine prolongs QT interval; ventricular arrhythmias and torsades de pointes reported in patients taking hydroxychloroquine Skeletal muscle myopathy or neuropathy leading to progressive weakness and atrophy of proximal muscle groups, depressed tendon reflexes, and abnormal nerve conduction, reported; muscle and nerve biopsies have been associated with curvilinear bodies and muscle fiber atrophy with vacuolar changes; assess muscle strength and deep tendon reflexes periodically in patients on long-term therapy Suicidal behavior rarely reported in patients treated with hydroxychloroquine Hematologic reactions (including aplastic anemia) and agranulocytosis may occur May exacerbate heart failure Shown to cause severe hypoglycemia including loss of consciousness that could be life threatening in patients treated with or without antidiabetic medications; warn patients about risk of hypoglycemia and associated clinical signs and symptoms; patients presenting with clinical symptoms suggestive of hypoglycemia during treatment should have their blood glucose checked and treatment reviewed as necessary A reduction in dosage may be necessary in patients with hepatic or renal disease, as well as in those taking medicines known to affect these organs Use with caution in patients with hepatic disease or alcoholism or in conjunction with known hepatotoxic drugs Consider discontinuing therapy if any severe blood disorder such as aplastic anemia, agranulocytosis, leukopenia, or thrombocytopenia, which is not attributable to the disease under treatment appears; perform periodic blood cell counts if patients are given prolonged therapy Pregnancy category: C Lactation: Drug is concentrated in breast milk (American Academy of Pediatrics committee states that it is compatible with nursing) A: Generally acceptable. Contact the applicable plan provider for the most current information. Controlled studies in pregnant women show no evidence of fetal risk. Either animal studies show no risk but human studies not available or animal studies showed minor risks and human studies done and showed no risk. Animal studies show risk and human studies not available or neither animal nor human studies done.

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    Hydroxychloroquine is a racemic mixture consisting of an R and S enantiomer. Hydroxychloroquine is an aminoquinoline like chloroquine. It is a commonly prescribed medication in the treatment of uncomplicated malaria, rheumatoid arthritis, chronic discoid lupus erythematosus, and systemic lupus erythematosus. Hydroxychloroquine Sulfate Drug Information from Includes Hydroxychloroquine Sulfate side effects, interactions and indications. lupus erythematosus suppressant—. Recent developments in the understanding of the pharmacokinetics and mechanism of action of chloroquine. Ther Drug Monit 1989; 114 369-79. Hydroxychloroquine is widely used by rheumatologists for the treatment of various diseases, such as systemic lupus erythematosus and rheumatoid arthritis because of its safety and low cost.

    Unknown; may impair complement-dependent antigen-antibody reactions; inhibits locomotion of neutrophils and chemotaxis of eosinophils Increases p H and interferes with lysosomal degradation of hemoglobin, which in turn interferes with digestive vacuole function Bioavailability: Rapid and complete absorption Onset: May take 4-6 months to show response; peak response takes several months (rheumatic disease) Duration: Unknown Peak plasma time: 1-3 hr Protein bound: 55% Metabolites: Desethylhydroxychloroquine, desethylchloroquine Half-life: 32-50 days Excretion: Urine (60%) The above information is provided for general informational and educational purposes only. D: Use in LIFE-THREATENING emergencies when no safer drug available.

    Hydroxychloroquine mechanism of action lupus

    Plaquenil hydroxychloroquine sulfate dosing, indications., Hydroxychloroquine Sulfate Drug Information, Professional

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  7. Identifying Drug-Induced Lupus. Janene L. Marshall, PharmD. Hydroxychloroquine The dose commonly used is 400 mg once or twice daily. New drugs are increasingly entering the market with a mechanism of action that modifies the immunologic response in the patient. For pharmacists, an awareness of the potential adverse effects of these.

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    Hydroxychloroquine is a front-line treatment for systemic lupus erythematosus and other rheumatic diseases, but can cause retinopathy. Improved detection techniques for the early stages pre. Although obvious reasons exist to believe hydroxychloroquine may be useful to treat APS, its use in APS patients remains controversial. Those who argue for its use note that among hydroxychloroquine’s many mechanisms of action is its ability to inhibit aB2GPI binding to phospholipid bilayers. Plaquenil hydroxychloroquine is commonly used to help keep mild lupus-related problems, such as skin and joint disease, under control. This drug is also effective at preventing lupus flares.

     
  8. MaxF XenForo Moderator

    Description: An exception occurred while processing your request. How to Succeed in Plaquenil Screenings Electroretinography - Wikipedia AMERICAN COLLEGE OF RHEUMATOLOGY
     
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    The page you are trying to reach is not available on our site. The page name may have changed, you may have happened upon a broken link, or the URL may be entered incorrectly. Hydroxychloroquine Plaquenil thread COVID19 Hydroxychloroquine - Wikipedia
     
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