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. Hydroxychloroquine dosing Plaquenil for throat inflammation Ideal body weight Plaquenil dosing calculations are reprinted with permission from The Lupus Encyclopedia A Comprehensive Guide for Patients and Families, by Donald E. Thomas, published by Johns Hopkins University Press. Nov 25, 2019 Detailed Hydroxychloroquine dosage information for adults and children. Includes dosages for Rheumatoid Arthritis, Systemic Lupus Erythematosus, Malaria Prophylaxis and more; plus renal, liver and dialysis adjustments. Medication Dosage. Several factors have been associated with the risk of developing hydroxychloroquine retinopathy. One of the most important appears to be dosage—with debate over whether daily intake vs. cumulative dosage is most significant. It is imperative that patients and physicians are aware of and watch for this drug’s ocular side effects. Retinal toxicity from hydroxychloroquine is rare, but even if the medication is discontinued, vision loss may be irreversible and may continue to progress. Hydroxychloroquine dosage calculator Chloroquine & Hydroxychloroquine supporting chemo., Hydroxychloroquine Dosage Guide with Precautions - Hydroxychloroquine pediatric lupusPlaquenil and oxymetazoline hydrochloridePlaquenil farmacia onlineIncidence of retinal toxicity from plaquenilHow much does aralen cost The recommended Plaquenil dosage for malaria prevention is 400 mg once weekly, starting two weeks before the anticipated exposure. The usual starting dosage for treating lupus is 400 mg once or twice a day, and the recommended starting dose for the treatment of rheumatoid arthritis is 400 to 600 mg daily. Plaquenil Dosage - Antibiotics Home Page. Hydroxychloroquine-Induced Retinal Toxicity - American.. DATA SHEET 1 PRODUCT NAME 2 QUALITATIVE AND QUANTITATIVE.. Many patients treated with hydroxychloroquine receive a dosage that exceeds the recommended maximum, boosting the retinal damage risk. Also, “it is more convenient to prescribe 400 mg daily rather than calculate an exact dosage,” Dr. Koppikar said in an interview. Rheumatoid Arthritis. The action of hydroxychloroquine is cumulative and may require weeks to months to achieve the maximum therapeutic effect see CLINICAL PHARMACOLOGY. Initial adult dosage 400 mg to 600 mg 310 to 465 mg base daily, administered as a single daily dose or in two divided doses. In a small percentage of patients, side effects may require temporary reduction of the initial. Abstract. Background The American Academy of Ophthalmology recommendations on screening for chloroquine CQ and hydroxychloroquine HCQ retinopathy are revised in light of new information about the prevalence of toxicity, risk factors, fundus distribution, and effectiveness of screening tools.