Most importantly, you help support continued development of this site. The majority of cases of retinotoxicity have occurred in patients that have had a cumulative dose exceeding 1000g of hydroxychloriquine (Plaquenil). This level is reached in about 7 years with the most common daily dose of Plaquenil, 400 mg/day (200 bid). Plaquenil arthritis treatment Plaquenil tablets covis In summary, hydroxychloroquine-induced retinal toxicity is likely more prevalent than previously believed. Once thought to be safe at a daily dose of 6.5mg/kg/day 16, newer studies show that many years of hydroxychloroquine treatment at a "safe dose" can still lead to toxicity 6. Newer guidelines state that daily dose 5mg/kg of real. 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. This apparently resulted in overdosing of thin patients. Thus, the patient’s real weight is now recommended as the basis for calculating the daily dose per weight in kg. Doses ≥ 5 mg/kg/day real weight of hydroxychloroquine 2.3 mg/kg/day of chloroquine are associated with higher risk of toxicity. It now solely uses real body weight (rather than ideal body weight) based on new recommendations from a 2014 study (1). Disclaimer: This tool is designed to help eye care professionals better understand the risk the of retinotoxicity from hydroxychloroquine. Please note: This calculator was modified in 9/2015. Hydroxychloroquine dose per kg Plaquenil Risk Calculators, Recommendations on Screening for Chloroquine and. Sarcoidosis treatment hydroxychloroquineChloroquine resistente bakterien disserationPatent for proguanil chloroquine malaria Hydroxychloroquine comes in an oral tablet. Adult dosing ranges from 200 mg or 400 mg per day 6.5mg/kg. In some cases, higher doses can be used. It is recommended one tablet twice daily if taking more than one tablet. It is recommended to be taken with food. Hydroxychloroquine Plaquenil. Hydroxychloroquine And Chloroquine Screening 2016 AAO.. Hydroxychloroquine Plaquenil Dosing Calculator - MDCalc. Per the prior 2011 AAO guidelines the recommended maximum dose to minimize HCQ retinal toxicity was 6.5 mg /kg based on ideal body weight 2. The advantage of the real body weight formula is that it distributes the risk evenly on a broad range of body habitus. Feb 19, 2020 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. The first dose of Plaquenil is usually taken one to two weeks before traveling to an area where malaria is prevalent. Doses are then continued for four weeks after exposure. per kilogram kg.