Pattern of Retinopathy: Although the locus of toxic damage is parafoveal in many eyes, Asian patients often show an extramacular pattern of damage. Dose: We recommend a maximum daily HCQ use of 5.0 mg/kg real weight, which correlates better with risk than ideal weight. Safe to take plaquenil and estrogen together Treating ra with plaquenil Plaquenil vulvar lichen planus Chloroquine/hydroxychloroquie has a well-studied toxicity profile. The half-century-long use of this drug in the therapy of malaria demonstrates the safety of acute administration of chloroquine to human beings. CONCLUSIONS The mortality rate in patients with acute chloroquine poisoning, including those patients sick enough to be referred to a specialty unit such as ours, can be limited to or = 10%. This finding appears to be true even in patients with massive ingestions. Commonly used on holidays in malaria prone destinations, chloroquine and hydroxychloroquine will not be over familiar to the emergency physician. However, it is one of the leading causes of drug overdose in malaria prone countries and also the occasional toddler has managed to consume the grandparents lupus or rheumatoid arthritis medication leading to lethal consequences. Risk of Toxicity: The risk of toxicity is dependent on daily dose and duration of use. There are no similar demographic data for CQ, but dose comparisons in older literature suggest using 2.3 mg/kg real weight. Acute chloroquine toxicity Treatment of hydroxychloroquine overdose - ScienceDirect, Treatment of acute chloroquine poisoning a 5-year experience. Rheumatoid arthritis choosing initial treatment plaquenil vs enbrelChloroquine mechanism mitochondriaIs chloroquine an antibiotic 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. Chloroquine retinopathy - Wikipedia. Chloroquine and Hydroxychloroquine • LITFL • Toxicology.. PDF Treatment of acute chloroquine poisoning A 5-year.. The usefulness of hypokalemia as an indicator in the evaluation of chloroquine toxicity was studied in a retrospective series of 191 acute chloroquine poisonings. Results indicated that the risk of severe poisoning and death are proportional to the degree of hypokalemia. While relatively low in incidence, hydroxychloroquine and chloroquine retinal toxicity, represents a condition that is modifiable but not reversible or stoppable if detected early in development. Recent reports suggest that the risk of toxicity increases sharply to 1 % after 5 to 7 years of use with a cumulative dose of 1000 grams as the tipping point. Hydroxychloroquine Plaquenil and chloroquine cause ocular toxicity to various parts of the eye such as the cornea, ciliary body, and retina. Chloroquine can also induce cataract formation; however, no reports of hydroxychloroquine and cataract have been reported 1.