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. Psoriasis from generic plaquenil Plaquenil and tsh Plaquenil and light sensitivity to eyes Hydroxychloroquine is a well-tolerated medication for various rheumatologic and dermatologic conditions. Its main side effects are gastrointestinal upset, skin rash, headache, and ocular toxicity1. Within the eye, hydroxychloroquine can adversely impact the cornea, ciliary body, and retina1 Hydroxychloroquine hye drox" ee klor' oh kwin is a hydroxylated derivative of chloroquine and has similar antimalarial activity but is less toxic, allowing for use in higher doses for longer periods. Originally used as an antimalarial agent, hydroxychloroquine was later found to have antiinflammatory activity. Diagnosis Hydroxychloroquine-induced retinal toxicity Discussion. Chloroquine CQ and hydroxychloroquine Plaquenil HCQ have been used for many years, initially for the treatment of malaria but now more commonly for the treatment of inflammatory diseases such as rheumatoid arthritis and lupus 1is now considered for new disease applications in diabetes, heart disease and adjunct. 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. Serious toxicity of hydroxychloroquin Plaquenil Hydroxychloroquine Side Effects and Adverse Reactions, Hydroxychloroquine - LiverTox - NCBI Bookshelf Plaquenil ppd testCan i take prednisone and hydroxychloroquine togetherChloroquine phosphate bp Lyons emphasizes the importance of annual screening and says that, although annual screening is recommended for everyone taking Plaquenil, it is imperative for people who have been taking the medication for more than 10 years, who have a higher incidence of retinal toxicity. Plaquenil-induced toxicity usually will not occur before five years of. Protecting your eyesight when taking Plaquenil Lupus Foundation of.. Hydroxychloroquine Plaquenil Toxicity and.. Recommendations on Screening for Chloroquine and Hydroxychloroquine.. What Is Plaquenil? Plaquenil hydroxychloroquine is an antimalarial medication used to treat or prevent malaria, a disease caused by parasites, which enter the body through the bite of a mosquito. Plaquenil is also used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Plaquenil is available in generic form. What Are Side Effects of Plaquenil? Serious side effects are rare. The most common side effects are nausea and diarrhea, which often improve with time. Less common side effects include rash, changes in skin pigment such as darkening or dark spots, hair changes, and muscle weakness. Rarely, hydroxychloroquine can lead to anemia in some individuals. The lethal plasma level of hydroxychloroquine is not well established. Serious toxicity has been reported in patients with plasma levels ranging from 2.05 to 29.40 mcmol/L. 0.64 to 9.87 mg/L Post mortem blood levels of 142.89 mcmol/L 48 mg/L and 309.62 mcmol/L 104 mg/L have been reported.