There are hundreds of drugs with potential retinal toxicity—so many that the National Registry of Drug-Induced Ocular Side Effects doesn’t stratify them by incidence or effect, said Frederick W. “Rick” Fraunfelder, MD, director of the Registry and associate professor of ophthalmology at Oregon Health & Science University in Portland. What if plaquenil doesn't work Pictures of plaquenil rash Hydroxychloroquine headache Hydroxychloroquine Plaquenil is an anti-malarial medication used for a variety of inflammatory diseases including as well as rheumatoid arthritis and. Hydroxychloroquine is contraindicated for patients for several reasons. Rarely, hydroxychloroquine can affect the bone marrow leading to reduced white blood cells leukopenia or platelets thrombocytopenia and abnormal red blood cells. Rare but potentially serious eye toxicity can occur. Hydroxychloroquine is used to treat malaria. It is also used to prevent malaria infection in areas or regions where it is known that other medicines eg, chloroquine may not work. Hydroxychloroquine belongs to a group of medicines known as antimalarials. “It’s a pretty rare thing.” Nevertheless, he urged doctors to master the Academy’s new guidelines, because the effects from chloroquine and hydroxychloroquine, when they do occur, are severe and often irreversible. “Plaquenil toxicity isn’t even in the top 10, or the top 100” if you’re looking at incidence, he said. How dangerous is hydroxychloroquine Plaquenil Uses, Dosage & Side Effects -, Hydroxychloroquine Plaquenil Side Effects & Dosage for Malaria Sudden blurry vision with plaquenilDo joints hurt more when starting plaquenil Plaquenil hydroxychloroquine Plaquenil hydroxychloroquine has many side effects. Some common ones include dizziness, abdominal pain, headache, nausea, diarrhea, itching, and sensitiviy to sun. More serious side effects which are more rare include certain types of anemia. Dangers of plaquenil hydroxychloroquine? - Answered by top.. Hydroxychloroquine Advanced Patient Information -. Hydroxychloroquine - Side Effects, Dosage, Interactions.. Although hydroxychloroquine is widely used in Spain, mainly in application to rheumatological disorders, very few cases of intoxication caused by this drug have been reported to date. The present clinical case describes the basic characteristics of hydroxychloroquine intoxication, and provides a review of the guidelines for using the drug. Some side effects of hydroxychloroquine may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Yes, RA can cause joint damage and fusion but it can also cause you to lose your eye sight, heart disease, ect. Joint pain and damage won't kill you but the effects of chronic inflammation can. As a rule medications are only prescribed if the potential benefits out weigh the risks.