Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. How to stop itching from chloroquine injection Plaquenil and essential oils Alfuzosin and hydroxychloroquine side effects SIDE EFFECTS. The following adverse reactions have been identified during post-approval use of PLAQUENIL or other 4-aminoqunoline compounds. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Before using hydroxychloroquine, tell your doctor or pharmacist of all the drugs you take and if you have any of the following conditions certain heart problems heart failure, slow heartbeat, QT. Hydroxychloroquine is a relatively safe medication but it is recommended to have regular monitoring by an ophthalmologist eye doctor while taking this drug. Before you begin taking Plaquenil, tell you doctor your complete medical history including any eye problems that may have come from other aminoquinolines other antimalarial drugs such. Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. Hydroxychloroquine is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Does plaquenil have generic Hydroxychloroquine MedlinePlus Drug Information, Plaquenil Oral Uses, Side Effects, Interactions. Autoimmune plaquenilIs plaquenil dangerousin myasthenia gravis Does Hydroxychloroquine Have Side Effects? Like all medications, there is the risk of side effects. Fortunately, the problems seen by people taking this medication are usually very mild. Serious side effects are rare. Overall, most people who have any noticeable side effects from hydroxychloroquine experience diarrhea or nausea. RA and Hydroxychloroquine How Effective is it for Rheumatoid Arthritis.. Plaquenil What You Need to Know - Kaleidoscope Fighting Lupus. Hydroxychloroquine Side Effects, Dosage, Uses, and More. Nov 09, 2018 Hydroxychloroquine is used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Malaria is common in areas such as Africa, South America. Plaquenil received an overall rating of 5 out of 10 stars from 4 reviews. See what others have said about Plaquenil, including the effectiveness, ease of use and side effects. Research has shown that your risk of developing retinopathy is higher the longer you are taking Plaquenil. In fact, the incidence of retinal toxicity rises sharply in people that have taken it between 5 and 7 years. As a result, baseline testing should occur within the first year of taking the drug and then annually at the five-year mark.