Plaquenil 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, and Southern Asia. Aralen for malaria prophylaxis Plaquenil side effects reviews Blurred vision or other vision changes. chest discomfort, pain, or tightness. cough or hoarseness. dark urine. decreased urination. defective color vision. diarrhea. difficulty breathing. difficulty seeing at night. dizziness or fainting. fast, pounding, uneven heartbeat. feeling that others are watching you or controlling your behavior Note This document contains side effect information about hydroxychloroquine. Some of the dosage forms listed on this page may not apply to the brand name Plaquenil. For the Consumer. Applies to hydroxychloroquine oral tablet. Along with its needed effects, hydroxychloroquine the active ingredient contained in Plaquenil may cause some unwanted effects. Aug 14, 2017 Long-Term Side Effects of Plaquenil for Rheumatoid Arthritis. Plaquenil is the brand name of hydroxychloroquine, a drug used to prevent or treat malaria. Plaquenil is also used for long-term treatment of autoimmune diseases such as rheumatoid arthritis RA and systemic lupus erythmatosis. Plaquenil is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. This medicine is not effective against all strains of malaria. Plaquenil vision side effects Long-Term Side Effects of Plaquenil for Rheumatoid., Plaquenil Side Effects Common, Severe, Long Term - Can you take tramadol with hydroxychloroquinePlaquenil marijuanaDoes plaquenil increase risk of infectionUsing plaquenil in end stage macular degenerationHow long does it take plaquenil to leave your system Plaquenil hydroxychloroquine belongs to a group of medicines called quinolines. Plaquenil 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, and Southern Asia. Plaquenil Uses, Dosage & Side Effects -. Long-Term Side Effects of Plaquenil for Rheumatoid Arthritis.. Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses. Download PDF. Drug-induced ocular side effects are back in the spotlight, thanks to the Academy’s revision of its recommendations on screening for retinal toxicity from chloroquine and its analogue hydroxychloroquine Plaquenil. 1 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. Find patient medical information for Plaquenil Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. If you are taking Plaquenil to treat an inflammatory condition or malaria, you should be aware of the side effects that may occur to your eyes and vision. Plaquenil hydroxychloroquine is in a class of drugs called disease-modifying anti-rheumatic drugs, which are used to decrease inflammation, pain and joint damage.