It's used to treat and prevent malaria infection, and to reduce symptoms and progression of autoimmune diseases such as lupus, rheumatoid arthritis, and others. Malaria is spread by mosquitoes, which transmit the parasites that cause the infection, usually in tropical and subtropical parts of the world. Plaquenil usual dosage Does plaquenil help Plaquenil side effects bone pain 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 feeling that others can hear your thoughts feeling, seeing, or hearing things that are not there fever with or without chills Find user ratings and reviews for Plaquenil oral on WebMD including side effects and drug interactions, medication effectiveness, ease of use and satisfaction Plaquenil hydroxychloroquine is in a class of drugs called disease-modifying anti-rheumatic drugs, which are used to decrease inflammation, pain and joint damage. While today it is used to treat autoimmune conditions, such as rheumatoid arthritis and lupus, it was originally used as an anti-malaria drug. For example, it may be combined with an antibiotic to treat chronic Q-fever, which humans usually catch from farm animals or raw milk. Plaquenil is used to treat other types of infections too. Plaquenil color pill DailyMed - PLAQUENIL- hydroxychloroquine sulfate tablet, Plaquenil oral Reviews and User Ratings Effectiveness. Hydroxychloroquine 200 mg discountsQuinoric hydroxychloroquine side effectsCan hydroxychloroquine be sold as brand name Search by imprint, shape, color or drug name. Drug Identifier Results for "Plaquenil". Search by imprint, shape, color or drug name. Skip to Content. Search. Image Results for "Plaquenil" Below are results that match your criteria. Click on an image or generic/brand name to search for information about the drug in our database. Plaquenil - Pill Identifier. Plaquenil Side Effects on Your Eyes and Vision. Protecting your eyesight when taking Plaquenil Lupus.. Apr 10, 2019 Taking Plaquenil long-term or at high doses may cause irreversible damage to the retina of your eye. Stop taking Plaquenil and call your doctor at once if you have trouble focusing, if you see light streaks or flashes in your vision, or if you notice any swelling or color changes in your eyes. Hydroxychloroquine HCQ, sold under the brand name Plaquenil among others, is a medication used for the prevention and treatment of certain types of malaria. Specifically it is used for chloroquine -sensitive malaria. 2 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, and Southern Asia. This medicine is not effective against all strains of malaria. Hydroxychloroquine is also used.