Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Hydroxychloroquine can it shrink spleen New plaquenil screening guidelines Rheumatoid arthritis medication plaquenil Effects of plaquenil on pregnancy Get emergency medical help if you have signs of an allergic reaction to hydroxychloroquine hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. Stop taking this medicine 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. Call your doctor at. Stars. Plaquenil is the brand name for the prescription drug hydroxychloroquine. 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. However, some drugs can interact with hydroxychloroquine. Indigestion remedies for example, antacids including some over-the-counter preparations can stop hydroxychloroquine being absorbed. It's recommended you wait at least four hours after taking hydroxychloroquine before you take an indigestion remedy. Hydroxychloroquine may also be used for purposes not listed in this medication guide. Hydroxychloroquine is also used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Can i take tylenol with hydroxychloroquine Drug spotlight on hydroxychloroquine Lupus Foundation of America, Plaquenil Hydroxychloroquine - Side Effects, Dosage. Chloroquine dosage formsHydroxychloroquine side effects diarrhea Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. Stop taking hydroxychloroquine 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. Plaquenil, Plaquenil Sulfate, Quineprox hydroxychloroquine Uses, Side.. Hydroxychloroquine Side-effects, uses, time to work. Plaquenil and Advil. Drug interactions are reported among people who take Plaquenil and Acetaminophen together. This study is created by eHealthMe based on reports of 286 people who take Plaquenil and Acetaminophen from Food and Drug Administration FDA, and is updated regularly. eHealthMe has been monitoring drugs and supplements since 2008. We would like to show you a description here but the site won’t allow us. Hydroxychloroquine comes as a tablet to take by mouth. For prevention of malaria in adults, two tablets are usually taken once a week on exactly the same day of each week. The first dose is taken 1 to 2 weeks before traveling to an area where malaria is common, and then doses are continued for 8 weeks after exposure.