Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Chloroquine maculopathy treatment Chloroquine for malaria prophylaxis dosing Hydroxychloroquine Plaquenil is used to treat malaria, lupus, and rheumatoid arthritis. Learn about side effects, warnings, dosage, and more. Hydroxychloroquine Plaquenil is a drug that is classified as an anti-malarial drug. Plaquenil is prescribed for the treatment or prevention of malaria. It is also prescribed for the treatment of rheumatoid arthritis, lupus, and the side effects of lupus such as hair loss, joint pain, and more. Alternative drugs to the conditions Plaquenil treats Systemic lupus erythematosus; Rheumatoid arthritis; Sjogren syndrome; Arthritis; Mixed connective tissue disease; Most common Plaquenil side effects Plaquenil side effects 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. Conditions that plaquenil treats Plaquenil Hydroxychloroquine - Side Effects, Dosage., Hydroxychloroquine Plaquenil Side Effects & Dosage for. Plaquenil hair changesPlaquenil glucosePlaquenil 200 mg dosePsoriasis hydroxychloroquine Plaquenil is commonly used in rheumatoid arthritis, but was originally developed as an antimalarial medication. A number of immunodeficient conditions may be treated with Plaquenil, including Sjögren’s syndrome, a number of autoimmune diseases such as lupus and Coxiella burnetii-related heart infections. 4-6 Could Plaquenil Treat COVID-19 Illness?. Plaquenil effectiveness, side effects, alternatives.. Taking Plaquenil for Rheumatoid Arthritis. Three anti-malarial drugs are prescribed for lupus symptoms. Hydroxychloroquine Plaquenil is the most commonly prescribed because it is generally believed to cause fewer side effects; chloroquine Aralen has a reputation for more serious side effects. Hydroxychloroquine Plaquenil is considered a disease-modifying anti-rheumatic drug DMARD. It can decrease the pain and swelling of arthritis. It may prevent joint damage and reduce the risk of long-term disability. Hydroxychloroquine is in a class of medications that was first used to prevent and treat malaria. Plaquenil is also used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Aralen is also used to treat infections caused by amoebae. Side effects of Plaquenil and Aralen that are similar include nausea, vomiting, stomach pain or cramps, diarrhea, headache, or hair loss.