Please review the following URL and make sure that it is spelled correctly. Hydroxychloroquine is used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. What does plaquenil do to your immune system Plaquenil and sun sensitivity Your symptoms may improve before the infection is completely cleared. When treating lupus or arthritis, tell your doctor if your symptoms do not improve after 6 months of treatment. Before taking this medicine. You should not use Plaquenil if you are allergic to hydroxychloroquine. Plaquenil should not be used for long-term treatment in children. Hydroxychloroquine plaquenil and sulfasalazine azulfidine are used for mild rheumatoid arthritis. they are not as powerful as other dmards, but they usually cause fewer side effects. Rheumatoid Arthritis. The action of hydroxychloroquine is cumulative and may require weeks to months to achieve the maximum therapeutic effect see CLINICAL PHARMACOLOGY. Initial adult dosage 400 mg to 600 mg 310 to 465 mg base daily, administered as a single daily dose or in two divided doses. In a small percentage of patients, side effects may require temporary reduction of the initial. This medicine is not effective against all strains of malaria. Malaria is common in areas such as Africa, South America, and Southern Asia. Plaquenil arthritis symptoms HYDROXYCHLOROQUINE - ORAL Plaquenil side effects., What are the side effects of using hydroxychloroquine. Plaquenil brand name vs generic Hydroxychloroquine is often used alone as monotherapy for mild cases of rheumatoid arthritis or in combination with other DMARDs to treat moderate to severe cases of rheumatoid arthritis. Symptoms of Rheumatoid Arthritis RA Symptoms can be really different between patients suffering from rheumatoid arthritis. What Is Hydroxychloroquine and How Does It Help Arthritis.. Plaquenil Dosage Guide -. Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses. Today, Plaquenil and other antimalarials are also used to treat and help prevent symptoms caused by certain autoimmune diseases such as rheumatoid arthritis RA, systemic lupus erythematosus, and discoid lupus, even though these diseases are not caused by malaria parasites. Plaquenil belongs in a class of medications known as disease-modifying. User Reviews for Plaquenil to treat Rheumatoid Arthritis. The following information is NOT intended to endorse any particular medication. While these reviews might be helpful, they are not a substitute for the expertise, skill, knowledge and judgement of healthcare practitioners. Hydroxychloroquine is also used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Hydroxychloroquine may also be used for purposes not listed in this.