It is used to prevent and treat acute attacks of malaria. It is also used to treat discoid or systemic lupus erythematosus and rheumatoid arthritis in patients whose symptoms have not improved with other treatments. Plaquenil mechanism of action Plaquenil itching Hydroxychloroquine with requip Plaquenil and sjogrens syndrome Plaquenil and Azulfidine belong to different drug classes. Plaquenil is an antimalarial medication and Azulfidine EN-tabs is an anti-inflammatory agent and immunomodulatory agent. Side effects of Plaquenil and Azulfidine that are similar include nausea, vomiting, loss of appetite. Safe use of the drug in the treatment of juvenile arthritis has not been established. Precautions Dermatologic reactions to PLAQUENIL may occur and, therefore, proper care should be exercised when it is administered to any patient receiving a drug with a significant tendency to produce dermatitis. Hydroxychloroquine is in a class of drugs called antimalarials. It is used to prevent and treat acute attacks of malaria. It is also used to treat discoid or systemic lupus erythematosus and rheumatoid arthritis in patients whose symptoms have not improved with other treatments. Hydroxychloroquine comes as a tablet to take by mouth. This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information. Plaquenil drug class Plaquenil Uses, Dosage & Side Effects -, PLAQUENIL® - Food and Drug Administration Chloroquine toxicity ecg Provides accurate and independent information on more than 24,000 prescription drugs, over-the-counter medicines and natural products. This material is provided for educational purposes only and is not intended for medical advice, diagnosis or treatment. Data sources include IBM Watson Micromedex updated, Cerner Multum™ updated, Wolters Kluwer™ updated. Hydroxychloroquine Professional Patient Advice -. Hydroxychloroquine MedlinePlus Drug Information. Plaquenil Hydroxychloroquine Uses, Dosage, Side Effects.. PLAQUENIL prescription and dosage sizes information for physicians and healthcare professionals. Pharmacology, adverse reactions, warnings and side effects. It belongs to a class of medications known as disease-modifying antirheumatic drugs DMARDs. It can reduce skin problems in lupus and prevent swelling/pain in arthritis, though it is not known. Hydroxychloroquine and sulfasalazine are used for mild rheumatoid arthritis. They are not as powerful as other DMARDs, but they usually cause fewer side effects. Biologic drugs abatacept.