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. Chloroquine and ciprofloxacin How to stop taking hydroxychloroquine Plaquenil erosive arthritis Chloroquine action 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, but it may be prescribed in situations where hydroxychloroquine cannot be used. The more common side effects that can occur with hydroxychloroquine include headache; dizziness; diarrhea; stomach cramps; vomiting; Mild side effects may go away within a few days or a couple of. Cardiac Effects, including Cardiomyopathy and QT prolongation Postmarketing cases of life-threatening and fatal cardiomyopathy have been reported with use of Plaquenil as well as with use of chloroquine. Patients may present with atrioventricular block, pulmonary hypertension, sick sinus syndrome or with cardiac complications. 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. Does plaquenil have lifetime effects Plaquenil Oral Uses, Side Effects, Interactions, Pictures., Hydroxychloroquine Side Effects, Dosage, Uses, and More Act chloroquineBig blood clots during period with plaquenil Description and Brand Names. Drug information provided by IBM Micromedex US Brand Name. Plaquenil; Descriptions. Hydroxychloroquine is used to treat malaria. It is also used to prevent malaria infection in areas or regions where it is known that other medicines eg, chloroquine may not work. Hydroxychloroquine Oral Route Description and Brand.. Plaquenil - FDA prescribing information, side effects and uses. Long-Term Side Effects of Plaquenil for Rheumatoid.. Hydroxychloroquine sulfate HCQ, Plaquenil is an analogue of chloroquine CQ, an antimalarial agent, used for the treatment of systemic lupus erythematosus, rheumatoid arthritis and other autoimmune disorders. Its use has been associated with severe retinal toxicity, requiring a discontinuation of therapy. Common Side Effects of Plaquenil. Tell your doctor if any of the following side effects, as they may be indications of a more serious reaction Headache; Loss of appetite; Dizziness; Nausea PLAQUENIL® HYDROXYCHLOROQUINE SULFATE TABLETS, USP DESCRIPTION PLAQUENIL h. ydroxychloroquine sulfate is a. white or practically white, crystalline. powder freely. soluble in water; practically insoluble in alcohol, chloroform, and in ether. The. increase the incidence of adverse effects. PLAQUENIL.