It can decrease the pain and swelling of arthritis. It may prevent joint damage and reduce the risk of long-term disability. Best way to take plaquenil Plaquenil prevents lupus anticoagulangpt antibodies Find patient medical information for Plaquenil Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. WebMD provides common contraindications for Plaquenil Oral. Find out what health conditions may be a health risk when taken with Plaquenil Oral The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is. Today, it is used to treat rheumatoid arthritis, some symptoms of lupus, childhood arthritis (or juvenile idiopathic arthritis) and other autoimmune diseases. Hydroxychloroquine is in a class of medications that was first used to prevent and treat malaria. Plaquenil indication PLAQUENIL® - Food and Drug Administration, Contraindications for Plaquenil Oral Hydroxychloroquine nsaid What is the dosage for hydroxychloroquine Plaquenil? The usual adult dose for treating malaria is 800 mg initially, followed by 400 mg 6-8 hours later and then 400 mg at 24 hours and 48 hours. The dose for malaria prevention is 400 mg every week starting 1 or 2 weeks before exposure and for 4 weeks after leaving the high risk area. Hydroxychloroquine Plaquenil Side Effects & Dosage for.. What Conditions does Plaquenil Treat? - WebMD. Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses. Mg 310 mg base PO once every 7 days. Alternatively, 6.5 mg/kg/dose 5 mg base/kg/dose; Max 400 mg/dose or 310 mg base/dose. Dosing should begin 2 weeks before entering and continue for 4 weeks after leaving the endemic area. The CDC suggests hydroxychloroquine as an alternative to chloroquine. Hydroxychloroquine is a one of a number of drugs which have been used for many years in the treatment of malaria. Fortunately, it was discovered these drugs often are helpful in the treatment of various rheumatic diseases, particularly systemic lupus erythematosus SLE or "Lupus" and rheumatoid arthritis. 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.