Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. 3-hydroxychloroquine Chloroquine pharmacological class PLAQUENIL hydroxychloroquine sulfate tablets is indicated for the treatment of rheumatoid arthritis, and discoid and systemic lupus erythematosus, in patients who have not responded satisfactorily to drugs with less potential for serious side effects. I have been taking Plaquenil 400 mg per day for about 2 years now due to lupus flare. When i first started it, I was also started on prednisone to get my inflammation under control. Actually I started on 200 mg per day and about 2 months before tapering off pred, he upped me to 400 mg per day of plaquenil to give it plenty of time to kick in. Plaquenil® is a brand name for hydroxychloroquine, an antimalarial agent used for suppression and treatment of acute attacks of malaria, treatment of systemic lupus erythematosus, and rheumatoid arthritis. 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. Plaquenil history Hydroxychloroquine Side Effects, Dosage, Uses, and More, Plaquenil - Plaquenil information sheetHydroxychloroquine and malarone Plaquenil-induced toxicity usually will not occur before five years of taking the drug. “Eye damage due to Plaquenil is not common,” he says. “Rarely will anybody who has good vision and minimal symptoms develop loss of central vision or ability to read if annual screening is done and visual are symptoms reported as soon as they occur so. Protecting your eyesight when taking Plaquenil Lupus.. Idasek's Plaquenil history PatientsLikeMe. The Nine Lives of Hydroxychloroquine RheumNow.. Chloroquine is a medication used to prevent and to treat malaria in areas where malaria is known to be sensitive to its effects. Certain types of malaria, resistant strains, and complicated cases typically require different or additional medication. Occasionally it is used for amebiasis that is occurring outside the intestines, rheumatoid arthritis, and lupus erythematosus. When treating lupus or arthritis, hydroxychloroquine is usually given daily for several weeks or months. For best results, keep using the medication as directed. Talk with your doctor if your symptoms do not improve after 6 months of treatment. While using hydroxychloroquine. Find patient medical information for Plaquenil Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. family history of certain heart.