Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Chloroquine lethal dose Plaquenil muscle weakness Quinacrine chloroquine antimalarial alkaloid Cost for plaquenil Plaquenil hydroxychloroquine is an antimalarial medication used to treat or prevent malaria, a disease caused by parasites, which enter the body through the bite of a mosquito. Plaquenil is also used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Plaquenil is available in generic form. Hydroxychloroquine increases the QT interval and should not be administered with other drugs known to prolong the QT interval. Ventricular arrhythmias and torsade de pointes have been reported with the use of hydroxychloroquine. Supratherapeutic doses of rilpivirine 75 to 300 mg/day have caused QT prolongation. Find patient medical information for Plaquenil Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. 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 300 mg Plaquenil - FDA prescribing information, side effects and uses, Plaquenil hydroxychloroquine sulfate dose, indications. Retinal toxicity dosage hydroxychloroquine Mar 17, 2019 Hydroxychloroquine dosing information. Usual Adult Dose for Malaria Treatment of the acute attack 800 mg 620 mg base followed in 6 to 8 hours by 400 mg 310 mg base, then 400 mg 310 mg base once a day for 2 consecutive days; alternatively, a single dose of 800 mg 620 mg base has also been effective Hydroxychloroquine Uses, Dosage & Side Effects -. Plaquenil Oral Uses, Side Effects, Interactions, Pictures.. Hydroxychloroquine Oral Tablet 200Mg Drug Medication.. Plaquenil comes in 200 milligram mg tablets that are taken by mouth. To prevent malaria in adults, two tablets are typically taken once a week, on the same day each week. HYDROXYCHLOROQUINE hye drox ee KLOR oh kwin is used to treat rheumatoid arthritis and systemic lupus erythematosus. It is also used to treat malaria. This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions. A 25 mg/mL hydroxychloroquine sulfate oral suspension may be made with tablets. With a towel moistened with alcohol, remove the coating from fifteen 200 mg hydroxychloroquine sulfate tablets. Crush tablets in a mortar and reduce to a fine powder.