Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Hydroxy chloroquine oral or sulfate Aralen patient education A drug developed over half a century ago to treat malaria is showing signs that it may also help cure COVID-19 -- especially when combined with an antibiotic, a promising new study reveals. Irreversible retinal damage observed in some patients who had received hydroxychloroquine sulfate; significant risk factors for retinal damage include daily doses of hydroxychloroquine sulfate greater than 6.5 mg/kg 5 mg/kg base of actual body weight, durations of use greater than five years, subnormal glomerular filtration. Hydroxychloroquine Plaquenil is used to treat malaria, lupus, and rheumatoid arthritis. Learn about side effects, warnings, dosage, and more. 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. Dosage for plaquenil Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses, Plaquenil hydroxychloroquine sulfate dosing, indications. Chloroquine concentrationPlaquenil blurry eyes from allergiesChloroquine clinical trials cancer As for malaria treatment, though Plaquenil can be indicated for the treatment of uncomplicated malaria, the exact mechanism by which this drug works to resolve malaria is largely unknown. What Exactly Is Hydroxychloroquine, The Drug That Is Being.. Hydroxychloroquine Side Effects, Dosage, Uses, and More. Hydroxychloroquine - Side Effects, Dosage, Interactions.. The usual starting dose of Plaquenil is 200 mg twice a day or 400 mg once a day, administered orally, in people weighing 80 kg or more. The usual dosage works for most people who take Plaquenil, but it is possible to increase or decrease the dose based on individual needs. 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. Nov 25, 2019 Initial dose 400 mg 310 mg base orally 1 to 2 times a day; this dose may be continued for several weeks or months, depending on patient response. Maintenance dose 200 to 400 mg 155 to 310 mg base orally daily. Comments -Each dose should be taken with a meal or a glass of milk.