Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Mefloquine or plaquenil Aralen medicine Hydroxychloroquine sulfate is a colorless crystalline solid, soluble in water to at least 20 percent; chemically the drug is 2-4-7-Chloro-4-quinolylaminopentylethylamino ethanol sulfate 11. PLAQUENIL hydroxychloroquine sulfate tablets contain 200 mg hydroxychloroquine sulfate, equivalent to 155 mg base, and are for oral administration. HYDROXYCHLOROQUINE is used to treat rheumatoid arthritis and systemic lupus is also used to treat malaria. The lowest GoodRx price for the most common version of generic Plaquenil is around $20.41, 88% off the average retail price of $177.73. 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. 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 2 mg Hydroxychloroquine Plaquenil Side Effects & Dosage for Malaria, What is Plaquenil? - GoodRx Hydroxychloroquine retina Side Effects. Drug information provided by IBM Micromedex Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention. Hydroxychloroquine Oral Route Side Effects - Mayo Clinic. Plaquenil Hydroxychloroquine - Side Effects, Dosage, Interactions - Drugs. Hydroxychloroquine Oral Uses, Side Effects, Interactions.. Hi, I saw a rheumy for the first time last week, and he prescribed plaquenil, 200 mg twice a day. Didn't diagnose with Lupus yet, but said I definitely have something autoimmune going on and the plaq will help with the fatigue. He warned that it could take 2-6 months, though, which is what I've read here too. Hydroxychloroquine received an overall rating of 7 out of 10 stars from 368 reviews. See what others have said about Hydroxychloroquine, including the effectiveness, ease of use and side effects. Weight based dosage in adults and pediatric patients 13 mg/kg 10 mg/kg base, not to exceed 800 mg 620 mg base followed by 6.5 mg/kg 5 mg/kg base, not to exceed 400 mg 310 mg base, at 6 hours, 24 hours and 48 hours after the initial dose. PLAQUENIL film-coated tablets cannot be divided, therefore they should not be used to treat.