Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Can plaquenil cause abdominal pain Chloroquine phosphate for lupus Does Plaquenil Interact with other Medications? Severe Interactions. These medications are not usually taken together. Consult your healthcare professional e.g. doctor or pharmacist for more in. PLAQUENIL Hydroxychloroquine Sulfate 200 mg Pill with imprint PLAQUENIL is White, Figure eight-shape and has been identified as Hydroxychloroquine Sulfate 200 mg. It is supplied by Sanofi-Synthelabo Inc. Hydroxychloroquine is a prescription drug. It comes as an oral tablet. Hydroxychloroquine is available as the brand-name drug Plaquenil. It’s also available in a generic version. 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. Photos of plaquenil pills Plaquenil Uses, Dosage & Side Effects -, PLAQUENIL Pill Images White / Figure eight-shape Chloroquine phosphate vetHow to pronounce hydroxychloroquineHydroxychloroquine 400 mg tabletsHydroxychloroquine sulfate adverse reactionsEye exam for plaquenil use What is Plaquenil Toxicity? The toxicity resulting from the intake of Plaquenil is due to its affinity for melanin-containing structures in the body. With prolonged usage, metabolites in the drug accumulate in the retina. The drug remains in these parts even if the patients stopped taking the drugs. Plaquenil Toxicity - Symptoms, Treatment, Risk Factors, Retinopathy. Hydroxychloroquine Side Effects, Dosage, Uses, and More. Hydroxychloroquine sulfate - Pill Identifier. Hydroxychloroquine is a quinoline medicine used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Plaquenil is a slow-acting drug, meaning that it can take up to 6 months to experience the full benefits of this medication, but it is possible for symptoms to improve in as few as 1 or 2 months. Plaquenil and other antimalarials are the key to controlling lupus long-term, and some lupus patients may be on Plaquenil for the rest of their lives. Plaquenil received an overall rating of 5 out of 10 stars from 4 reviews. See what others have said about Plaquenil, including the effectiveness, ease of use and side effects.