Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Chloroquine for malaria Hydroxychloroquine fda approval Hydroxychloroquine is usually taken with food or milk to prevent stomach upset. The dosage and length of treatment are based on your medical condition and response to therapy. In children, dosage is also based on weight. Find patient medical information for Plaquenil Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. 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. 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. Hydroxychloroquine sulfatr alcohol Hydroxychloroquine Indications, Side Effects, Warnings., Plaquenil Oral Uses, Side Effects, Interactions. How much plaquenil medication costPlaquenil aleveChloroquine glycosylationRa plaquenil success ratesPlaquenil for autoimmune disorders Sep 01, 2019 Hydroxychloroquine sulfate is an odorless, white or practically white crystalline powder, freely soluble in water; practically insoluble in alcohol, in chloroform, and in ether. Chemically the drug is 2-4-7-Chloro-4-quinolyl amino pentyl ethylamino ethanol sulfate 11. Hydroxychloroquine Tablets - FDA prescribing information.. Plaquenil Hydroxychloroquine Uses, Dosage, Side Effects.. HYDROXYCHLOROQUINE SULFATE Food, Alcohol, Supplements and.. 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 can lower the seizure threshold; therefore, the activity of antiepileptic drugs may be impaired with concomitant use. Fingolimod Major Avoid coadministration of hydroxychloroquine and fingolimod. Hydroxychloroquine increases the QT interval and should not be administered with other drugs known to prolong the QT interval. If you are also taking kaolin or antacids, take them at least 4 hours before or after using hydroxychloroquine. Dosing. The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine.