Although not all of these side effects may occur, if they do occur they may need medical attention. Check with your doctor immediately if any of the following side effects occur while taking hydroxychloroquine: Incidence not known Some side effects of hydroxychloroquine may occur that usually do not need medical attention. What does plaquenil do to eyes Hydroxychloroquine breastfeeding Plaquenil visual field Hydroxychloroquine C18H26ClN3O CID 3652 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities. Get information on Hydroxychloroquine tablets including uses, dosage details, medication side-effects and drug interaction facts from Cleveland Clinic's health library. 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. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. These side effects may go away during treatment as your body adjusts to the medicine. Hydroxychloroquine tab Hydroxychloroquine Plaquenil Side Effects & Dosage for Malaria, Hydroxychloroquine tablets - Cleveland Clinic Can hydroxychloroquine saliva false positive drug testChloroquine stock concentrationPlaquenil baseline testing Hydroxychloroquine sulfate sulfate base, and are for oral PLAQUENIL® HYDROXYCHLOROQUINE SULFATE TABLETS, USP DESCRIPTION PLAQUENIL h. ydroxychloroquine sulfate is a. white or practically white, crystalline. powder freely. soluble in water; practically insoluble in alcohol, chloroform, and in ether. The. chemical. name for PLAQUENIL HYDROXYCHLOROQUINE SULFATE TABLETS, USP DESCRIPTION. Plaquenil hydroxychloroquine sulfate dose, indications.. Hydroxychloroquine 200 mg Tablets Generic Plaquenil. Apr 10, 2019 Plaquenil hydroxychloroquine belongs to a group of medicines called quinolines. Plaquenil is used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Hydroxychloroquine Plaquenil is considered a disease-modifying anti-rheumatic drug DMARD. It can decrease the pain and swelling of arthritis. It may prevent joint damage and reduce the risk of long-term disability. Hydroxychloroquine is in a class of medications that was first used to prevent and treat malaria. Hydroxychloroquine is in a class of drugs called antimalarials. It is used to prevent and treat acute attacks of malaria. It is also used to treat discoid or systemic lupus erythematosus and rheumatoid arthritis in patients whose symptoms have not improved with other treatments.