However, during the treatment of patients with malaria who also had lupus, it was noted that their skin rashes improved. After these drugs were abandoned for the treatment of malaria, more study was done, and they were found to be effective for discoid lupus, subacute cutaneous lupus, dermatomyositis, rheumatoid arthritis, and psoriatic arthritis. Is plaquenil dangerous Can hydroxychloroquine cause diarrhea 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. Malaria is common in areas such as Africa, South America, and Southern Asia. Plaquenil ® hydroxychloroquine 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 hydroxychloroquine sulfate is 2-4-7-Chloro-4-quinolylaminopentylethylamino ethanol sulfate 11. Here are the three most common antimalarial drugs prescribed for lupus Hydroxychloroquine Plaquenil This is the most commonly prescribed antimalarial. Chloroquine Aralen This drug has been known to have more serious side effects. Quinacrine Atabrine Quinacrine is another. When the drugs were first used, the dosages were generally higher than prescribed today, and a peculiar side-effect on the retina of the eye occurred that permanently affected vision. Plaquenil has a better safety profile than chloroquine and is most commonly used today. What is plaquenil prescribed for Hydroxychloroquine - Wikipedia, Plaquenil - FDA prescribing information, side effects and uses Lupus flare while on plaquenil Drugs which may interact with Plaquenil include antacids. botulinum toxins. digoxin. kaolin. magnesium trisilicate. methotrexate. metoprolol. penicillamine. Taking Plaquenil for Rheumatoid Arthritis. Plaquenil What You Need to Know - Kaleidoscope Fighting Lupus. Plaquenil Oral Uses, Side Effects, Interactions.. Plaquenil hydroxychloroquine is an antimalarial medication used to treat or prevent malaria, a disease caused by parasites, which enter the body through the bite of a mosquito. Plaquenil is also used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Plaquenil has a better safety profile than chloroquine and is most commonly used today. When the drugs were first used, the dosages were generally higher than prescribed today, and a peculiar side-effect on the retina of the eye occurred that permanently affected vision. I was really upset about this because the Plaquenil has helped me SO much. I have been off it it a week and I have had a lot of pain. The doctor prescribed 4 mgs of prednisone a day and Tramadol. The tramadol is helping a lot. I'm not sure about the prednisone. My doctor wants to "think" about to do next. I have not been dx w/RA.