Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Plaquenil related toxicity Tab hydroxychloroquine 200 mg How quickly does plaquenil work Retinal plaquenil toxicity I don't know if anyone can help as this isn't technically lupus related. I've been on plaquenil for 6 months for suspected Sjogren's syndrome I don't have antibodies for Sjorgren's or Lupus but I do have Hashimoto's and have all the symptoms for Sjorgren's so the rheumatologist suggested a trial of plaquenil. Plaquenil is the brand name for the prescription drug hydroxychloroquine. It's used to treat and prevent malaria infection, and to reduce symptoms and progression of autoimmune diseases such as lupus, rheumatoid arthritis, and others. Medscape - Indication-specific dosing for Plaquenil hydroxychloroquine sulfate, frequency-based adverse effects, comprehensive interactions, contraindications, pregnancy & lactation schedules, and cost information. 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 derived from Treating Lupus with Anti-Malarial Drugs Johns Hopkins Lupus., Plaquenil Hydroxychloroquine - Side Effects, Dosage. Causes for plaquenil to stop working Plaquenil is most known for its original purpose treating and preventing malaria. Malaria is a disease caused by parasites that can enter the body through a mosquito bite. The essential ingredient, known as quinine, is derived from the bark of the cinchona plant. Plaquenil Hydroxychloroquine for Lupus – LupusCorner. Plaquenil hydroxychloroquine sulfate dosing, indications.. Wild Yam Uses, Side Effects, Interactions, Dosage, and Warning. 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 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. Hydroxychloroquine Plaquenil, chloroquine Aralen, and quinacrine Atabrine are medications that were originally used to prevent or treat malaria. However, during World War II it was also found that these medications were effective in treating the symptoms of lupus.