Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Pill plaquenil generic dog bone shaped Chloroquine plaquenil Chloroquine work in the body gov The study is based on hydroxychloroquine sulfate the active ingredients of Plaquenil and Plaquenil the brand name. Other drugs that have the same active ingredients e.g. generic drugs are not considered. Dosage of drugs is not considered in the study. 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 an investigational drug that is categorized as an immune modulator. 2 Immune modulators also called immunomodulators are substances that help to activate, boost, or restore normal immune function. 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. Is hydroxychloroquine sulfate an immune suppressing drug Hydroxychloroquine Dosage Guide with Precautions -, Hydroxychloroquine Plaquenil Adverse effects of plaquenil menstrual cyclePlaquenil vs nsaids for arthritisCan i get plaquenil in mexicoChloroquine lysosomal inhibitor transfection Drug interactions are reported among people who take Hydroxychloroquine sulfate and Doxycycline together. This study is created by eHealthMe based on reports of 85 people who take Hydroxychloroquine sulfate and Doxycycline from Food and Drug Administration FDA, and is updated regularly. Hydroxychloroquine sulfate and Doxycycline drug interactions - eHealthMe. Hydroxychloroquine Clinical Trials, Side Effects AIDSinfo. Does hydroxychloroquine suppress the immune system.. It is listed as having a mild immunosuppressant effect in my book on RA, but one of the reasons for the blood tests is to check that your immune system is not being suppressed too much eg checking your white blood cell levels, so you shouldn't be completely vulnerable. Aug 02, 2010 Basically, the immune system is a bit out of control. Plaquenil works by suppressing the immune system. Unfortunately you can't tell it to attack just the germs so you suppress all of its function to spare your healthy tissue- in your husband's case, his eyes, mouth, throat. NOTE Plaquinil and hydroxychloroquine are essentially the same drug. The anti-inflammatory property of hydroxychloroquine could also make the drug more effective since some patients with COVID-19 have had overactive immune systems that result in a cytokine storm.