Hydroxychloroquine is available as the brand-name drug Plaquenil. Generic drugs usually cost less than the brand-name version. Hydroxychloroquine may be used as part of a combination therapy. Starting plaquenil Plaquenil dose for rheumatoid arthritis Efficacy and Safety of Hydroxychloroquine for Treatment of Pneumonia Caused by 2019-nCoV HC-nCoV The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U. S. Federal Government. Feb 29, 2020 Hydroxychloroquine and chloroquine are medications traditionally prescribed to prevent or treat malaria infections. In certain countries and parts of the world where malaria is still present, a person can easily catch malaria from a seemingly insignificant mosquito bite. 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. Hydroxychloroquine is used to treat lupus erythematosus and rheumatoid arthritis. It isn’t fully understood how this drug works to treat lupus erythematosus or rheumatoid arthritis. That means you may need to take it with other drugs. It treats malaria by killing the parasites that cause the disease. Hydroxychloroquine and smoking Hydroxychloroquine attenuates cigarette smoke induced., What Is the Difference between Hydroxychloroquine and. Hydroxychloroquine dialysisIcd 10 code for hydroxychloroquineFda approval chloroquine-primaquine Although lupus skin disease may be effectively treated with antimalarial medications, smoking has been shown to interfere with the benefits of drugs such as hydroxychloroquine Plaquenil® and chloroquine Aralen®. Smoking and lupus It's never too late to quit Lupus.. Hydroxychloroquine MedlinePlus Drug Information. Hydroxychloroquine Uses, Dosage & Side Effects -. Hydroxychloroquine has a lower risk of ocular toxicity, both corneal and retinal, compared with chloroquine. Smoking possibly reduces the efficacy of hydroxychloroquine, although studies have not usually confirmed this clinical impression. Hydroxychloroquine is considered safer than chloroquine during pregnancy and lactation. 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. 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.