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. Malaria is spread by mosquitoes, which transmit the parasites that cause the infection, usually in tropical and subtropical parts of the world. Plaquenil and high blood sugar Blood test for plaquenil Chloroquine show up on a drug test Plaquenil is a prescription medication used to reduce pain and swelling caused by diseases of the immune system such as rheumatoid arthritis, juvenile arthritis, and systemic lupus erythematosus SLE. This medication belongs to a group of drugs called DMARDs disease modifying antirheumatic drugs which work by suppressing the excessive activity of the immune system. Apparently, the Plaquenil therapy, a drug also used to treat autoimmune diseases like lupus and rheumatoid arthritis, might have undesirable effects, including overdoses. Dosage for rheumatoid arthritis Adult dosage ages 18 years and older Typical starting dosage 400–600 mg per day, given as a single daily dose or in two 2 divided doses. For example, it may be combined with an antibiotic to treat chronic Q-fever, which humans usually catch from farm animals or raw milk. Plaquenil is used to treat other types of infections too. Plaquenil dosage rheumatoid arthritis Long-Term Side Effects of Plaquenil for Rheumatoid Arthritis, France cautiously exploring coronavirus treatment based on. Plaquenil and bradycardiaPlaquenil slows lupusPlaquenil and elective surgeryPlaquenil ra forum What Exactly Is Hydroxychloroquine, The Drug That Is Being Tested As The First Potential Coronavirus Treatment. Sai Balasubramanian. rheumatoid arthritis, Sjogren’s Syndrome. What Exactly Is Hydroxychloroquine, The Drug That Is Being.. Hydroxychloroquine Side Effects, Dosage, Uses, and More. Hydroxychloroquine - Wikipedia. Hydroxychloroquine Plaquenil is primarily used in combination with other drugs, including methotrexate and/or sulfasalazine for moderate to severe Rheumatoid Arthritis. It is only prescribed alone in patients with very mild symptoms, who are RF negative and have non-erosive disease. According to the American College of Rheumatology, hydroxychloroquine Plaquenil, is a “disease-modifying anti-rheumatic drug DMARD,” meaning that it helps reduce the pain and swelling that come with arthritis. It can also reduce the incidence of joint damage, thus lessening the risk of developing a long-term disability from complications of RA. The recommended adult dose for rheumatoid arthritis is 400-600 mg daily for 4-12 weeks followed by 200-400 mg daily. Systemic lupus erythematosus is treated with 400 mg once or twice daily for several weeks then 200-400 mg daily. Hydroxychloroquine should be taken with food or milk in order to reduce stomach upset.