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 mayoclinic Plaquenil and remicade Learn about side effects, warnings, dosage, and more. Hydroxychloroquine Plaquenil is used to treat malaria, lupus, and rheumatoid arthritis. low blood sugar. Your doctor may need to. Corticosteroids and salicylates may be used in conjunction with PLAQUENIL, and they can generally be decreased gradually in dosage or eliminated after a maintenance dose of PLAQUENIL has been achieved. HOW SUPPLIED. PLAQUENIL tablets are white, to off-white, film coated tablets imprinted “PLAQUENIL” on one face in black ink. Each tablet. Methods. We analyzed data from 48 consecutive patients with well-documented PCT to characterize susceptibility factors; patients were treated with phlebotomy 450 mL, every 2 weeks until they had serum ferritin levels of 20 ng/mL or low-dose hydroxychloroquine 100 mg orally, twice weekly, until at least 1 month after they had normal plasma levels of porphyrin. Plaquenil is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. This medicine is not effective against all strains of malaria. Low dose of plaquenil Plaquenil Dosage Guide -, Plaquenil Hydroxychloroquine Uses, Dosage, Side Effects. Plaquenil and joint repla Hydroxychloroquine may cause some people to be agitated, irritable, or display other abnormal behaviors. It may also cause some people to have suicidal thoughts and tendencies, or to become more depressed. If you or your caregiver notice any of these side effects, tell your doctor right away. This medicine may cause hypoglycemia low blood sugar. Hydroxychloroquine Oral Route Precautions - Mayo Clinic. Low-Dose Hydroxychloroquine Is as Effective as Phlebotomy in Treatment.. Plaquenil Hydroxychloroquine MyLupusTeam. In rare cases, hydroxychloroquine can cause visual changes or loss of vision. Such vision problems are more likely to occur in individuals taking high doses for many years, individuals 60 years or older, or those with significant kidney disease. At the recommended dose, development of visual problems due to the medication is rare. 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. A cookie-cutter approach to dosing Plaquenil hydroxychloroquine, Sanofi-Aventis, an anti-malarial drug that has been used as a treatment for systemic lupus erythematosus and rheumatoid arthritis.