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. What is the highest doesagewith plaquenil Symptoms of plaquenil toxicity Syncope, also known as fainting, is a loss of consciousness and muscle strength characterized by a fast onset, short duration, and spontaneous recovery. It is caused by a decrease in blood flow to the brain, typically from low blood pressure. There are sometimes symptoms before the loss of consciousness such as lightheadedness, sweating, pale skin, blurred vision, nausea, vomiting, or feeling. Plaquenil hydroxychloroquine belongs to a group of medicines called quinolines. 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 hydroxychloroquine sulfate tablets is indicated for the treatment of rheumatoid arthritis, and discoid and systemic lupus erythematosus, in patients who have not responded satisfactorily to drugs with less potential for serious side effects. 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 and syncope Life Threatening Severe QTc Prolongation in Patient with Systemic Lupus., Plaquenil Uses, Dosage & Side Effects - Plaquenil and gum diseaseCelebrex and plaquenil Note This document contains side effect information about hydroxychloroquine. Some of the dosage forms listed on this page may not apply to the brand name Plaquenil. For the Consumer. Applies to hydroxychloroquine oral tablet. Along with its needed effects, hydroxychloroquine the active ingredient contained in Plaquenil may cause some. Plaquenil Side Effects Common, Severe, Long Term -. Plaquenil Hydroxychloroquine Sulfate. Long-Term Side Effects of Plaquenil for Rheumatoid.. Plaquenil and Fainting - a study from real-world data. Summary Fainting is found among people who take Plaquenil, especially for people who are female, 60+ old, have been taking the drug for 5 - 10 years, also take medication Humira, and have High blood pressure. Syncope In A Patient With Temporal Lobe Epilepsy. Seizure meds and plaquenil. The mission of the Epilepsy Foundation is to lead the fight to overcome the. Syncope is a symptom that can be due to several causes, ranging from benign to life-threatening conditions. Many non life-threatening factors, such as overheating, dehydration, heavy sweating, exhaustion or the pooling of blood in the legs due to sudden changes in body position, can trigger syncope.