It does not work against certain types of malaria (chloroquine-resistant). The United States Center for Disease Control provides updated guidelines and travel recommendations for the prevention and treatment of malaria in different parts of the world. Hydroxychloroquine qt prolongation Plaquenil how long does it take to work Apr 10, 2019 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 eye problems. Posted by Wesbig @wesbig, Jul 25, 2016. I was wondering if anyone experienced blurry vision on Plaquenil. I have been on Plaquenil for about a month. Every now and then I notice some of the words on the television are blurry, then there are other times my eyes are fine. Should this be a big concern? Voice problems are often mild and can be treated at home, but sudden speech problems are more likely to need urgent medical care. Voice problems are caused by changes in a person’s vocal cords. This medication is also used, usually with other medications, to treat certain auto-immune diseases (lupus, rheumatoid arthritis) when other medications have not worked or cannot be used. Discuss the most recent information with your doctor before traveling to areas where malaria occurs. Plaquenil and voice issues How Lupus Affects the Lungs Johns Hopkins Lupus Center, Plaquenil eye problems Mayo Clinic Connect What does hydroxychloroquine do for lupus It's rarer, but you could have other problems like inflammation in your lungs, liver, and kidneys. Some people also say they feel tired and have numbness and tingling in some parts of their body. Sjogren's Syndrome Symptoms, Causes, Diagnosis, Treatment. Voice Problems and Alzheimer’s Disease Guidance and Tips. Long-Term Side Effects of Plaquenil for Rheumatoid.. Coronary artery problems could exist. Angina will often present throat pain, so patients with a lupus sore throat may actually need a cardiac assessment. Lupus patients can be at risk of Hashimoto’s thyroiditis an autoimmune thyroid condition. Sore throats in lupus can often be a symptom of this. Side Effects Nausea, stomach cramps, loss of appetite, diarrhea, dizziness, or headache may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly. Remember. Plaquenil is the brand name for the prescription drug hydroxychloroquine. 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.