Although not all of these side effects may occur, if they do occur they may need medical attention. Check with your doctor immediately if any of the following side effects occur while taking hydroxychloroquine: Incidence not known Some side effects of hydroxychloroquine may occur that usually do not need medical attention. Plaquenil withdrawl Tongue swelling from plaquenil Plaquenil urticaria treatment What is an aphthous ulcer. An aphthous ulcer is an ulcer that forms on the mucous membranes. They are also called aphthae, aphthosis, aphthous stomatitis and canker sores. An aphthous ulcer is typically a recurrent round or oval sore or ulcer inside the mouth on an area where the skin is not tightly bound to the underlying bone, such as on the inside of the lips and cheeks or underneath the. Plaquenil tablets contain the active ingredient hydroxychloroquine, which is a type of medicine called a disease-modifying anti-rheumatic drug DMARD. It is used to treat rheumatoid arthritis. They are also referred to as mouth ulcers or oral lesions, which can occur in about 40-50 percent of individuals with lupus. Mouth sores due to lupus are not considered life-threatening. However, they can lead to discomfort and low self-esteem, which can affect the overall health of the affected individual. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. These side effects may go away during treatment as your body adjusts to the medicine. Ulcer plaquenil Plaquenil Oral Uses, Side Effects, Interactions, Pictures., Plaquenil hydroxychloroquine - Netdoctor Novo chloroquineChloroquine inhibit the novel heme polymerase enzymePlaquenil photosensitivity rash cheeks Hydroxychloroquine Plaquenil is used to treat malaria, lupus, and rheumatoid arthritis. Learn about side effects, warnings, dosage, and more. Hydroxychloroquine Side Effects, Dosage, Uses, and More. Dealing with Lupus Mouth Sores Causes, Treatment, and Prevention. Plaquenil Drug and Medication User Reviews on RxList. Nov 09, 2018 Hydroxychloroquine 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. Consumer Medicine Information CMI about Plaquenil hydroxychloroquine sulfate intended for persons living in Australia. Oral mouth and nasal nose ulcers are one of the most common features of lupus occurring in around 45% of people who have SLE. Having mucosal ulcers in the mouth or nose is one of the classification criteria used to diagnose SLE.