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. Side effects of plaquenil for lupus Does plaquenil cause acne Chloroquine: mechanism of drug action and resistance in plasmodium falciparum Frequent fevers, severe chills, bruising, sore throat or mouth ulcers these may be signs of blood reactions Changes in the way your heart beats More severe symptoms of hypoglycaemia, including Plaquenil comes in 200 milligram mg tablets that are taken by mouth. To prevent malaria in adults, two tablets are typically taken once a week, on the same day each week. Sorry you all have had such a hard time with this. I agree Hester, I think the plaquenil does help. Blessings! I had to be in the Sun yesterday, paying bills, and stuff, and as sore started in my mouth, and I thoiuht to myself, "Okay this is it" plaquenil is not going to keep working" but this morning it is gone. 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. Plaquenil sore mouth Ask the Expert Plaquenil and Sjögren’s, Plaquenil Hydroxychloroquine - Side Effects, Dosage. Plaquenil for arthritis pain Plaquenil and Mouth ulcers - from FDA reports Summary Mouth ulcers is found among people who take Plaquenil, especially for people who are female, 50-59 old, have been taking the drug for 6 - 12 months, also take medication Enbrel, and have Osteoporosis. Will you have Mouth ulcers with Plaquenil - eHealthMe. Sores -. Plaquenil Side Effects Common, Severe, Long Term -. Plaquenil side effects,mouth ulcers and sore throat. Sleep walking is not fun Side effects of Plaquenil that are different from Azulfidine include stomach pain or cramps, weight loss, mood changes, nervousness, irritability, or hair loss. Side effects of Azulfidine that are different from Plaquenil include stomach upset, unusual tiredness, white patches or sores inside your mouth or on your lips, or sleep problems. Mouth sores are common ailments that affect many people at some point in their lives. These sores can appear on any of the soft tissues of your mouth, including your lips, cheeks, gums, tongue.