These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Hydroxychloroquine 200 mgta Will hydroxychloroquine help autoimmune liver disease Chloroquine phosphate resistant malaria Hydroxychloroquine toxicity oct Plaquenil toxicity isn’t even in the top 10, or the top 100” if you’re looking at incidence, he said. “It’s a pretty rare thing.” Nevertheless, he urged doctors to master the Academy’s new guidelines, because the effects from chloroquine and hydroxychloroquine, when they do occur, are severe and often irreversible. A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including rash, itching/swelling especially of the face/tongue/throat, dizziness, trouble breathing. This is not a complete list of possible side effects. I recently decided to stop taking Plaquenil because I was having constant chest pains even more so than I usually have due to Lupus. Since I have not taken it my chest feels so much better which is odd because chest pain is not listed as a side effect. Also I noticed that the Plaquenil I think was making me feel different but not in a good way. If you notice any other effects, check with your healthcare professional. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them: Other side effects not listed may also occur in some patients. Stopping plaquenil effects Long-Term Side Effects of Plaquenil for Rheumatoid., Plaquenil Oral Uses, Side Effects, Interactions. Plaquenil lyme treatmentChloroquine synthesis pptPlaquenil black box warningCan hydroxychloroquine stop osseointegration Tell your doctor if any of these symptoms are severe or do not go away headache. dizziness. loss of appetite. nausea. diarrhea. stomach pain. vomiting. skin rash. Hydroxychloroquine MedlinePlus Drug Information. Had to stop taking Plaquenil -. Will you have Withdrawal syndrome with Plaquenil - eHealthMe. Tell your doctor if any of the following side effects, as they may be indications of a more serious reaction Headache. Loss of appetite. Dizziness. Nausea. Diarrhea, vomiting, or stomach pain. Skin rash. Common side effects may include headache, dizziness, ringing in your ears; nausea, vomiting, stomach pain; loss of appetite, weight loss; mood changes, feeling nervous or irritable; skin rash or itching; or. hair loss. I have read about people stopping P & flaring up. Those who stopped it abruptly had real problems similar to what you are experiencing. If you really need to get off it, I would taper down slowly, very slowly. There is a similar posting on Healthunlocked, "Why oh why did u stop taking plaquenil." You may want to check it out.