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. Fever from plaquenil Method of action of chloroquine Does plaquenil work SIDE EFFECTS. The following adverse reactions have been identified during post-approval use of PLAQUENIL or other 4-aminoqunoline compounds. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Plaquenil is used in the treatment of sarcoidosis but its main use is in the treatment of malaria. One of the side effects of taking the drug is that it affects eye sight, and eye tests, especially field of vision tests need to be done every six months. In this review, we analyze Plaquenil side effects by the time on the drug, gender and age of the people who have side effects while taking Plaquenil. The review is based on 57,733 people who have side effects while taking the drug from Food and Drug Administration FDA. 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. What are the side effects of the drug plaquenil Plaquenil Uses, Dosage & Side Effects -, Plaquenil Withdrawal – Life As An Anomaly Chloroquine mechanism of action lysosomeWhy chloroquine over other medications Common side effects of Plaquenil include. nausea, vomiting, stomach pain or cramps, loss of appetite, weight loss, diarrhea, dizziness, spinning sensation, headache, ringing in your ears, Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses. Common Plaquenil side effects a study from FDA data.. Long-Term Side Effects of Plaquenil for Rheumatoid.. Alcohol interaction is reported only by a few people who take Plaquenil. We study 48,911 people who have side effects while taking Plaquenil from Food and Drug Administration FDA. Among them, 3 have Alcohol interaction. Find out below who they are, when they have Alcohol interaction and more. Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs. If you have had any eye changes or changes in eyesight due to Plaquenil hydroxychloroquine or drugs like this one. Incidence not known. Continuing ringing or buzzing or other unexplained noise in the ears. feeling of constant movement of self or surroundings. irritability. nausea. nervousness. nightmares. sensation of spinning. shakiness and unsteady walk. uncontrolled eye movements. unsteadiness, trembling, or.