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. Does plaquenil interact with prednisone Plaquenil fk Hydroxychloroquine sulphate indications 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. Consumer ratings and reviews for PLAQUENIL. Includes 655 patient ratings with average score of 3.2, comments, side effects, dosage, sex, age, time taken. Plaquenil is generally well-tolerated, but side effects are possible. Common side effects linked to Plaquenil include nausea and diarrhea. Taking the medication with food eases nausea for most people taking the drug. Less common side effects include skin rashes, hair thinning, and weakness. 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. Plaquenil side effects constipation Evaluations from Patients who take Hydroxychloroquine., PLAQUENIL Side Effects, Reviews by Patients - Hydroxychloroquine success storiesHow does plaquenil affect sleepLife extension chloroquineAao 2016 plaquenil guidelines What are the possible side effects of antimalarial drugs? Plaquenil is most often well-tolerated but, like with any drug, side effects are possible. Most people about 90% who take antimalarial medications experience no side effects. If common side effects do occur, they are usually minor and last only for a short period of time. Plaquenil What You Need to Know - Kaleidoscope Fighting Lupus. Taking Plaquenil for Rheumatoid Arthritis. Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses. Hydroxychloroquine Plaquenil is a drug that is classified as an anti-malarial drug. Plaquenil is prescribed for the treatment or prevention of malaria. It is also prescribed for the treatment of rheumatoid arthritis, lupus, and the side effects of lupus such as hair loss, joint pain, and more. Plaquenil can cause serious side effects when used in high doses for chronic diseases such as RA over the long term. The New Zealand Dermatological Society recommends that to decrease the risk of retina damage, no more than 200mg of Plaquenil should be taken a day, and a dose of 400mg per day should be taken no longer than a few weeks. For the Consumer. 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.