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. Hydro chloroquine Plaquenil withdrawal side effects Plaquenil fda wanting to remove it 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. 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. Consumer information about the medication HYDROXYCHLOROQUINE - ORAL Plaquenil, includes side effects, drug interactions, recommended dosages, and storage information. Read more about the prescription drug HYDROXYCHLOROQUINE - ORAL. 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. Hydroxychloroquine overdose side effects Hydroxychloroquine MedlinePlus Drug Information, Hydroxychloroquine Side Effects - Delayed side effects plaquenilMolecular weight of chloroquine phosphateChloroquine malaria life cycle treatmentChloroquine online pharmacyChloroquine how effective against malaria Plaquenil or hydroxychloroquine is under the quinolone family. These medications are initially used in the prophylaxis and treatment of malaria. Plaquenil has replaced chloroquine because it produces less retinal side effects. Plaquenil Toxicity - Symptoms, Treatment, Risk Factors.. HYDROXYCHLOROQUINE - ORAL Plaquenil side effects.. Plaquenil - Side Effects, Uses, Dosage, Overdose.. Sep 13, 2019 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. But this medicine does not work for all strains of the disease. Hydroxychloroquine is also used for the treatment of rheumatoid arthritis. Symptoms of hydroxychloroquine overdose. Hydroxychloroquine overdose needs to be treated quickly. It is must to get an emergency medical help if there arise certain symptoms. Note This document contains side effect information about hydroxychloroquine. Some of the dosage forms listed on this page may not apply to the brand name Plaquenil. For the Consumer. Applies to hydroxychloroquine oral tablet. Along with its needed effects, hydroxychloroquine the active ingredient contained in Plaquenil may cause some unwanted effects.