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. What is plaquenil toxicity Plaquenil and effexor Plaquenil pregnancy rheumatoid arthritis PLAQUENIL prescription and dosage sizes information for physicians and healthcare professionals. Pharmacology, adverse reactions, warnings and side effects. What is Plaquenil Hydroxychloroquine? Learn about drug imprint, side effects, uses treating, dosage, interaction, overdose, and warnings. Hydroxychloroquine Plaquenil is used to treat malaria, lupus, and rheumatoid arthritis. Learn about side effects, warnings, dosage, and more. 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. Drug warnings for plaquenil Hydroxychloroquine Side Effects -, Plaquenil Hydroxychloroquine Side effects, Images, Uses, Dosage. Aralen doseIngredients hydroxychloroquineDiagnosis code for plaquenil screening Applies to hydroxychloroquine oral tablet. Along with its needed effects, hydroxychloroquine may cause some unwanted effects. 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 Hydroxychloroquine Side Effects Common, Severe, Long Term -. Hydroxychloroquine Side Effects, Dosage, Uses, and More. PLAQUENIL Warnings Pregnancy & Lactation RxSaver by RetailMeNot. Do not share your drugs with others and do not take anyone else's drugs. Some drugs may have another patient information leaflet. Check with your pharmacist. If you have any questions about Plaquenil hydroxychloroquine, please talk with your doctor, nurse, pharmacist, or other health care provider. Drugs that prolong QT interval and other arrhythmogenic drugs Plaquenil prolongs the QT interval and should not be administered with other drugs that have the potential to induce cardiac arrhythmias. Also, there may be an increased risk of inducing ventricular arrhythmias if Plaquenil is used concomitantly with other arrhythmogenic drugs. Medscape - Indication-specific dosing for Plaquenil hydroxychloroquine sulfate, frequency-based adverse effects, comprehensive interactions, contraindications, pregnancy & lactation schedules, and cost information.