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. 98 hydroxychloroquine Plaquenil cost increase Chloroquine diphosphate crystalline Can you take potassium supplements while on plaquenil Sep 13, 2019 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 Cardiac Effects, including Cardiomyopathy and QT prolongation Postmarketing cases of life-threatening and fatal cardiomyopathy have been reported with use of Plaquenil as well as with use of chloroquine. Patients may present with atrioventricular block, pulmonary hypertension, sick sinus syndrome or with cardiac complications. Hydroxychloroquine HCQ-induced cardiomyopathy is one of the rare but severe complications following prolonged HCQ use. However, the exact mechanism of HCQ cardiotoxicity remains unclear and it is difficult to identify risk factors. We present a case. 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 cardiomyopathy Hydroxychloroquine cardiotoxicity presenting as a rapidly., Plaquenil - FDA prescribing information, side effects and uses Dose of chloroquine at 4 0 year Hydroxychloroquine is an antimalarial drug that is also used in the treatment of various rheumatic diseases including systemic lupus erythematous SLE. Various adverse reactions include skin rash, diarrhea, nausea and retinopathy were reported 1. Hydroxychloroquine induced myopathy is a rare side effect and reported prevalence is up to 6.7% 2. A Rare but Reversible Cause of Myopathy.. Hydroxychloroquine-induced cardiomyopathy and heart.. Hydroxychloroquine-Induced Cardiomyopathy Circulation.. Cardiac disorders Cardiomyopathy which may result in cardiac failure and in some cases a fatal outcome see WARNINGS and OVERDOSAGE. PLAQUENIL prolongs the QT interval. Ventricular arrhythmias and torsade de pointes have been reported in patients taking PLAQUENIL see OVERDOSAGE and DRUG INTERACTIONS. INTRODUCTION Hydroxychloroquine-induced cardiomyopathy is a rare and life-threatening condition characterized by restrictive hemodynamics. Drug cessation and aggressive afterload reduction halts disease allowing for clinical recovery. We present a 50-year-old woman with hydroxychloroquine-induced restrictive cardiomyopathy and correlate clinical, echocardiographic, and right heart. Plaquenil is the brand name for the prescription drug hydroxychloroquine. It's used to treat and prevent malaria infection, and to reduce symptoms and progression of autoimmune diseases such as lupus, rheumatoid arthritis, and others.