The information provided here is for informational purposes only. This tool may not cover all possible drug interactions. Plaquenil pregnancy category Chloroquine toxicity dose Toxicity of hydroxychloroquine Drug interactions are reported among people who take Plaquenil and Flecainide acetate together. This study is created by eHealthMe based on reports of 26 people who take Plaquenil and Flecainide acetate from Food and Drug Administration FDA, and is updated regularly. eHealthMe has been monitoring drugs and supplements since 2008. Ventricular arrhythmias and torsade de pointes TdP have been reported with the use of hydroxychloroquine. Flecainide is a Class IC antiarrhythmic associated with a possible risk for QT prolongation and/or TdP; flecainide increases the QT interval, but largely due to prolongation of the QRS interval. Use WebMD’s Drug Interaction Checker tool to find and identify potentially harmful and unsafe combinations of prescription medications by entering two or more drugs in question. Although we attempt to provide accurate and up-to-date information, no guarantee is made to that effect. Please check with a physician if you have health questions or concerns. Interactions between flecainide and hydroxychloroquine Table of drug interactions - Depression in Adults with a., Flecainide Acetate flecainide acetate dose, indications. Sjogren's pregnancy heart block hydroxychloroquinePlaquenil side effects weightDo mucinex and plaquenil interact togetherSymptoms of eye problems from plaquenil Flecainide Antiarrhythmic Medications Flecainide brand name Tambocor is used to treat irregular heartbeats arrhythmias, maintain a normal heart rate or slow an overactive heart. It relaxes the heart and improves its pumping action. Flecainide Antiarrhythmic Medications - Cleveland Clinic. Drug Interaction Checker - Find Interactions Between.. Flecainide acetate and Hydroxychloroquine sulfate drug.. Flecainide oral tablet can interact with other medications, vitamins, or herbs you may be taking. An interaction is when a substance changes the way a drug works. This can be harmful or prevent. No information is available on the relationship of age to the effects of flecainide in elderly patients. However, elderly patients are more likely to have age-related kidney problems, which may require an adjustment in the dose for patients receiving flecainide. Drug Interactions. Hydroxychloroquine Hydroxyzine Ibutilide Iloperidone. Other Interactions. Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.