DRUG INTERACTIONS: Your doctor or pharmacist may already be aware of any possible drug interactions and may be monitoring you for them. Do not start, stop, or change the dosage of any medicine before checking with your doctor or pharmacist first.This drug should not be used with the following medications because very serious interactions may occur: bepridil, cisapride, disopyramide, dofetilide, droperidol, fingolimod, halofantrine, ibutilide, mizolastine, pimozide, propafenone, ranolazine, sertindole, ziprasidone.If you are currently using any of these medications listed above, tell your doctor or pharmacist before starting procainamide.Many drugs besides procainamide and those listed above may affect the heart rhythm (QT prolongation), including amiodarone, quinidine, sotalol, flecainide, haloperidol, amitriptyline, levofloxacin, ciprofloxacin, macrolide antibiotics (such as clarithromycin, erythromycin), among others. Therefore, before using procainamide, report all medications you are currently using to your doctor or pharmacist.Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use, especially of: cimetidine, ranitidine, alcohol, trimethoprim, succinylcholine.Certain drugs may interfere with lab blood tests for procainamide (lidocaine, meprobamate, propranolol). Tell laboratory personnel and all your doctors if you are taking these medications.This document does not contain all possible interactions. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share the list with your doctor and pharmacist.
Quick GuideHeart Disease: Symptoms, Signs, and Causes
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