Flecainide Oral

In Depth

Generic Name: FLECAINIDE - ORAL
Pronounced: (fleck-UH-nide)

Flecainide Oral 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:

disopyramide
dofetilide
halofantrine
lumefantrine
pimozide
arbutamine
saquinavir
cisapride
gadoxetate
mizolastine
lopinavir/ritonavir
tipranavir

Other drugs besides flecainide and those listed above that may affect the heart rhythm (QTc prolongation in the EKG) include sotalol, procainamide, droperidol, ziprasidone, ranolazine, levofloxacin, and erythromycin, among others. QTc prolongation can infrequently result in a serious (rarely fatal) irregular heartbeat. Consult your doctor or pharmacist for more details and for instructions on how you may minimize the risk of this effect.

If you are currently using any of these medications listed above, tell your doctor or pharmacist before starting flecainide.

Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use, especially of:

amiodarone
cimetidine
clozapine
quinidine
digoxin
verapamil
beta blockers (e.g., propranolol, metoprolol)
barbiturates (e.g., phenobarbital)
carbamazepine
phenytoin
drugs that make the urine more acid (e.g., large doses of vitamin C, methionine, ammonium chloride)
drugs that make the urine more alkaline (e.g., sodium bicarbonate)

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.