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FLECAINIDE ACETATE vs PROPAFENONE HYDROCHLORIDE

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 21, 2026·How we rate

Possible drug interaction. FLECAINIDE ACETATE and PROPAFENONE HYDROCHLORIDE are different prescription medicines. Combining or switching between them can cause interactions — talk to a pharmacist or prescriber before making changes. This page is not medical advice.

flecainide acetatepropafenone hydrochloride

Rating

70/100
72/100

Pharmacy pays

~$5.39 /30
~$10.51 /30

Type

RX
RX

Active ingredient

FLECAINIDE ACETATE
PROPAFENONE HYDROCHLORIDE

Manufacturer

Ani Pharms
Rising

Dosage forms

Tablet
Capsule, extended release, Tablet

Drug class

Antiarrhythmic
Antiarrhythmic

Boxed warning

None
Boxed warning

Half-life

—
about 2 to 10 hours (immediate-release) in the ~90% of adults who are extensive CYP2D6 metabolizers

Treats

Atrial Fibrillation, Supraventricular Tachycardia, Ventricular Tachycardia
Atrial Fibrillation, Supraventricular Tachycardia

Frequently asked questions

Which is better-rated, Flecainide Acetate or Propafenone Hydrochloride?

By our independent rating, Propafenone Hydrochloride scores higher — 3.6 vs 3.5 out of 5 for Flecainide Acetate. Ratings are based on FDA regulatory (recall-safety) data.

Which is cheaper, Flecainide Acetate or Propafenone Hydrochloride?

Flecainide Acetate costs pharmacies less to acquire — about $5.39 vs $10.51 for a 30-count supply, per the CMS NADAC survey. That gap is in the pharmacy's cost of goods, not necessarily in what you pay: your price is set afterwards by your insurer and the pharmacy.

What is the difference between Flecainide Acetate and Propafenone Hydrochloride?

Flecainide Acetate contains Flecainide Acetate, while Propafenone Hydrochloride contains Propafenone Hydrochloride — they have different active ingredients.

Ratings are based on FDA regulatory (recall-safety) data. This comparison is for general reference only — not medical advice. Always consult a licensed professional before choosing or switching a medication.