PRONESTYL vs TIKOSYN

Independent side-by-side comparison.

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

Possible drug interaction. PRONESTYL and TIKOSYN 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.

Attribute	PRONESTYL	TIKOSYN
Rating	New	60/100
Pharmacy pays	—	~$5.80 /30
Type	RX	RX
Active ingredient	PROCAINAMIDE HYDROCHLORIDE	DOFETILIDE
Manufacturer	Apothecon	Pfizer
Dosage forms	Capsule, Tablet, Injectable	Capsule
Drug class	Antiarrhythmic	Antiarrhythmic
Boxed warning	None	Boxed warning
Treats	Atrial Fibrillation, Atrial Flutter, Supraventricular Tachycardia	Atrial Fibrillation, Atrial Flutter

pronestyl tikosyn

Rating

New

60/100

Pharmacy pays

—

~$5.80 /30

Type

Active ingredient

PROCAINAMIDE HYDROCHLORIDE

DOFETILIDE

Manufacturer

Apothecon

Pfizer

Dosage forms

Capsule, Tablet, Injectable

Capsule

Drug class

Antiarrhythmic

Boxed warning

None

Boxed warning

Treats

Atrial Fibrillation, Atrial Flutter, Supraventricular Tachycardia

Atrial Fibrillation, Atrial Flutter

Frequently asked questions

What is the difference between Pronestyl and Tikosyn?

Pronestyl contains Procainamide Hydrochloride, while Tikosyn contains Dofetilide — 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.