RYTHMOL vs RYTHMOL SR
Independent side-by-side comparison.
Rating
70/100
70/100
Pharmacy pays
~$10.51 /30
~$10.51 /30
Type
RX
RX
Active ingredient
PROPAFENONE HYDROCHLORIDE
PROPAFENONE HYDROCHLORIDE
Manufacturer
Dosage forms
Tablet
Capsule, extended release
Drug class
Antiarrhythmic
Antiarrhythmic
Boxed warning
None
None
Half-life
about 2 to 10 hours (immediate-release) in the ~90% of adults who are extensive CYP2D6 metabolizers
about 2 to 10 hours (immediate-release) in the ~90% of adults who are extensive CYP2D6 metabolizers
Treats
Atrial Fibrillation, Supraventricular Tachycardia
Atrial Fibrillation, Supraventricular Tachycardia
Frequently asked questions
Which is better-rated, Rythmol or Rythmol SR?
Rythmol and Rythmol SR are tied at 3.5 out of 5 by our independent rating.
Which is cheaper, Rythmol or Rythmol SR?
Pharmacies pay about the same to acquire either one — roughly $10.51 for a 30-count supply, per the CMS NADAC survey. That is not what you will be charged: your price is set by your insurer and the pharmacy, not by what the drug cost them.
What is the difference between Rythmol and Rythmol SR?
Both Rythmol and Rythmol SR share the active ingredient Propafenone Hydrochloride.
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.