TheraRadar
Data updated: Sep 20, 2026

RYTHMOL (propafenone hydrochloride) · GSK

Cardiovascular Approved 1989-11-27

RYTHMOL is FDA-approved to treat 5 conditions (same as PROPAFENONE HYDROCHLORIDE).

2
Indications
--
Phase 3 Trials
36
Years on Market

Details

Status
Discontinued
First Approved
1989-11-27
Routes
ORAL
Dosage Forms
TABLET

Companies

Active Ingredient: PROPAFENONE HYDROCHLORIDE

RYTHMOL Approval History

1990
1991
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1995
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1998
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2000
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2002
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2026
Original
New Indication
New Form
Label Update
42 FDA actions from 1989 to 2018 · 1 indication expansions
Nov 2018 SUPPL
Label · Labeling
Jul 2014 SUPPL
Mfg · Manufacturing (CMC)
Mar 2013 SUPPL
Label · Labeling

What RYTHMOL Treats

5 indications

RYTHMOL is approved for 5 conditions since its original approval in 1989. These indications span multiple therapeutic areas including oncology, immunology, and more.

Same approved indications as PROPAFENONE HYDROCHLORIDE (same active ingredient).

Source: FDA Label
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Active Pipeline

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Ongoing clinical trials by development phase

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Key Completed Trials

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Completed studies with published results, ranked by significance

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Trial Timeline

Full development history with FDA approval milestones

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Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

RYTHMOL FDA Label Details

Indications & Usage

FDA Label (PDF)

RYTHMOL is FDA-approved to treat 5 conditions — same approved indications as PROPAFENONE HYDROCHLORIDE.

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Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.