Rythmol Sr Oral Capsule, Extended Release 225Mg Drug Medication Dosage Information
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Rythmol SR: Oral capsule, extended release (225mg)

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Rythmol SR 225mg Cap
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Rythmol SR 225mg Cap
GlaxoSmithKline Group of Companies
Pill Identification: LOGO Reliant 225 

What is this Medicine?

PROPAFENONE (proe pa FEEN one) is an antiarrhythmic agent. This medicine is used to prevent a type of abnormal heart rhythm called atrial fibrillation.

CVS Pharmacy Patient Statistics for Rythmol SR: Oral capsule, extended release(225mg)
Generic vs. Brand Name Usage*
*Brand contains same active ingredient but may not represent FDA-approved generic equivalent
Usage By Strength
In-Depth Information
Select a Medication

Rythmol SR 225mg Sustained-Release Capsule

NDC: 001730823
  • Prescription Required
  • Not a Controlled Drug
    (CSA Schedule)
  • FDA Approved




FDA approved for the following conditions:
Atrial Fibrillation

Sometimes used for but not FDA approved for the following conditions:
Supraventricular Arrhythmias

Storage Information
Store at 77 degrees F; excursions permitted to 59-86 degrees F
Rythmol SR 225mg Sustained-Release Capsule

Reported Side Effects for Rythmol SR 225mg Sustained-Release Capsule

Flushing Incidence:
<1.0%*
Severity: MILD
Onset: RAPID
Elevated Hepatic Enzymes Incidence:
<1.0%*
Severity: MODERATE
Onset: DELAYED
Bruise Incidence:
<1.0%*
Severity: MILD
Onset: DELAYED
Confusion Incidence:
<1.0%*
Severity: MODERATE
Onset: EARLY
Psychosis Incidence:
<1.0%*
Severity: MODERATE
Onset: EARLY
Muscle Cramps Incidence:
<1.0%*
Severity: MILD
Onset: DELAYED
Low White Blood Cell Counts Incidence:
<1.0%*
Severity: MODERATE
Onset: DELAYED
Liver Infection Incidence:
<1.0%*
Severity: MODERATE
Onset: DELAYED
Cholestasis Incidence:
<1.0%*
Severity: MODERATE
Onset: DELAYED
Decreased Memory Incidence:
<1.0%*
Severity: MODERATE
Onset: DELAYED
Visual Impairment Incidence:
<1.0%*
Severity: SEVERE
Onset: EARLY
Bruises Incidence:
<1.0%*
Severity: MILD
Onset: DELAYED
Paresthesias Incidence:
<1.0%*
Severity: MILD
Onset: DELAYED
Eye Irritation Incidence:
<1.0%*
Severity: MILD
Onset: RAPID
Impotence (erectile Dysfunction) Incidence:
<1.0%*
Severity: MODERATE
Onset: DELAYED
Itching Incidence:
<1.0%*
Severity: MILD
Onset: RAPID
Nephrotic Syndrome Incidence:
<1.0%*
Severity: SEVERE
Onset: DELAYED
Mania Incidence:
<1.0%*
Severity: MODERATE
Onset: EARLY
Hot Flashes Incidence:
<1.0%*
Severity: MODERATE
Onset: EARLY
Hair Loss Incidence:
<1.0%*
Severity: MILD
Onset: DELAYED
No White Blood Cells Incidence:
<1.0%*
Severity: SEVERE
Onset: DELAYED
Anemia Incidence:
<1.0%*
Severity: MODERATE
Onset: DELAYED
Balance Problems Incidence:
<1.0%*
Severity: MILD
Onset: EARLY
Low Platelet Count Incidence:
<1.0%*
Severity: MODERATE
Onset: DELAYED
Ringing In Ears Incidence:
<1.0%*
Severity: MILD
Onset: DELAYED
Convulsions Incidence:
0.3%*
Severity: SEVERE
Onset: DELAYED
Stomach Pain Incidence:
>1.0%*
Severity: MILD
Onset: EARLY
Upset Stomach Incidence:
>1.0%*
Severity: MILD
Onset: EARLY
Heart Block Incidence:
>1.0%*
Severity: SEVERE
Onset: EARLY
Slow Heart Beat Incidence:
>2.0%*
Severity: SEVERE
Onset: RAPID
Rapid Heart Rate Incidence:
>2.0%*
Severity: MODERATE
Onset: EARLY
Irregular Heart Rate Incidence:
>2.0%*
Severity: SEVERE
Onset: EARLY
Decreased Appetite Incidence:
2.0%*
Severity: MILD
Onset: DELAYED
Depression Incidence:
>2.0%*
Severity: MODERATE
Onset: DELAYED
Chest Pain Incidence:
>2.0%*
Severity: MODERATE
Onset: EARLY
Loose Stools Incidence:
>2.0%*
Severity: MILD
Onset: EARLY
Drowsiness Incidence:
>2.0%*
Severity: MILD
Onset: EARLY
Bundle-branch Block Incidence:
>2.0%*
Severity: MODERATE
Onset: EARLY
Blood In The Urine Incidence:
>2.0%*
Severity: MODERATE
Onset: DELAYED
Dry Mouth Incidence:
>2.0%*
Severity: MILD
Onset: EARLY
Gas Incidence:
>2.0%*
Severity: MILD
Onset: EARLY
Heart Failure Incidence:
>2.0%*
Severity: SEVERE
Onset: DELAYED
Low Blood Pressure Incidence:
>2.0%*
Severity: MODERATE
Onset: RAPID
Shaking Incidence:
>2.0%*
Severity: MILD
Onset: EARLY
Incoordination Incidence:
2.0%*
Severity: MODERATE
Onset: DELAYED
Weakness Incidence:
3.0%*
Severity: MILD
Onset: EARLY
Blurred Vision Incidence:
3.0%*
Severity: MODERATE
Onset: EARLY
Chest Pain Incidence:
>5.0%*
Severity: MODERATE
Onset: EARLY
Flu Incidence:
>5.0%*
Severity: MILD
Onset: DELAYED
Nervousness Incidence:
>5.0%*
Severity: MILD
Onset: DELAYED
Infection Incidence:
>5.0%*
Severity: MILD
Onset: DELAYED
Shortness Of Breath Incidence:
>5.0%*
Severity: MODERATE
Onset: EARLY
Swelling Incidence:
>5.0%*
Severity: MODERATE
Onset: DELAYED
Headache Incidence:
6.0%*
Severity: MILD
Onset: EARLY
Tired Incidence:
6.0%*
Severity: MILD
Onset: EARLY
Constipation Incidence:
8.0%*
Severity: MODERATE
Onset: DELAYED
Lightheadedness Incidence:
9.0%*
Severity: MILD
Onset: EARLY
Vomiting Incidence:
11.0%*
Severity: MILD
Onset: EARLY
Upset Stomach Incidence:
11.0%*
Severity: MILD
Onset: EARLY
Metallic Taste Incidence:
14.0%*
Severity: MILD
Onset: EARLY
*This is an approximate aggregated range of reported side effects from clinical studies performed on this drug. Your experience with this drug may be different.
Daily Life Interactions for Rythmol SR 225mg Sustained-Release Capsule

Elements of your daily lifestyle may have an effect on the medications you are taking. Drug interactions can result in unwanted side effects, reduce the effectiveness of your medicine or possibly increase the action of a particular medicine.

Major Lifestyle Interaction
Grapefruit juice and Rythmol SR 225mg Sustained-Release Capsule(Propafenone Hydrochloride)
Grapefruit juice and Propafenone Hydrochloride(Propafenone Hydrochloride)
Side effects from Propafenone may get worse if you take Grapefruit juice. Do not take Propfenone and Grapefruit juice together. Grapefruit juice can raise the level of Propafenone in the blood, which could increase the chance of side effects from Propafenone such as nausea/vomiting, a slow heart rate, or dizziness. Contact your prescriber immediately if you experience fainting or falling spells, palpitations, shortness of breath, or a change in your usual heart beat (fast, slow, or irregular heart beat) while taking Propafenone. Discuss with your health care provider why you should avoid grapefruit juice intake when taking Propafenone.
Pregnancy & Lactation Information
FIRST Trimester

Class C - Animal studies have shown an adverse effect and there are no adequate and well-controlled studies in pregnant women. OR No animal studies have been conducted and there are no adequate and well-controlled studies in pregnant women.

SECOND Trimester

Class C - Animal studies have shown an adverse effect and there are no adequate and well-controlled studies in pregnant women. OR No animal studies have been conducted and there are no adequate and well-controlled studies in pregnant women.

THIRD Trimester

Class C - Animal studies have shown an adverse effect and there are no adequate and well-controlled studies in pregnant women. OR No animal studies have been conducted and there are no adequate and well-controlled studies in pregnant women.

Lactation

Caution - Not enough information is available to rule out harm to infants when this drug is taken by nursing mothers.


Learning More About
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