Rythmol Generic Name: Propafenone
Rythmol has not been shown to improve the rate of survival in patients with an abnormal heart rhythm. For this reason, Rythmol should only be used for certain life-threatening abnormal heart rhythms. Talk with your doctor about the risks and benefits of using Rythmol .
Rythmol is used for:
Treating an irregular heartbeat and helping maintain a normal heart rhythm in patients without structural heart disease.
Rythmol is a class 1C antiarrhythmic medicine. It works on different fibers of the heart to stabilize its action and regulate heartbeat.
Do NOT use Rythmol if:
- you are allergic to any ingredient in Rythmol
- you have congestive heart failure, certain shock conditions, certain types of irregular heartbeat (eg, sick sinus node syndrome, atrioventricular block) and you are not using an artificial pacemaker, slow heartbeat, very low blood pressure, abnormal electrolyte levels, or certain breathing problems (eg, chronic bronchitis or emphysema)
- you are taking another antiarrhythmic (eg, amiodarone, quinidine), droperidol, bepridil, cisapride, an HIV protease inhibitor (eg, ritonavir), a ketolide (eg, telithromycin), a macrolide antibiotic (eg, erythromycin), a quinolone antibiotic (eg, ciprofloxacin), a certain type of phenothiazine (eg, thioridazine), a tricyclic antidepressant (eg, imipramine), or ziprasidone
Contact your doctor or health care provider right away if any of these apply to you.
Before using Rythmol :
Some medical conditions may interact with Rythmol . Tell your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you:
- if you are pregnant, planning to become pregnant, or are breast-feeding
- if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement
- if you have allergies to medicines, foods, or other substances
- if you have kidney or liver problems or myasthenia gravis (muscle weakness)
- if you use an artificial pacemaker
Some MEDICINES MAY INTERACT with Rythmol . Tell your health care provider if you are taking any other medicines, especially any of the following:
- Rifampin because the effectiveness of Rythmol may be decreased
- Azole antifungals (eg, ketoconazole), cimetidine, HIV protease inhibitors (eg, ritonavir), selective serotonin reuptake inhibitors (SSRIs) (eg, fluoxetine), serotonin norepinephrine reuptake inhibitors (eg, duloxetine), or venlafaxine because the side effects of Rythmol may be increased
- Antiarrhythmics (eg, amiodarone, quinidine), arsenic, bepridil, cisapride, droperidol, ketolides (eg, telithromycin), macrolide antibiotics (eg, erythromycin), phenothiazines (eg, thioridazine), pimozide, quinolone antibiotics (eg, ciprofloxacin), serotonin receptor antagonist antiemetics (eg, dolasetron), tricyclic antidepressants (eg, imipramine), or ziprasidone because the risk of serious side effects, such as abnormal heart rhythms, may be increased
- Anticoagulants (eg, warfarin), beta-blockers (eg, propranolol), digoxin, haloperidol, or lidocaine because side effects may be increased by Rythmol
This may not be a complete list of all interactions that may occur. Ask your health care provider if Rythmol may interact with other medicines that you take. Check with your health care provider before you start, stop, or change the dose of any medicine.
How to use Rythmol :
Use Rythmol as directed by your doctor. Check the label on the medicine for exact dosing instructions.
- Rythmol may be taken with or without food.
- Take each dose at the same time with respect to meals.
- Take Rythmol regularly to receive the most benefit from it. Do not miss any doses.
- Eating grapefruit or drinking grapefruit juice may affect the amount of Rythmol in your blood. Talk with your doctor before including grapefruit or grapefruit juice in your diet.
- If you miss a dose of Rythmol , take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.
Ask your health care provider any questions you may have about how to use Rythmol .
Important safety information:
- Rythmol may cause drowsiness or dizziness. Do not drive, operate machinery, or do anything else that could be dangerous until you know how you react to Rythmol . Using Rythmol alone, with certain other medicines, or with alcohol may lessen your ability to drive or perform other potentially dangerous tasks.
- Rythmol may affect artificial pacemakers. Pacemakers should be monitored and programmed accordingly during therapy.
- Before you have any medical or dental treatments, emergency care, or surgery, tell the doctor or dentist that you are using Rythmol .
- LAB TESTS, including electrocardiographic tests, white blood cell counts, and electrolyte levels, may be performed to monitor your progress or to check for side effects. Be sure to keep all doctor and lab appointments.
- Use Rythmol with extreme caution in CHILDREN. Safety and effectiveness have not been confirmed.
- PREGNANCY and BREAST-FEEDING: If you become pregnant while taking Rythmol , discuss with your doctor the benefits and risks of using Rythmol during pregnancy. Rythmol is excreted in breast milk. Do not breast-feed while taking Rythmol .
Possible side effects of Rythmol :
All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome:
Change in taste; constipation; dizziness; drowsiness; gas; lightheadedness; tiredness.Seek medical attention right away if any of these SEVERE side effects occur:
Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blurred vision; chest pain; chills; excessive thirst; fast, slow, or irregular heartbeat; fever; loss of appetite; muscle weakness; prolonged diarrhea; shortness of breath; sore throat; sweating; swelling of the hands or feet; tremor; unexplained weakness; unusual bruising or bleeding; vomiting.
This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch.
If OVERDOSE is suspected:
Contact 1-800-222-1222 (the American Association of Poison Control Centers), your local poison control center ( http://www.aapcc.org), or emergency room immediately. Symptoms may include convulsions; decreased sexual ability; drowsiness; fainting; fatigue; irregular heartbeat; metallic taste; seizures; severe dizziness or drowsiness; slow heartbeat; weakness.Proper storage of Rythmol :
Store Rythmol at 77 degrees F (25 degrees C) in a tightly closed container. Brief storage at temperatures between 59 and 86 degrees F (15 and 30 degrees C) is permitted. Store away from heat, moisture, and light. Do not store in the bathroom. Keep Rythmol out of the reach of children and away from pets.
- If you have any questions about Rythmol , please talk with your doctor, pharmacist, or other health care provider.
- Rythmol is to be used only by the patient for whom it is prescribed. Do not share it with other people.
- If your symptoms do not improve or if they become worse, check with your doctor.
This information is a summary only. It does not contain all information about Rythmol . If you have questions about the medicine you are taking or would like more information, check with your doctor, pharmacist, or other health care provider.
- Rythmol Advanced Consumer (Micromedex) - Includes Dosage Information
- Rythmol Detailed Consumer Information (PDR)
- Rythmol Concise Consumer Information (Cerner Multum)
- Rythmol Prescribing Information (FDA)
- Propafenone Professional Patient Advice (Wolters Kluwer)
- Propafenone Prescribing Information (FDA)
- Rythmol SR Prescribing Information (FDA)