What happens if I miss a dose (Rythmol, Rythmol SR)?
Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.
What happens if I overdose (Rythmol, Rythmol SR)?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
Overdose symptoms may include extreme drowsiness, slow heart rate, feeling like you might pass out, or seizure (convulsions).
What should I avoid while taking propafenone (Rythmol, Rythmol SR)?
Grapefruit and grapefruit juice may interact with propafenone and lead to potentially dangerous effects. Discuss the use of grapefruit products with your doctor.
What other drugs will affect propafenone (Rythmol, Rythmol SR)?
Many drugs can interact with propafenone. Below is just a partial list. Tell your doctor if you are using:
- cimetidine (Tagamet),
- digoxin (digitalis, Lanoxin);
- ketoconazole (Nizoral);
- orlistat (alli, Xenical);
- quinidine (Quin-G);
- rifampin (Rifadin, Rifamate, Rimactane);
- a blood thinner such as warfarin (Coumadin, Jantoven);
- an antidepressant such as desipramine (Norpramin), fluoxetine (Prozac), imipramine (Tofranil), paroxetine (Paxil), sertraline (Zoloft), or venlafaxine (Effexor);
- HIV or AIDS medication such as ritonavir (Norvir, Kaletra) or saquinavir (Invirase);
- another heart rhythm medication such as amiodarone (Cordarone, Pacerone);
- medicine to treat psychiatric disorders, such as haloperidol (Haldol); or
- a beta-blocker such as atenolol (Tenormin, Tenoretic), carvedilol (Coreg), labetalol (Normodyne, Trandate), metoprolol (Dutoprol, Lopressor, Toprol), nadolol (Corgard), propranolol (Inderal, InnoPran), sotalol (Betapace), and others.
This list is not complete and other drugs may interact with propafenone. Tell your doctor about all medications you use. This includes prescription, over-the-counter, vitamin, and herbal products. Do not start a new medication without telling your doctor.
Where can I get more information?
Your pharmacist can provide more information about propafenone.
Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
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