What should I tell my care team before I take this medication?
They need to know if you have any of these conditions:
- Brugada syndrome
- Have had a heart attack
- Heart failure
- High or low levels of electrolytes, such as magnesium, potassium, or sodium in your blood
- Kidney disease
- Liver disease
- Low blood pressure
- Lung or breathing disease, such as asthma or COPD
- Pacemaker
- Slow heartbeat
- An unusual or allergic reaction to propafenone, other medications, foods, dyes, or preservatives
- Pregnant or trying to get pregnant
- Breastfeeding
What may interact with this medication?
Do not take this medication with any of the following:
- Certain medications for fungal infections, such as fluconazole, ketoconazole, posaconazole
- Certain medications for irregular heartbeat, such as dronedarone
- Cisapride
- Idelalisib
- Nirmatrelvir; ritonavir
- Pimozide
- Saquinavir
- Thioridazine
- Tipranavir
This medication may also interact with the following:
- Beta blockers, such as propranolol
- Digoxin
- Grapefruit juice
- Orlistat
- Warfarin
Other medications may affect the way this medication works. Talk with your care team about all the medications you take. They may suggest changes to your treatment plan to lower the risk of side effects and to make sure your medications work as intended.
This list may not describe all possible interactions. Give your health care provider a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.
What should I watch for while using this medication?
Your condition will be monitored closely when you first begin therapy. Often, this medication is first started in a hospital or other monitored health care setting. Once you are on maintenance therapy, visit your care team for regular checks on your progress. Because your condition and use of this medication carry some risk, it is a good idea to carry an identification card, necklace or bracelet with details of your condition, medications, and care team.
This medication may affect your coordination, reaction time, or judgment. Do not drive or operate machinery until you know how this medication affects you. Sit up or stand slowly to reduce the risk of dizzy or fainting spells. Drinking alcohol with this medication can increase the risk of these side effects.
If you are going to have surgery, tell your care team that you are taking this medication.
What are the most serious risks of this medication?
If you have had a heart attack, talk to your healthcare provider before taking this medicine. Taking this medicine after a heart attack can increase the risk of a dangerous change in heartbeat or heart rhythm that may lead to death. This medicine is usually only used to treat irregular heartbeats (arrhythmia) that are life-threatening.