flecainide
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Manufactured by various FDA-approved generic manufacturers.
*You can pay as little as $0 per fill using Drug Coupons or Patient Assistance Programs. Subject to applicability & eligibility requirements.
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flecainide Uses, Side Effects, Interactions, Warnings & Dosing
What dosages is flecainide available in?
flecainide is available as 50 mg, 100 mg, and 150 mg oral tablet.
What is flecainide used for?
flecainide is an antiarrhythmic that is used for the:
Prevention of paroxysmal supraventricular tachycardias (PSVT)
Prevention of paroxysmal atrial fibrillation/flutter (PAF)
Prevention of ventricular arrhythmias
How does flecainide work?
flecainide is an antiarrhythmic. It works by blocking sodium channels, which play a major part in your heart’s electrical activity. When your heart is firing too quickly in an abnormal rhythm (arrhythmia), flecainide slows down the electricity to help your rhythm return to normal.
How do I take flecainide?
The typical adult starting dose is 50 mg to 100 mg by mouth twice a day, and the maximum recommended daily dose is 300 mg to 400 mg per day depending on the reason for use.
Children have specialized dosing based on height and weight. Your child’s heart specialist will decide the appropriate dose.
Is it safe for me to take flecainide?
flecainide is a safe and effective treatment when used for FDA licensed indications. However, like all medications, they may give you unwanted side effects. You should always discuss potential side effects with your physician to ensure the medication is suitable and right for you. You should not use this medication if you have pre-existing second- or third-degree AV block, or with right bundle branch block when associated with a left hemiblock (bifascicular block), unless a pacemaker is present to sustain the cardiac rhythm should complete heart block occur. flecainide is also contraindicated in the presence of cardiogenic shock or known hypersensitivity to the drug.
flecainide Common Side Effects
Common side effects of flecainide:
- Dizziness
- Changes in vision, such as blurriness or trouble focusing
- Shortness of breath
- Headache
- Nausea
- Tiredness
- Palpitations (feeling that your heart is racing)
- Chest pain
- Weakness or lack of energy
- Tremor
- Constipation
- Swelling due to fluid buildup
- Abdominal pain
flecainide Serious Side Effects
Serious side effects are rare with flecainide. Contact your healthcare provider immediately if you experience any of the following.
- New or worsened irregular heart rhythm, which can be too fast or too slow. Common symptoms include sudden chest pain or discomfort, palpitations or irregular pulse, dizziness or weakness, or unexplained fainting.
Worsened heart failure symptoms
Effects of other drugs, drug classes and over-the-counter products on flecainide
The following medications may interact with flecainide:
- When amiodarone is added to flecainide therapy, plasma flecainide levels may increase two-fold or more in some patients, if flecainide dosage is not reduced
- Drugs that inhibit cytochrome P450IID6, such as quinidine, might increase the plasma concentrations of flecainide in patients that are on chronic flecainide therapy; especially if these patients are extensive metabolizers
Who makes flecainide?
Various FDA-approved generic manufacturers
Is flecainide safe in pregnancy?
There are no adequate and well-controlled studies of flecainide in pregnant women. It is unknown whether flecainide can cause fetal harm when administered to a pregnant woman. flecainide should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.
What to do if you missed your flecainide dose
The FDA's medical product safety reporting program for health professionals, patients and consumers.
Learn more about reporting side effectsDrug Savings Tips
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Are the NowPatient drug savings programs suitable for brand and generic versions of flecainide?
If you have Medicare Part D or Medicare Advantage and none of the flecainide savings options are applicable or affordable for me, what can you do?
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If I have federal, state or commercial insurance and none of the flecainide prescription saving options are applicable or affordable for me, are there any other support organisations that can help me with my co-insurance or copay contributions?
Medical Disclaimer
NowPatient has taken all reasonable steps to ensure that all material is factually accurate, complete, and current. However, the knowledge and experience of a qualified healthcare professional should always be sought after instead of using the information on this page. Before taking any drug, you should always speak to your doctor or another qualified healthcare provider.
The information provided here about medications is subject to change and is not meant to include all uses, precautions, warnings, directions, drug interactions, allergic reactions, or negative effects. The absence of warnings or other information for a particular medication does not imply that the medication or medication combination is appropriate for all patients or for all possible purposes.
Things to know
Why is flecainide high risk?
What are the pros and cons of flecainide?
When should you avoid flecainide?
Why would a doctor prescribe flecainide?
Why do athletes use flecainide?
Why do you need beta blocker with flecainide?
What is the safest drug for AFIB?
Does flecainide raise blood pressure?
Why do I have to take metoprolol with flecainide?
What is the first drug of choice for atrial fibrillation?
Is flecainide hard on the kidneys?
What are the toxic effects of flecainide?
How long does it take for flecainide to stop atrial fibrillation?
What exactly does flecainide do?
How does flecainide make you feel?
Does flecainide affect sleep?
How does flecainide affect the eyes?
Does flecainide work immediately?
What to avoid when taking flecainide?
Can I drink coffee with flecainide?
What is the best time to take flecainide?
Which is better flecainide or metoprolol?
How long can you stay on flecainide?
What should I monitor when taking flecainide?
Is flecainide a good drug for AFIB?
Which is better metoprolol or flecainide?
Is flecainide a high risk drug?
When should you not use flecainide?
What are the long term effects of taking flecainide?
Why do you need a beta blocker with flecainide?
Does flecainide lower blood pressure?
What does flecainide do to EKG?
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