Flecainide oral tablet dosage: A detailed guide

This article describes flecainide oral tablet’s dosages and strengths and gives details on how to take it. You can also find information on savings and coupon options for flecainide. If you want to know more about flecainide oral tablet, see this overview article. It covers details about the drug’s uses and side effects, ways to save on cost, and more.

Flecainide oral tablet is a generic medication. It’s not available in a brand-name version.

Boxed warnings

This drug has boxed warnings about the risk of death or nonfatal heart attack and new or worsened irregular heart rhythm in certain adults. A boxed warning is the most serious warning from the Food and Drug Administration (FDA).

See the end of this article for more information about these warnings.

Form and strengths of flecainide

Flecainide oral tablet comes as follows:

• Form: oral tablet that you swallow
• Strengths: 50 milligrams (mg), 100 mg, 150 mg

Dosage of flecainide

This article describes the recommended dosages for flecainide oral tablet. The drugmaker provides these dosages.

If your doctor prescribes this medication, you should follow the dosage they prescribe. Your doctor will determine the dosage that best meets your needs. Do not change your dosage of flecainide oral tablet without your doctor’s recommendation.

Usual recommended dosages of flecainide in adults

Flecainide is prescribed to help prevent certain types of irregular heart rhythm. These include:

• paroxysmal supraventricular tachycardia
• paroxysmal atrial fibrillation
• sustained ventricular tachycardia

Usually, doctors start by prescribing a low dosage of flecainide oral tablet. Then, they’ll adjust it over time until the right dosage is reached. Ultimately, your doctor will prescribe the smallest dosage of flecainide oral tablet that gives the desired outcome.

The following table shows the recommended starting and maximum dosages of flecainide oral tablet. Doses are expressed in milligrams (mg).

* When prescribed for sustained ventricular tachycardia, flecainide treatment should be started in a hospital.

Dosage adjustments for flecainide

Your doctor will prescribe a dosage of flecainide oral tablet based on several factors. These include:

• the specific condition being treated and how severe it is
• your age
• other health conditions you may have
• other medications you take
• how well your kidneys function
• how you respond to the starting dose

Missed dose of flecainide

Talk with your doctor or pharmacist right away if you realize you forgot to take a dose of flecainide oral tablet. They may advise you to take the missed dose. Or they may advise you to skip it and take your next dose as scheduled.

For tips on how to plan your doses of flecainide oral tablet and avoid missing a dose, read this article. You could also try:

• downloading a reminder app on your phone
• setting an alarm
• putting a note where you’ll see it, such as on your calendar, bathroom mirror, or bedside table

Frequently asked questions

Below are answers to commonly asked questions about flecainide oral tablet and its dosage.

What is the lowest recommended dose of flecainide?

The lowest dosage of flecainide recommended is 50 milligrams (mg) every 12 hours. This is the recommended starting dosage for paroxysmal supraventricular tachycardia and paroxysmal atrial fibrillation. The recommended starting dosage for sustained ventricular tachycardia is 100 mg every 12 hours.

Your doctor will determine the best dosage for your condition. Talk with them if you have questions about your dosage.

Is flecainide taken long term?

Yes, doctors typically prescribe flecainide oral tablet as a long-term treatment. If you and your doctor determine that it’s safe and effective for your condition, you’ll likely take it long term.

If you have questions about how long you should take flecainide oral tablet, talk with your doctor.

How flecainide is taken

You’ll swallow flecainide oral tablet twice per day. You can take it with or without food.

Your doctor may advise that you take this medication around the same time each day. This helps keep a consistent amount of the drug in your body. And that can help the drug work more effectively.

Do not crush or cut flecainide oral tablets. If it’s hard for you to swallow tablets, view this article. It provides suggestions on how to swallow medications that come in pill form.

Also, be sure to talk with your doctor or pharmacist if you’re having difficulty taking your medication. They can offer recommendations about taking it.

Flecainide coupon

Visit this page to access Optum Perks coupons and get price estimates for flecainide when you use the coupons. These coupons can provide significant savings on your prescription costs.

Note: Optum Perks coupons cannot be used with insurance copays or benefits.

Download the free Optum Perks Discount Card to save up to 80% on some prescription medications.

Overdose of flecainide

It’s important that you do not take more flecainide oral tablet than your doctor prescribes. Doing so can lead to harmful effects.

Symptoms of flecainide overdose

Symptoms of an overdose can include:

• low blood pressure
• slow heart rate
• fainting

What to do if you take too much flecainide

If you think you’ve taken too much flecainide, call your doctor or pharmacist right away. Or you could call 800-222-1222 to speak with someone at America’s Poison Centers. You can also use its online resource. If you have severe symptoms, call 911 or a local emergency number immediately. You can also go to the closest emergency room.

What to ask your doctor

This article describes the usual recommended dosages for flecainide oral tablet. If your doctor prescribes this medication, they’ll determine the dosage that’s best for you.

Do not change your dosage of flecainide oral tablet without your doctor’s recommendation. You should take flecainide oral tablet exactly as your doctor prescribes it. Let your doctor know if you have concerns or questions about your treatment plan.

Here’s a list of some possible questions you may want to ask your doctor:

• Will a higher dosage of flecainide oral tablet increase my risk of side effects?
• How often will you change my dosage of flecainide?
• How does the dosage of flecainide compare with that of other medications prescribed for my condition?

Boxed warnings for flecainide

Flecainide has boxed warnings about the risk of death or nonfatal heart attack and new or worsened irregular heart rhythm in certain people. A boxed warning is the most serious warning from the Food and Drug Administration (FDA).

Risk of death or nonfatal heart attack. Flecainide can increase your risk of death or nonfatal heart attack, especially if you’ve had a heart attack in the past 2 years. Due to this risk, doctors typically only prescribe flecainide if your condition is life threatening.

If you experience any symptoms of a heart attack, such as chest pain, chest tightness, shortness of breath, or lightheadedness, call 911 or a local emergency number right away.

Risk of new or worsened irregular heart rhythms in certain people. Flecainide can cause new or worsened irregular heart rhythms if you have atrial fibrillation or atrial flutter. Due to this risk, doctors typically only prescribe flecainide if the benefits of treatment clearly outweigh the risks. They likely won’t prescribe flecainide if you have chronic (long-term) atrial fibrillation.

To learn more about the boxed warnings of flecainide, talk with your doctor.

Disclaimer: Optum Perks has made every effort to make certain that all information is factually correct, comprehensive, and up to date. However, this article should not be used as a substitute for the knowledge and expertise of a licensed healthcare professional. You should always consult your doctor or another healthcare professional before taking any medication. The drug information contained herein is subject to change and is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. The absence of warnings or other information for a given drug does not indicate that the drug or drug combination is safe, effective, or appropriate for all patients or all specific uses.

Article resources

• Flecainide acetate- flecainide acetate tablet. (2023). https://nctr-crs.fda.gov/fdalabel/services/spl/set-ids/a604aee4-30d5-4007-9882-98137d0d867f/spl-doc
• Food and Drug Administration. (2023). Orange Book: Approved drug products with therapeutic equivalence evaluations. https://www.accessdata.fda.gov/scripts/cder/ob/index.cfm