דלג לתוכן הראשי

Flecainide for irregular heartbeats

Flecainide is used to treat irregular heartbeats.

The treatment will usually be started for you in hospital by a heart specialist.

It may make you feel dizzy at first. Other side-effects include blurred vision and a lack of energy.

At a glance

  • Flecainide is a medicine used to treat irregular heart rhythms.

  • It works by helping to correct irregular heartbeats to a normal rhythm and slowing an overactive heart.

  • Take flecainide tablets twice a day, around the same times, before or after food.

  • Tell your doctor if you have other heart problems, or kidney or liver issues.

  • Do not drive or use machines if you experience blurred vision or dizziness.

  • Contact your doctor if you have breathing difficulties, chest pain, feel hot, or feel faint.

המשך לקרוא למטה

About flecainide

סוג התרופה

תרופה נגד הפרעות קצב

שימוש עבור

קצב לב לא סדיר

זמין כ

טבליות והזרקה

Flecainide is used to treat הפרעות קצב. An arrhythmia is an irregularity in your heartbeat, which causes your heart to skip a beat, beat unevenly or beat very fast or very slowly.

Flecainide works by correcting irregular heartbeats to a normal rhythm and by slowing an overactive heart. It will be prescribed for you by a heart specialist doctor. There are two strengths of tablet available (50 mg and 100 mg).

Some medicines are not suitable for people with certain conditions, and sometimes a medicine may only be used if extra care is taken. For these reasons, before you start taking flecainide it is important that your doctor knows:

  • If you have a pacemaker fitted or if you have any heart problems other than your abnormal heart rhythm. In particular, let your doctor know if you have heart failure, or if you have had a heart attack.

  • If you have any problems with the way your liver works, or any problems with the way your kidneys work.

  • אם את בהריון או מניקה.

  • אם אתה נוטל או משתמש בתרופות אחרות כלשהן. זה כולל כל תרופה שאתה נוטל שניתן לרכוש ללא מרשם, כמו גם תרופות צמחיות ומשלימות.

  • אם אי פעם הייתה לך תגובה אלרגית לתרופה.

המשך לקרוא למטה

  • Before you start the treatment, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about flecainide and will provide you with a full list of the side-effects which you may experience from taking it.

  • Your doctor will tell you what the right dose of flecainide is for you. The dose may need to be adjusted as your symptoms become controlled, so make sure you take flecainide exactly as your doctor tells you to. Flecainide tablets are usually taken twice each day. Your dose will be printed on the label of the pack to remind you about what the doctor said to you.

  • נסה לקחת את המנות שלך בערך באותם זמנים ביום, שכן זה יעזור לך לזכור לקחת אותן באופן קבוע.

  • You can take flecainide tablets either before or after food.

  • If you forget to take a dose, leave out the missed dose but make sure that you remember to take your next dose when it is due. Do not take two doses together to make up for a forgotten dose.

  • נסה לשמור על הפגישות הקבועות שלך עם הרופא שלך. זה כדי שהרופא שלך יוכל לבדוק את קצב הלב שלך ולעקוב אחר ההתקדמות שלך.

  • Treatment with flecainide is usually long-term unless you experience an adverse effect. You should continue to take it unless you are advised otherwise by your doctor.

  • If you are having an operation or any medical/dental treatment, remember to tell the person carrying out the treatment that you are taking flecainide. This is because it can interfere with some local anaesthetics and increase the risk of side-effects.

  • If you buy any medicines 'over the counter', always check with a pharmacist that they are suitable for you to take alongside your other medicines. A medicine called cimetidine (which is taken to reduce stomach acid) can interfere with flecainide.

המשך לקרוא למטה

Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. The table below contains some of the most common ones associated with flecainide. You will find a full list in the manufacturer's information leaflet supplied with your medicine. The unwanted effects often improve as your body adjusts to the new medicine, but speak with your doctor or pharmacist if any of the following continue or become troublesome.

Very common flecainide side-effects (these affect more than 1 in 10 people)


מה אני יכול לעשות אם אני חווה את זה?

Blurred or double vision, feeling dizzy

Do not drive and do not use tools or machines

Common flecainide side-effects

(אלה משפיעים על פחות מ-1 מתוך 10 אנשים)

מה אני יכול לעשות אם אני חווה את זה?

Feeling weak or tired, lack of energy, fluid retention (causing swollen hands or feet)

אם יש בעיה, דבר עם הרופא שלך

חשוב: there have been reports of flecainide causing unwanted heartbeat changes in some people. This has caused symptoms such as difficulties with breathing, chest pain, feeling hot and feeling faint. If you experience any of these symptoms, you should contact your doctor for advice straightaway.

If you experience any other symptoms which you think may be due to flecainide, speak with your doctor or pharmacist for further advice.

  • שמור את כל התרופות מחוץ להישג ידם וראייתם של ילדים.

  • יש לאחסן במקום קריר ויבש, הרחק מחום ואור ישיר.

מידע חשוב על כל התרופות

לעולם אל תיקח יותר מהמינון שנקבע. אם אתה חושד שאתה או מישהו אחר אולי לקח מנת יתר של תרופה זו, פנה למחלקת תאונות וחירום בבית החולים המקומי שלך. קח את המיכל איתך, אפילו אם הוא ריק.

תרופה זו מיועדת עבורך. לעולם אל תיתן אותה לאנשים אחרים, גם אם מצבם נראה דומה לשלך.

אל תשמרו תרופות שפג תוקפן או שאינן רצויות. קחו אותן לבית המרקחת המקומי שלכם שיטפל בהן עבורכם.

אם יש לך שאלות לגבי התרופה הזו, שאל את הרוקח שלך.

דווח על תופעות לוואי לתרופה או חיסון

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שאלות נפוצות

What kind of heart conditions does flecainide treat?

Flecainide is specifically prescribed for arrhythmias, which are irregularities in your heartbeat. This includes situations where your heart might skip a beat, beat unevenly, too fast, or too slowly, and it works by helping to restore a normal heart rhythm or slow down an overactive heart.

Why is it important for my doctor to know about my other health conditions before I start flecainide?

It's important for your doctor to know about other health conditions because some medicines aren't suitable for certain conditions, or might need extra care. For flecainide, in particular, your doctor needs to know if you have a pacemaker, other heart problems (like heart failure or a past heart attack), or issues with your liver or kidneys. This helps ensure the medicine is safe and appropriate for you.

Can I take flecainide with other medicines?

You should tell your doctor about all other medicines you are taking, including those bought without a prescription, and herbal or complementary medicines. For example, a medicine called cimetidine, used for stomach acid, can interfere with flecainide. Always check with a pharmacist if buying over-the-counter medicines to ensure they are suitable to take with flecainide.

How often will I need to see my doctor while taking flecainide?

You should try to keep your regular appointments with your doctor while taking flecainide. These appointments are important so your doctor can regularly check your heart rhythm and monitor how you are progressing with the treatment.

What should I do if I forget to take a dose of flecainide?

If you forget a dose of flecainide, you should leave out the missed dose completely. Then, just make sure to take your next dose when it is due. Do not take two doses together to try and make up for the one you missed.

Are there any activities I should avoid if I experience side-effects like blurred vision or dizziness?

If you experience side-effects such as blurred or double vision, or if you feel dizzy, it's important not to drive a car or operate any tools or machinery. These common side-effects can affect your ability to perform these activities safely.

How should I store flecainide tablets at home?

You should keep all flecainide tablets out of the reach and sight of children. Store them in a cool, dry place, away from any direct heat and light, to ensure they remain effective.

קריאה נוספת והפניות

המשך לקרוא למטה

About the authorView full bio

Author image

מייקל סטיוארט, MRPharmS

Medicine Leaflet Review Manager – Contractor, Pharmacist

BPharm (Hons), MRPharmS

Michael is a community pharmacist practicing in the Midlands and South Yorkshire with more than 20 years’ experience advising on medicines and medical conditions. He has a strong background in healthcare training, having produced and delivered training courses for pharmacy teams and staff of residential care settings, including nurses. He has also contributed to pharmacy advisory boards for the management of low acuity conditions in the community.

About the reviewer

Author image

סיד דג'אני

Sultan Dajani qualified at the London School of Pharmacy in 1994 and became the youngest elected member of the Royal Pharmaceutical Society council since its founding in 1842.

היסטוריית המאמר

המידע בעמוד זה נכתב ונבדק על ידי קלינאים מוסמכים.

  • הסקירה הבאה מתוכננת ל: 17 במאי 2027
  • 2 יוני 2024 | הגרסה האחרונה

    עודכן לאחרונה על ידי

    מייקל סטיוארט, MRPharmS

    נבדק על ידי

    סיד דג'אני
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