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Kan jag ta Flecainide och Wegovy tillsammans?

Guide för läkemedelsinteraktioner

Wegovy (semaglutid) kan sakta ner hur snabbt din mage töms. Detta kan förändra hur din kropp absorberar flekainid, vilket är ett läkemedel som måste hållas på mycket specifika nivåer i ditt blod för att fungera säkert och effektivt. Dessutom kan båda medicinerna ibland påverka din hjärtrytm eller hjärtfrekvens.

You should speak to your doctor before taking these two medicines together. Wegovy slows stomach emptying, which can affect how quickly Flecainide is absorbed.

Varför detta händer

Wegovy is a GLP-1 receptor agonist that delays gastric emptying (the time it takes for food and pills to leave the stomach). This can delay or alter the absorption of oral medications like flecainide.

Furthermore, Wegovy can sometimes increase resting heart rate, which may interact with the heart rhythm effects of flecainide.

Vad du bör göra

  • Speak to your doctor before taking Flecainide and Wegovy together.

  • Your doctor may recommend more frequent ECGs (heart traces) or blood tests when starting or changing your Wegovy dose.

  • Contact your doctor immediately if you:

    • Feel dizzy.

    • Faint.

    • Notice any change in your heartbeat.

Viktiga försiktighetsåtgärder

Heart failure or previous heart attack

Flecainide must not be used if you have heart failure or have previously suffered a heart attack, as it can increase the risk of life-threatening heart rhythm problems.

Permanent atrial fibrillation

Flecainide should not be used if you have long-standing (permanent) förmaksflimmer that has not been corrected, as it can paradoxically cause the heart rate to become dangerously fast.

Mental health changes - Wegovy

You must monitor your mood and tell your doctor immediately if you experience any sudden changes in mental health, including thoughts of suicide eller själsligt skadar sig.

Pankreatit

Stop using Wegovy and seek immediate medical help if you experience severe and persistent stomach pain, which may reach through to your back, as this can be a sign of acute pancreatitis.

Gallbladder problems

Wegovy can cause gallstones or gallbladder inflammation. Report any sudden, severe pain in your upper right abdomen, yellowing of the skin or eyes (jaundice), or fever to your doctor.

Dehydration - Wegovy

Side effects of Wegovy including nausea and vomiting can cause uttorkning. Ensure you drink plenty of fluids to avoid kidney problems, especially when starting treatment or increasing your dose.

Varningar för mat och dryck

Alkohol

It is best to avoid or strictly limit alcohol while taking flecainide. Alcohol can interfere with your heart rhythm and may increase the risk of side effects such as dizziness or blurred vision. Combining alcohol with heart medication can also put extra strain on your heart and liver.

It is best to avoid or strictly limit alcohol while taking Wegovy. Both alcohol and Wegovy can lower your blood sugar levels; combining them increases the risk of severe hypoglycaemia (dangerously low blood sugar). Additionally, alcohol can worsen common Wegovy side effects like nausea, vomiting, and dehydration.

Caffeine (coffee, tea, energy drinks, cola)

Caffeine is a stimulant that can increase your heart rate or cause irregular heart rhythms. Since flecainide is used to treat heart rhythm problems (arrhythmias), consuming high amounts of caffeine may counteract the effects of your medicine or make your condition worse. It is best to limit your intake of caffeine.

Dairy products (milk)

In some cases, particularly in children or patients on a milk-based diet, high intake of milk can affect how flecainide is absorbed. However, for most adults, normal amounts of dairy are fine. If you are making a significant change to your dairy intake, discuss this with your doctor.

Low-salt (low-sodium) diets

A sudden change to a very low-salt diet or using salt substitutes can increase the levels of flecainide in your blood, which may lead to toxicity. Do not make major changes to your salt intake without consulting your doctor.

Large or high-fat meals

Wegovy slows down how quickly your stomach empties. Eating very large meals or foods high in fat can lead to severe nausea, bloating, and discomfort. It is recommended to eat smaller portions and stop eating as soon as you feel full.

Användning av andra läkemedel

Tar du flera mediciner? Vår Interaktionskontroll för läkemedel hjälper dig att kontrollera om dina receptbelagda läkemedel, receptfria läkemedel och kosttillskott är säkra att ta tillsammans. Sök enkelt efter dina läkemedel för att se potentiella interaktioner och vad du kan göra åt dem.

Ansvarsfriskrivning

Denna information är endast avsedd för allmän utbildning och bör inte användas som en ersättning för professionell medicinsk rådgivning. Rådfråga alltid din läkare, apotekare eller annan kvalificerad vårdpersonal innan du fattar beslut om dina mediciner. Individuella omständigheter kan variera, och endast en vårdpersonal som känner till din medicinska historia kan ge personlig vägledning.

Artikelhistorik

Informationen på denna sida är skriven och granskad av kvalificerade kliniker.
  • 25 jan 2026 | Ursprungligen publicerad

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Ansvarsfriskrivning: The views expressed in the community do not represent medical advice. For any health concerns, consult your GP or healthcare provider.

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