Can I take Flecainide and Wegovy together?
Guia de interação medicamentosa
Publicado originalmente 25 Jan 2026
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Wegovy (semaglutide) can slow down how quickly your stomach empties. This might change how your body absorbs flecainide, which is a medicine that needs to be kept at very specific levels in your blood to work safely and effectively. Additionally, both medications can occasionally affect your heart rhythm or heart rate.
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Por que isso acontece
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, semaglutide can sometimes increase resting heart rate, which may interact with the heart rhythm effects of flecainide.
O que você deve fazer
Voltar ao conteúdoYou should speak to your doctor before using these together. Because flecainide has a 'narrow therapeutic index' (meaning the difference between a safe dose and a dangerous dose is small), your doctor may want to monitor your blood levels or perform an ECG (heart trace) more frequently when you start or change your dose of Wegovy. Contact your doctor immediately if you feel dizzy, faint, or notice a change in your heartbeat.
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Precauções importantes
Voltar ao conteúdoHeart 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
This medicine should not be used if you have long-standing (permanent) atrial fibrillation that has not been corrected, as it can paradoxically cause the heart rate to become dangerously fast.
Pancreatite
Stop using Wegovy and seek immediate medical help if you experience severe, persistent stomach pain which may reach through to your back, as this can be a sign of acute pancreatitis.
Desidratação
Nausea and vomiting can cause dehydration. Ensure you drink plenty of fluids to avoid kidney problems, especially when starting treatment or increasing your dose.
Avisos sobre alimentos e bebidas
Voltar ao conteúdoÁlcool
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.
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Usando outros medicamentos
Voltar ao conteúdoTomando vários medicamentos? Nosso Verificador de Interações de Medicamentos ajuda você a verificar se suas prescrições, medicamentos de venda livre e suplementos são seguros para serem tomados juntos. Basta procurar seus medicamentos para ver possíveis interações e o que fazer sobre elas.
Aviso Legal
Esta informação é apenas para fins educacionais gerais e não deve ser considerada como um substituto para aconselhamento médico profissional. Sempre consulte seu médico, farmacêutico ou outro profissional de saúde qualificado antes de tomar decisões sobre seus medicamentos. As circunstâncias individuais podem variar, e somente um profissional de saúde que conheça seu histórico médico pode fornecer orientações personalizadas.
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Histórico do artigo
As informações nesta página são escritas e revisadas por clínicos qualificados.
25 Jan 2026 | Publicado originalmente

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