Can I take Magnesium and Flecainide together?
Drug interaction guide
Originally published 25 Jan 2026
Répond aux besoins du patient lignes directrices éditoriales
- TéléchargerTélécharger
- Partager
- Langue
- Discussion
Taking magnesium supplements alongside flecainide is generally safe, but very high doses of magnesium could potentially interfere with how flecainide works on your heart rhythm. In some cases, magnesium can actually be helpful for heart rhythm issues, but it must be balanced correctly.
Dans cet article :
Poursuivre la lecture ci-dessous
Why this happens
Both magnesium and flecainide affect the electrical signals and mineral channels (like sodium and potassium) in your heart cells. While they don't usually stop each other from being absorbed, having too much or too little magnesium in your blood can change how effective flecainide is at controlling your heart rhythm.
What you should do
You can usually take these together, but do not start high-dose magnesium supplements without checking with your doctor first. Your doctor may want to monitor your blood mineral levels (electrolytes) to ensure flecainide works safely and effectively. If you feel any new heart palpitations, dizziness, or shortness of breath, contact your healthcare provider.
Poursuivre la lecture ci-dessous
Using other medicines
Taking multiple medicines? Our Medicines Interaction Checker helps you check whether your prescriptions, over-the-counter medicines, and supplements are safe to take together. Simply search for your medicines to see potential interactions and what to do about them.
Clause de non-responsabilité
This information is for general educational purposes only and should not be relied upon as a substitute for professional medical advice. Always consult your GP, pharmacist, or another qualified healthcare professional before making decisions about your medications. Individual circumstances may vary, and only a healthcare professional who knows your medical history can provide personalised guidance.
Patient picks for Drug interactions
Traitement et médicaments
Can I take Evana heavy period relief and Mefenamic acid together?
Taking these two medicines together significantly increases your risk of serious stomach problems, such as stomach ulcers, bleeding, or irritation of the stomach lining. It can also put extra strain on your kidneys.
Traitement et médicaments
Can I take Clarithromycin and Rosuvastatin together?
Taking these two medicines together can significantly increase the amount of rosuvastatin in your blood. This increases the risk of serious muscle damage (rhabdomyolysis), which can lead to kidney problems. Symptoms to watch for include unexplained muscle pain, tenderness, or weakness, especially if you also feel generally unwell or have a fever.
Poursuivre la lecture ci-dessous
Historique de l'article
Les informations contenues dans cette page sont rédigées et évaluées par des cliniciens qualifiés.
25 janvier 2026 | Publié à l'origine
Demandez, partagez, connectez-vous.
Parcourez les discussions, posez des questions et partagez vos expériences sur des centaines de sujets liés à la santé.
Vous ne vous sentez pas bien ?
Évaluez gratuitement vos symptômes en ligne
Inscrivez-vous à la newsletter destinée aux patients
Votre dose hebdomadaire de conseils santé clairs et fiables, rédigés pour vous aider à vous sentir informé, confiant et maître de la situation.
En vous abonnant, vous acceptez notre politique de confidentialité. Vous pouvez vous désabonner à tout moment. Nous ne vendons jamais vos données.