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Puis-je prendre Venlafaxine et Wellbutrin ensemble ?

Guide d'interaction médicamenteuse

Taking venlafaxine and bupropion (Wellbutrin) together can increase the risk of having a seizure. It may also lead to a rare but serious condition called serotonin syndrome, which can cause symptoms like shivering, sweating, confusion, and a fast heartbeat. Additionally, bupropion can cause venlafaxine levels to build up in your body, potentially increasing side effects like dizziness, dry mouth, or nausea.

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Pourquoi cela se produit

Bupropion can lower the 'seizure threshold', making seizures more likely, especially when combined with other antidepressants like venlafaxine. Furthermore, bupropion blocks a specific liver enzyme (CYP2D6) that your body uses to break down venlafaxine. This causes venlafaxine levels to rise. Both drugs also affect brain chemicals, which can occasionally lead to too much serotonin (serotonin syndrome).

You should only take these two medications together if they have been specifically prescribed by a specialist who is monitoring you closely. If you have a history of seizures, head injury, or eating disorders, make sure your doctor knows. Seek immediate medical help if you experience a seizure, extreme agitation, hallucinations, or a very high fever.

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Dépressions et troubles anxieux

Both medicines can cause an increase in suicidal thoughts or self-harm, particularly when first starting treatment or changing doses. Monitor your mood closely and seek urgent medical help if you notice any distressing changes.

Seizure risk (Epilepsy)

Both medicines can lower the seizure threshold. Wellbutrin carries a significant risk of causing fits (seizures), especially at higher doses or in patients with a history of epilepsy or eating disorders.

Troubles de la coagulation

Venlafaxine can increase your risk of bleeding, especially if you are also taking aspirin, NSAIDs (like ibuprofen), or blood-thinning medicines like warfarin. Seek medical advice if you notice unusual bruising or bleeding.

Syndrome sérotoninergique

Combining venlafaxine with other medicines that affect serotonin (such as St John's Wort or certain painkillers) can cause a life-threatening condition called serotonin syndrome. Symptoms include agitation, hallucinations, fast heartbeat, and muscle stiffness.

Alcohol or sedative withdrawal

Suddenly stopping alcohol, benzodiazepines, or anti-seizure medication while taking Wellbutrin can trigger severe seizures. Consult your doctor before making changes to your alcohol consumption.

Alcool

It is best to avoid or strictly limit alcohol when taking these medicines. Combining alcohol with venlafaxine or Wellbutrin can increase the risk of side effects like drowsiness, dizziness, and impaired coordination. More importantly, alcohol can increase the risk of seizures when taking Wellbutrin, and both medications can increase the risk of liver damage if combined with heavy drinking.

Caféine

You should limit your intake of caffeine while taking Wellbutrin. Both caffeine and Wellbutrin can stimulate the central nervous system; combining them may increase the risk of side effects such as anxiety, tremors, palpitations, and insomnia. In rare cases, high levels of caffeine may increase the risk of seizures when taking this medication.

Venlafaxine can sometimes increase your blood pressure or heart rate. Consuming high amounts of caffeine (found in coffee, tea, and energy drinks) may worsen these effects or increase feelings of anxiety and restlessness.

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Taking multiple medicines? Our Vérificateur d'Interactions Médicamenteuses 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.

Avertissement

Ces informations sont fournies à des fins éducatives générales uniquement et ne doivent pas être considérées comme un substitut aux conseils médicaux professionnels. Consultez toujours votre médecin généraliste, votre pharmacien ou un autre professionnel de santé qualifié avant de prendre des décisions concernant vos médicaments. Les circonstances individuelles peuvent varier, et seul un professionnel de santé connaissant votre historique médical peut fournir des conseils personnalisés.

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Historique de l'article

Les informations sur cette page sont rédigées et examinées par des cliniciens qualifiés.

  • 25 janv. 2026 | Publié à l'origine
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