Can I take Prozac and Wellbutrin together?

Why this happens

Wellbutrin (bupropion) blocks a specific liver enzyme (CYP2D6) that the body uses to break down Prozac (fluoxetine). Because the Prozac isn't being cleared out as quickly, it builds up to higher levels. Additionally, both drugs affect brain chemicals in a way that can make the brain more prone to seizures.

What you should do

You must speak to your doctor before taking these together. If your doctor decides this combination is necessary, they may prescribe a lower dose of one or both medications. Seek immediate medical help if you experience a seizure, extreme confusion, severe muscle stiffness, or a very high fever.

Important precautions

Depression and anxiety disorders

Both medicines can increase suicidal thoughts and the urge to self-harm, particularly when first starting the medicine or changing the dose. This risk is higher in children, teenagers, and young adults. Monitor your mood closely and seek immediate medical help if you experience new or worsening thoughts of hurting yourself.

Seizure risk

Bupropion carries a significant risk of causing seizures (fits). This risk is much higher if you have ever had an eating disorder (bulimia or anorexia), a history of seizures, or if you suddenly stop drinking alcohol or taking sedatives.

Serotonin Syndrome

Taking these medicines together increases the risk of serotonin syndrome, a potentially life-threatening condition. Seek urgent medical care if you experience extreme agitation, hallucinations, fast heartbeat, severe muscle stiffness, or tremors.

Bleeding disorders

Prozac increases your risk of serious bleeding, especially if you are also taking aspirin, NSAIDs (like ibuprofen), or blood thinners (like warfarin). Seek medical advice if you notice unusual bruising or persistent bleeding.

High blood pressure (Hypertension)

Bupropion can significantly increase your blood pressure. Your blood pressure should be monitored regularly while taking this medication.

Food and drink warnings

Alcohol

It is best to avoid or strictly limit alcohol while taking Prozac. Combining alcohol with this medicine can increase drowsiness, dizziness, and impair your coordination. It may also make your depression or anxiety symptoms worse.

It is best to avoid or strictly limit alcohol while taking bupropion. Combining the two can increase the risk of seizures. Additionally, if you drink alcohol heavily and suddenly stop while taking bupropion, your risk of seizures increases significantly. Consult your doctor before making changes to your drinking habits.

Caffeine (Coffee, Tea, Energy Drinks)

Prozac and Wellbutrin can sometimes increase the effects of caffeine in your body. This may lead to feeling jittery, anxious, or having difficulty sleeping. If you notice these effects, you should reduce your caffeine intake.

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.

Disclaimer

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.