Wellbutrin (Bupropion) Overdose: Signs, Precautions, & Treatment

A Wellbutrin overdose can happen when someone takes too much bupropion, the active ingredient in this prescription medication, leading to serious health risks. Wellbutrin, also known as bupropion, treats depression and helps people quit smoking, but taking too much can cause severe symptoms like seizures or heart problems.  

 

This article covers Wellbutrin’s risks, Wellbutrin overdose symptoms, what causes an overdose, and how to respond to this medical emergency. 

Boxed Warning: Bupropion (Wellbutrin SR and Wellbutrin XR) – Risk of suicidal thoughts and behaviors in certain people

Wellbutrin has an FDA boxed warning because it may increase the risk of suicidal thoughts and behaviors, especially in children, teens, and young adults [2]. This risk is higher when starting the medication or changing the dose. Watch for changes in mood, behavior, or worsening depression. If you notice agitation, new or worsening depression, or suicidal thoughts, contact a healthcare provider right away.

 

The FDA added this warning after studies showed a small but real risk increase in younger people taking antidepressants like Wellbutrin.

 

Watch for sudden irritability, pulling away from activities, or talk about self-harm. Regular doctor visits can help review and adjust the treatment if needed. These steps help make sure the benefits of Wellbutrin outweigh the risks.

 

 

Can You Overdose on Wellbutrin?

Yes, you can overdose on Wellbutrin if you take too much or misuse it. The maximum daily dose is 450 mg.

 

Taking 600 mg or more, such as with Wellbutrin XL, can cause seizures. Severe poisoning can happen with doses of 5–6 grams, and a deadly overdose is usually above 9 grams [3]. The gap between a safe and dangerous dose is small, so even minor mistakes can be harmful. Mixing Wellbutrin with alcohol, stimulants, or some other medicines increases the risk of overdose.

 

Wellbutrin’s safe dosage range is narrow compared to other medications. Accidentally doubling a dose can easily exceed the safe limit. Taking Wellbutrin with caffeine or other stimulants to boost energy can cause dangerous side effects. Always keep your medicine safely out of reach of children. Be aware of the differences between immediate-release and extended-release forms to prevent dosing errors.

 

When Should You Seek Immediate Help for a Wellbutrin Overdose?
Get help right away if someone has a Wellbutrin overdose and shows symptoms like seizures, passing out, or trouble breathing. Call 911 if these signs appear or if you suspect someone has taken an overdose of Wellbutrin XL. Even if the person seems okay, call poison control for advice. Acting quickly can prevent serious problems like heart issues or long seizures. Waiting too long can exacerbate the situation.

 

Keep in mind that symptoms may not appear immediately, as the extended-release form may take some time to take effect. It’s safer to seek help early, even if you’re unsure.

Symptoms of a Wellbutrin Overdose

Wellbutrin overdose symptoms can affect the body and mind, often requiring urgent medical care. These symptoms are severe and indicate bupropion toxicity. 

 

Common Wellbutrin toxicity symptoms include:

• Seizures: Sudden, repeated seizures can happen without warning and may last a few minutes. These are the most common signs of a Wellbutrin overdose [2].

• Fast heart rate or unstable blood pressure: Your heart may feel like it’s racing or pounding. This can lead to dangerous heart rhythm problems.

• Agitation or confusion: You may feel restless, confused, or experience visual hallucinations. These happen because the brain is overstimulated.

• Nausea or vomiting: An upset stomach is common and can lead to dehydration if left untreated.

• Shaking, blurred vision, or muscle twitches: You might notice your hands shaking, blurry eyesight, or muscle jerks.

• Loss of consciousness: Severe cases may cause fainting or even coma if the nervous system is overwhelmed.

• Other signs: Fever, heavy sweating, or feeling very weak can also be signs of overdose.

What Can Cause a Wellbutrin Overdose?

A Wellbutrin overdose can occur from various factors, including:

• Accidental dosing errors: Taking an extra dose after forgetting one, which can cause the drug to build up in your system [4].

• Intentional misuse: Taking too much on purpose, like in a suicide attempt.

• Drug interactions: Mixing Wellbutrin with alcohol or stimulants increases the risk of seizures.

• Underlying health conditions: Having a seizure disorder or an eating disorder makes overdose more likely, even at normal doses.

• Organ problems: Liver or kidney issues slow down clearing the drug, causing it to build up even with regular doses.

 

For example, taking two doses at once after forgetting one is a common mistake. Using cold medicines with stimulants can also raise Wellbutrin levels without you knowing. People with a history of substance misuse may try higher doses, not realizing how risky it is. Knowing these causes can help prevent overdoses and spot trouble early.

Can a Wellbutrin Overdose Cause Complications?

Yes, a Wellbutrin overdose can cause serious and even life-threatening complications. Multiple seizures can damage the brain by cutting off oxygen and may cause a dangerous condition called status epilepticus.

 

Seizures can also cause muscle damage or lead to a high fever. Irregular or fast heartbeats can lead to a heart attack or stroke. Very low blood pressure (shock) may happen [3]. Vomiting during a seizure can cause food or liquid to get into the lungs (aspiration pneumonia). In severe cases, multiple organs can fail.

 

Seeking medical help promptly can help prevent these problems. For example, rhabdomyolysis releases muscle protein into the blood, which can damage the kidneys unless treated. Aspiration pneumonia occurs when material from the stomach enters the lungs, potentially leading to an infection that requires antibiotics.

 

If the brain is damaged due to a lack of oxygen, long-term effects such as memory or thinking problems can occur.

Wellbutrin Overdose Symptoms Vs. Side Effects

Wellbutrin overdose symptoms are much more serious than regular side effects and can be life-threatening. Normal doses may cause mild issues that often go away on their own. In contrast, an overdose can cause seizures or heart problems, which are dangerous and require immediate help.

 

Here’s the difference:

• Typical side effects include headaches, trouble sleeping, dry mouth, nausea, constipation, or mild shakiness. These usually get better as your body adjusts.

• Overdose symptoms include seizures, extreme restlessness, a fast or irregular heart rate, high blood pressure, or passing out. These require emergency care to prevent lasting harm.

 

The key difference is that Wellbutrin overdose symptoms are intense and dangerous, while regular side effects are usually manageable. Knowing this helps you decide when to get medical help and when to wait. Doctors recommend tracking your symptoms so you notice if they become more serious.

Common Side Effects of Wellbutrin

At standard doses, Wellbutrin may cause:

• Headache or dizziness: You may feel lightheaded or have mild head pain. Drinking water or resting usually helps.

• Trouble sleeping: It may be hard to fall asleep or stay asleep. This often improves with a regular bedtime routine.

• Dry mouth or nausea: You may experience a dry mouth or feel nauseous. Drinking water or eating small meals can help.

• Constipation or tremors: You may experience difficulty with digestion or feel a slight tremor. Changes in diet or exercise can help.

 

These effects are usually mild and go away with time, unlike the severe symptoms of a Wellbutrin overdose. If side effects last, talk to your doctor about changing your dose. Starting with a low dose and slowly increasing it can also help reduce side effects.

Preventing a Wellbutrin Overdose

To prevent a Wellbutrin overdose, use it carefully and as prescribed. Do not exceed the recommended dose, which is typically 450 mg per day. Never crush or snort the tablets, as this can cause a quick and dangerous overdose. Avoid alcohol or medicines that raise seizure risk, like other antidepressants or stimulants. Keep Wellbutrin stored safely and get rid of leftover pills through take-back programs.

 

If you have a seizure disorder or liver problems, be extra careful to avoid Wellbutrin toxicity. Learning about the medicine and having your doctor prescribe it properly can lower your risk. Use a pill organizer to prevent medication errors, and consult your doctor regularly to ensure the correct dose is prescribed for you. Discuss any side effects promptly so your doctor can adjust your treatment accordingly. Always share your complete health history so your prescription can be tailored to your needs.

FAQs

What is the mortality rate for bupropion?

Death from a Wellbutrin overdose is rare, with studies showing a fatality rate of less than 1%. The risk increases with very high doses or complications like prolonged seizures or heart problems. Any suspected bupropion overdose should be treated as a serious emergency. Quick medical response greatly improves outcomes.

What happens if you accidentally take 2 Wellbutrin XL 300?

Taking two Wellbutrin XL 300 mg tablets (600 mg total) can cause a Wellbutrin overdose, potentially leading to seizures or heart issues. This exceeds the maximum daily dose of 450 mg and may trigger symptoms like shakiness, nausea, or confusion. Contact a doctor or poison control center immediately if this happens. Monitoring for delayed symptoms is key.

What does too much Wellbutrin feel like?

Too much Wellbutrin can feel like intense restlessness, shakiness, nausea, or a racing heart. As the Wellbutrin overdose worsens, confusion, hallucinations, or seizures may occur. These effects are far more severe than typical side effects and signal a medical emergency. Seeking help promptly can prevent escalation.

Get Treatment for Drug Addiction at Alliance Recovery

If you or someone you know is struggling with prescription drug misuse, including Wellbutrin overdose risks, Alliance Recovery offers compassionate, evidence-based care. Our experienced team supports individuals facing substance misuse challenges.

 

You will find:

• Personalized treatment plans tailored to your needs.

• Evidence-based treatment programs like cognitive-behavioral therapy.

• Individual and group therapy sessions to address underlying issues.

• Supportive community with peer support and coaching.

• Aftercare planning and career guidance.

 

Take the first step toward recovery. Call (844) 287-8506 to connect with our team and explore treatment options.

Sources

 

[1] https://www.fda.gov/drugs/postmarket-drug-safety-information-patients-and-providers/bupropion-hydrochloride-wellbutrin-xl-information

[2] https://www.acep.org/toxicology/newsroom/mar2019/bupropion-overdose-suicide-attempt-or-recreational-disaster

[3] https://www.emra.org/emresident/article/bupropion-toxicity

[4] https://poisoncontrol.utah.edu/news/2021/05/bupropion-overdose-and-management

[5] https://www.ncbi.nlm.nih.gov/books/NBK542196/