Keppra rage is a nickname for anger or aggression on Keppra (levetiracetam). In FDA label trials, 13% of adults and 38% of children ages 4 to 16 had behavior symptoms, versus 6% and 19% on placebo. Never stop Keppra on your own. Call your neurologist.
This article is for general information only and does not replace medical advice. Consult your doctor or pharmacist for advice specific to your medications.
Safety first. The Keppra Medication Guide says to call a healthcare provider right away for new or worse irritability, "acting aggressive, being angry, or violent," acting on dangerous impulses, or thoughts of suicide. If someone is in danger right now, call 911. In the U.S., you can also call or text the 988 Suicide & Crisis Lifeline at 988. In Canada, 988 is the suicide crisis helpline.
Is Keppra Rage Real? What the FDA Label Says
Yes, the warning is real. Section 5.1 of the Keppra label says the drug "may cause behavioral abnormalities and psychotic symptoms" and that people on it "should be monitored for psychiatric signs and symptoms." The behavior list includes aggression, anger, hostility, and irritability.
The phrase "Keppra rage" is not a medical term. In medical papers it is called "behavioral adverse effects." A 2015 case report uses "levetiracetam-induced rage" for the extreme end: seething rage, fits of fury, and violence. The authors call it rare and say it happens more in people with earlier mood or psychotic problems.
How Common Is Keppra Rage? Adults vs Children by the Numbers
| Who and what was counted | On Keppra | On placebo |
|---|---|---|
| Adults: any behavior symptom (aggression, anger, anxiety, irritability and more) | 13% | 6% |
| Ages 4 to 16: any behavior symptom | 38% | 19% |
| Ages 4 to 16: aggression alone | 10% | 5% |
| Ages 4 to 16: irritability alone | 7% | 1% |
| Ages 1 month to under 4: irritability | 12% | 0% |
| Adults: psychotic symptoms | 1% | 0.2% |
Source: sections 5.1 and 6.1 of the Keppra prescribing information (tablets and oral solution). We did not check the Keppra XR label, so these numbers are for regular Keppra.
Read these numbers with care. The 13% and 38% rows count many kinds of behavior symptoms, including anxiety, apathy, and depression. They are not the share of people with "rage." The adult and child rows also come from different trials, so the gap between them is not a head-to-head comparison. A 2026 review in Frontiers in Neurology pulled the pieces apart. Citing an earlier systematic review of real-world studies, it reported average rates of 9.9% for irritability, 2.5% for anger, and 2.6% for aggressiveness.
Stopping because of it was less common. In the label's trials, 1.7% of adults on Keppra stopped treatment for behavior reactions, versus 0.2% on placebo. The same review lists things linked with a higher risk: a past psychiatric illness, male sex, being under 60, and poorly controlled epilepsy.
What Does Keppra Rage Look Like, and When Does It Start?
The Medication Guide names the warning signs: new or worse irritability, agitation, acting aggressive, being angry or violent, and acting on dangerous impulses.
Timing often points to the start of treatment or a dose change. The two adults in the label's trials who were hospitalized for psychosis had symptoms that began within the first week. In one case report, a teenager developed sudden, severe aggression after dose increases. That is a pattern, not a rule, so a change that starts later is still worth a call.
How Long Does Keppra Rage Last? Does It Go Away?
We could not find a source that gives a typical length, so we will not make one up. Here is what the sources do show:
- In the label's trials, the two adults with psychosis recovered within 1 to 2 weeks after treatment was stopped. Both had been hospitalized for it.
- In the teen case report, symptoms "resolved rapidly" once the dose went back to the earlier level. A doctor made that change too.
Both are small. They show these changes can reverse, and both happened under medical care. Call your neurologist right away about new or worse anger, and again if it keeps going.
Keppra Rage in Children, Toddlers, and Babies
In the label's pediatric trials, rates ran higher than in its adult trials, though the trials differ. In trials of children from 1 month to under 4 years old, irritability was reported in 12% on Keppra versus 0% on placebo. In a 3-month study of 98 children ages 4 to 16, an exploratory analysis of a standard behavior checklist showed a worsening in aggressive behavior on average.
Young children may not be able to say "I feel angry." Tell the doctor about changes you can see, such as more tantrums, hitting, or a child who seems different from last month.
What if your child has autism or ADHD? The sources we read do not test that directly. A 2022 review of seizure medicines in severe childhood epilepsies, which often come with autism and ADHD, says people with a history of behavior or psychiatric conditions may be more at risk of these side effects. So tell the neurologist what your child's behavior was like before Keppra. That makes a change much easier to spot.
If you track a child's medicines in Pillo, Dependents Management is part of the paid plan.
Keppra Rage in Dogs
Vets use levetiracetam for dogs with seizures too. A 2024 veterinary review calls it well tolerated, with serious side effects rarely reported. Still, owners notice changes. In a 2020 study of 84 epileptic dogs based on owner questionnaires, 10 of 40 dogs with no earlier behavior problems were reported to develop them on levetiracetam. Anxiety was most common, and 3 of the 10 were aggressive. The study looked back at past cases, so it cannot prove the drug caused them.
If your dog acts differently on this medicine, talk to your vet. Do not stop it or change anything yourself. See also what to do if you forgot your dog's seizure medicine.
Does Vitamin B6 Help Keppra Rage? What the Trials Show
You will see vitamin B6 (pyridoxine) mentioned in forums. The Keppra label does not mention vitamin B6. So what does the research say?
| Trial | Who | What it found |
|---|---|---|
| Cheraghmakani 2022 | 53 adults | No significant difference between B6 and placebo |
| Mahmoud 2021 | 105 children | Both groups improved; the B6 group improved more. The comparison group got a tiny "homeopathic" dose, not a true placebo |
| Thananowan 2025 | 102 children and teens | Both groups improved; no significant difference at week 8. An adjusted analysis of change over time favored B6 |
The picture is mixed. A 2023 systematic review said the quality of evidence "remains poor" and there is "insufficient evidence to justify any firm recommendation" for B6. In plain terms: B6 may help some people, but the trials do not prove it. Many people got better on placebo too, so getting better on B6 does not by itself show that B6 did it. Ask your neurologist before you add any supplement.
Keppra Rage Treatment: What Can Doctors Do?
There is no single fix. The sources point to a few moves, and each one belongs to your prescriber:
- Adjust the dose. The 2026 review says people with significant behavior effects may need a dose reduction or stopping the drug, depending on how bad it is. Either one is your prescriber's call. In the teen case above, going back to the earlier dose helped.
- Try a different medicine. Brivaracetam (Briviact) is a close cousin of levetiracetam, and some doctors try it. In one retrospective study of 121 young patients who switched, the authors reported that 60% had better tolerability of non-seizure side effects, especially mood and irritability. But 19% had worse side effects and went back to levetiracetam. The Briviact label has its own behavior warning: in its trials, psychiatric reactions were reported in about 13% on the drug versus 8% on placebo. The Keppra label does not name brivaracetam. This is a decision for your neurologist.
- Never stop Keppra by yourself. The Medication Guide is blunt: "Stopping KEPPRA suddenly can cause serious problems," including seizures that will not stop. The label says Keppra "should generally be withdrawn gradually." It adds that if stopping is needed for a serious reaction, faster stopping "can be considered." That is the prescriber's call, made case by case.
If you are scared of what the anger might lead to, call the office right away and say so.
When Is It Not the Keppra?
Anger can have other causes too. Before you or your doctor blames Keppra, it helps to ask what else could be going on:
- A seizure. Some people become aggressive right after one. In a 2026 survey of 201 people with epilepsy, ages 16 and up, 12% reported clinically relevant postictal aggression in the past year, and it was not linked to which seizure medicines or doses they took. If the outbursts come right after a seizure, that is a clue.
- Seizures that are not well controlled. Careful here: the 2026 review lists poorly controlled epilepsy as a risk factor for behavior side effects on Keppra, so it does not rule the drug out.
- A different seizure medicine in your mix. A 2022 review links levetiracetam and perampanel to aggression and irritability, and brivaracetam to a lesser extent.
- Mood, anxiety, or stress. The Medication Guide makes a similar point about suicidal thoughts: they "can be caused by things other than medicines," and your provider may check for other causes.
Timing is a clue, not proof. A change soon after a new dose fits the drug. A change tied to seizures fits something else. Tell your neurologist either way. They have to sort it out, and your notes make that easier.
What to Write Down Before You Call Your Neurologist
Walk in with a short log instead of "he's been angry lately." Write down:
- The date and time of each outburst, and how long it lasted
- What was going on right before it
- The time of your last Keppra dose, and any late or missed doses that week
- Any dose change or new medicine in the past few weeks
- If you had a seizure that day, and how you slept
- Who noticed it, and what they saw
If a dose slips, see what to do about a missed dose of Keppra.
Pillo can help with the record. The persistent alarm keeps going until you respond to it, so your log shows when you marked each dose taken. You can add a note to any dose, log your mood with the mood tracker, and pull up your adherence history before an appointment. Those are on Pillo's free plan, which has ads. If you manage Keppra for a child or a dog, Dependents Management keeps each schedule separate. It is part of the paid plan. Pillo does not diagnose side effects or replace your doctor. Download Pillo on Google Play.
On several medicines? See a routine for taking multiple pills and why not to quit a medicine on your own.
Frequently Asked Questions
What is Keppra rage?
Keppra rage is a nickname for intense irritability, anger, or aggression that can happen on Keppra (levetiracetam). The FDA label lists aggression, anger, hostility, and irritability among its behavior warnings. Most people do not have severe rage, but call your neurologist right away about new or worse anger.
Is Keppra rage more common in children?
The label's pediatric trials reported higher rates than its adult trials, but they are different trials, so the two are not a direct comparison. Behavior symptoms were reported in 38% of children ages 4 to 16 on Keppra (19% on placebo) and 13% of adults (6% on placebo). Irritability was reported in 12% of children from 1 month to under 4 years, versus 0% on placebo. Tell your child's neurologist about any change in behavior.
Can I stop Keppra if I feel rage?
No, not on your own. The Medication Guide warns that stopping suddenly can cause serious problems, including seizures that will not stop. Call your neurologist right away. They will decide whether to change the dose, switch medicines, or stop more slowly.
Does Keppra rage go away?
We found no source that gives a typical length. In the label's trials, two adults with psychosis recovered within 1 to 2 weeks after treatment was stopped, and a teen case report improved after the dose went back down. Both happened under medical care. Call your neurologist right away about new or worse anger, and again if it continues.
Can vitamin B6 stop Keppra rage?
Maybe for some people, but it is not proven. One adult trial found no significant difference from placebo, and two trials in children found both groups improved. A 2023 review called the evidence poor. Ask your neurologist before adding a supplement.
Does brivaracetam (Briviact) cause the same problem?
It can. The Briviact label has its own behavior warning, with psychiatric reactions in about 13% of people on the drug versus 8% on placebo in its trials. Some people tolerate it better after a switch, but 19% in one study had worse side effects. Any switch is your neurologist's decision.
This article is for informational purposes only and does not constitute medical advice. Always consult your doctor or pharmacist before making any changes to your medication routine.
