BANZEL Side Effects

Parents and caregivers of someone who has seizures associated with Lennox-Gastaut syndrome (LGS) are often concerned with the side effects of seizure medications. Every new side effect means another challenge to overcome.

We encourage you to talk to your healthcare provider about these risks.

Click the READ MORE button for important details on each of these risks.

Tap the READ MORE button for important details on each of these risks.

QT Shortening Patients with a history of Familial Short QT syndrome should not be treated with BANZEL. Talk to your healthcare provider if you are unsure if this affects...

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QT Shortening Patients with a history of Familial Short QT syndrome should not be treated with BANZEL. Talk to your healthcare provider if you are unsure if this affects your loved one. BANZEL has been shown to reduce the QT interval. Caution should be used when administering BANZEL with other drugs that shorten the QT interval.

Suicidal Behavior and Ideation All medications to treat seizures, including BANZEL, may cause suicidal thoughts or actions in a very small number of people, about 1 in...

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Suicidal Behavior and Ideation All medications to treat seizures, including BANZEL, may cause suicidal thoughts or actions in a very small number of people, about 1 in 500. Call your healthcare provider right away if you or your loved one experiences new or worsening symptoms of depression, unusual changes in mood or behavior, thoughts or actions about suicide or self-harm, aggression, agitation, anger, anxiety, or irritability.

Adverse Reactions Use of BANZEL has been associated with side effects such as sleepiness or feeling tired, difficulty with coordination, dizziness, and problems with...

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Adverse Reactions Use of BANZEL has been associated with side effects such as sleepiness or feeling tired, difficulty with coordination, dizziness, and problems with walking or movement. Alcohol, in combination with BANZEL, may increase or worsen these side effects.

You or your loved one should take BANZEL only as prescribed. Do not stop taking BANZEL without first talking to your healthcare provider. Stopping BANZEL suddenly can cause serious problems.

Multi-Organ Hypersensitivity Reactions Call your healthcare provider if your loved one experiences a rash. This can be a sign of a more serious condition, such as...

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Multi-Organ Hypersensitivity Reactions Call your healthcare provider if your loved one experiences a rash. This can be a sign of a more serious condition, such as multiorgan hypersensitivity reaction. For more information, please see the Medication Guide and the Important Safety Information.

Status Epilepticus Status epilepticus is considered a medical emergency in which the patient is in a state of prolonged seizure. Estimates...

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Status Epilepticus Status epilepticus is considered a medical emergency in which the patient is in a state of prolonged seizure. Estimates of the incidence of treatment-emergent status epilepticus among patients treated with BANZEL are difficult because standard definitions were not employed. In a controlled Lennox-Gastaut syndrome (LGS) trial, 3 of 74 (4.1%) BANZEL-treated patients had episodes that could be described as status epilepticus compared with none of the 64 patients in the placebo-treated group. In all controlled trials that included patients with different epilepsies, 11 of 1240 (0.9%) BANZEL-treated patients had episodes that could be described as status epilepticus compared with none of the 635 patients in the placebo-treated group.

Drug Interactions BANZEL can interact with other medications. Tell your healthcare provider about all the medicines taken by your loved one, including prescription...

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Drug Interactions BANZEL can interact with other medications. Tell your healthcare provider about all the medicines taken by your loved one, including prescription and non-prescription medicines, vitamins, and herbal supplements, to discuss possible side effects.

The most common side effects of BANZEL include:

  • Headache
  • Dizziness
  • Tiredness
  • Sleepiness
  • Nausea
  • Vomiting

Tell your healthcare provider about any side effect that bothers you or that does not go away. These are not all of the possible side effects of BANZEL. For more information, ask your healthcare provider or pharmacist.

To report suspected adverse reactions, contact Eisai Inc. at 1-888-274-2378 or the FDA at 1-800-FDA-1088 or www.FDA.gov/medwatch.

For additional information about risks associated with BANZEL, read the Medication Guide and the Important Safety Information below, and discuss it with your healthcare provider.

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