Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community


    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Epilepsy Health Center

Font Size

Study: No Proof of Epilepsy Drug Suicide Risk

Study Finds No Evidence of Increased Risk for Suicide Attempts or Suicides Associated With Seizure Drugs in Patients With Epilepsy
WebMD Health News
Reviewed by Laura J. Martin, MD

Aug. 4, 2010 -- Drugs used by epilepsy patients to control seizures now carry a warning that the medications may increase the risk for suicide, but a newly published analysis involving more than 5 million people finds no evidence of such a risk.

The study is the latest to challenge a 2008 research review by the FDA that linked many commonly prescribed epilepsy drugs to an increase in suicidal thoughts and behaviors.

Researchers examined data collected from patients treated with seizure medications for epilepsy, depression, or bipolar disorder in the U.K. during a 20-year period ending in 2008.

Suicide Risk Higher in Epilepsy Patients

As previously reported, patients with any of the three conditions had a higher risk for suicide, compared to the general population.

But no increase in risk associated with treatment was seen among patients with a diagnosis of epilepsy alone.

The research appears in the Aug. 5 issue of the New England Journal of Medicine.

Massachusetts-based drugmaker Sepracor Inc. funded the study. The company is seeking FDA approval for its seizure drug Stedesa.

“Even in patients with epilepsy and depression, the risk was low,” lead researcher Alejandro Arana, MD, of the drug safety research group Pharmacovigilance Services, tells WebMD. “We did not find any increase in risk associated with use of anti-epileptic drugs by patients with epilepsy.”

Unlike many previous studies, the researchers were able to individually assess risk among different groups of patients treated with seizure drugs, including those with epilepsy, depression, or bipolar disorder alone and patients with epilepsy and depression or epilepsy and bipolar disorder.

Certain seizure drugs are used for the treatment of depression and bipolar disorder, in addition to epilepsy.

Neurologist and epilepsy researcher Josemir W. Sander, MD, of the University College London, says the assessment of risk in different subtypes of patients is a major strength of the study.

Specific Drugs Not Examined

An increase in suicide risk associated with treatment was found in patients with depression alone and in patients with an unknown diagnosis without epilepsy, depression, or bipolar disorder.

Researchers were not able to assess risk associated with specific seizure medications. Several recently reported studies have been contradictory.

Today on WebMD

human head and brain waves
Causes, symptoms, and treatments.
Grand mal seizure
How is each one different?
marijuana plant
CBD, a plant chemical, may cut down seizures.
prescription bottle
Which medication is right for you?
Seizures Driving
Questions for Doctor Epilepsy
Graces Magic Diet
Pills spilling from bottle in front of clock
first aid kit
Caring Child Epilepsy
Making Home Safe
epilepsy monitoring

WebMD Special Sections