Sabril® (vigabatrin) for Refractory Complex Partial Seizures (CPS)

Patient taking Sabril for his refractory complex partial seizures.

Sabril is a prescription medicine used along with other treatments in adults and children 10 years of age and older with refractory complex partial seizures (CPS) if:

  • The complex partial seizures do not respond well enough to several other treatments, and
  • You and your doctor decide the possible benefits of taking Sabril are more important than the risk of permanent vision loss

Sabril should not be the first medicine used to treat your CPS.

Possible Benefits of Sabril for Refractory CPS

In adults and children 10 years of age and older for whom the possible benefits of treatment outweigh the risks of permanent vision loss, Sabril can be used as an add-on therapy to help reduce the number of refractory CPS. The effectiveness of Sabril in adults was established in 2 clinical trials reviewed by the US Food and Drug Administration (FDA). For children 10 to 16 years of age with refractory CPS, researchers looked at 2 studies in adults and at data in children, which together were used to show effectiveness and determine proper dosing in this age group.

About Refractory CPS

A complex partial seizure (CPS) is a type of seizure that starts in a specific area of the brain and can affect consciousness. Typically, complex partial seizures last between 30 and 90 seconds, and are often followed by a period of disorientation, confusion and/or fatigue. Complex partial seizures may happen in either side of the brain.1

Symptoms of Complex Partial Seizures1

Complex partial seizures may cause you to:

Lose consciousness

Be unaware of what is happening during the seizure

Stare blankly

Move or act without purpose. You may chew, mumble, pick at the air, or act strangely. These are called automatisms

Feel confused or sleepy after the seizure

Refractory Complex Partial Seizures

Sometimes a person’s seizures cannot be controlled even after he or she has tried several antiepileptic medicines. When this happens, it is called refractory epilepsy.2 In a medical study of people with epilepsy, about 1 of 3 had refractory epilepsy.3 Why this happens and whether it can be predicted is unclear.

References

  1. 1. Complex Partial Seizures. Epilepsy Foundation website. http://www.epilepsy.com/epilepsy/seizure_complexpartial. Accessed February 16, 2017.
  2. 2. Refractory Epilepsy. Epilepsy Foundation website. http://www.epilepsy.com/learn/refractory-epilepsy. Accessed February 16, 2017.
  3. 3. Kwan P, Brodie MJ. Early identification of refractory epilepsy. N Engl J Med. 2000;342(5):314-319.

SABRIL® (vigabatrin) Tablets and Powder for Oral Solution

Use

SABRIL (vigabatrin) is a prescription medicine used with other treatments in adults and children 10 years of age and older with refractory complex partial seizures (CPS) who have not responded well enough to several other treatments and if the possible benefits outweigh the risk of vision loss. SABRIL should not be the first medicine used to treat CPS.

SABRIL (vigabatrin) is a prescription medicine used in babies, 1 month to 2 years old, with infantile spasms (IS), if the possible benefits outweigh the possible risk of vision loss.

IMPORTANT
SAFETY INFORMATION

EXPAND

WARNING: PERMANENT VISION LOSS

See Medication Guide and full Prescribing Information for complete information.

All people who take SABRIL:

  • You are at risk for vision loss with any amount of SABRIL.
  • Your risk of vision loss may be higher the more SABRIL you take daily and the longer you take it.
  • It is not possible for your healthcare provider to know when vision loss will happen. It could happen soon after starting SABRIL or any time during treatment. It may even happen after treatment has stopped.

IMPORTANT
SAFETY INFORMATION

COLLAPSE

WARNING: PERMANENT VISION LOSS

See Medication Guide and full Prescribing Information for complete information.

All people who take SABRIL:

  • You are at risk for vision loss with any amount of SABRIL.
  • Your risk of vision loss may be higher the more SABRIL you take daily and the longer you take it.
  • It is not possible for your healthcare provider to know when vision loss will happen. It could happen soon after starting SABRIL or any time during treatment. It may even happen after treatment has stopped.
  • Because SABRIL might cause permanent vision loss, it is available to healthcare providers and patients only under a special program called the Vigabatrin Risk Evaluation and Mitigation Strategy (REMS) Program. Your healthcare provider will explain the details of this Program to you.
  • SABRIL can damage the vision of anyone who takes it. People who take SABRIL do not lose all of their vision, but some people can have severe loss particularly to their ability to see to the side when looking straight ahead (peripheral vision). With severe vision loss, you may only be able to see things straight in front of you (sometimes called "tunnel vision"). You may also have blurry vision. If this happens, it will not get better.
  • Tell your healthcare provider right away if you (or your child): might not be seeing as well as before starting SABRIL; start to trip, bump into things, or are more clumsy than usual; are surprised by people or things coming in front of you that seem to come out of nowhere; or if your baby is acting differently than normal. These changes can mean that vision damage has occurred.
  • It is recommended that your healthcare provider test your (or your child’s) vision before or within 4 weeks after starting SABRIL, and at least every 3 months during treatment until SABRIL is stopped. It is also recommended that vision be tested about 3 to 6 months after SABRIL is stopped. It is difficult to test vision in babies, but to the extent possible, all babies should have their vision tested. Your healthcare provider will determine if testing can be done. Regular vision testing is important because damage can happen before any changes are noticed.
  • Vision tests cannot prevent the vision damage that can happen with SABRIL, but they do allow SABRIL to be stopped if vision has gotten worse, which usually will lessen further damage. Even these regular vision tests may not show vision damage before it is serious and permanent. Parents, caregivers, and healthcare providers may not recognize the symptoms, or find vision loss in babies, until it is severe.
  • If vision tests are not done regularly, your healthcare provider may stop prescribing SABRIL for you (or your child). Some people are not able to complete vision testing. If vision testing cannot be done, your healthcare provider may continue prescribing SABRIL, but will not be able to watch for any vision loss.
  • Brain pictures taken by magnetic resonance imaging (MRI) show changes in some babies after they are given SABRIL. It is not known if these changes are harmful.
  • Like other antiepileptic drugs, SABRIL may cause suicidal thoughts and actions in some people. Call a healthcare provider right away if you (or your child) have any symptoms, especially sudden changes in mood, behaviors, thoughts or feelings, and especially if they are new, worse, or worry you.
  • Do not stop SABRIL without first talking to a healthcare provider. Stopping SABRIL suddenly can cause seizures that will not stop.
  • SABRIL can cause serious side effects such as low red blood cell counts (anemia), sleepiness and tiredness, nerve problems, weight gain, and swelling. Because SABRIL causes sleepiness and tiredness, do not drive, operate machinery, or perform any hazardous task, unless it is decided that these things can be done safely. SABRIL may make certain types of seizures worse. Tell your healthcare provider right away if seizures get worse.
  • Before starting SABRIL, tell your doctor about all of your (or your child’s) medical conditions including depression, mood problems, suicidal thoughts or behavior, any allergic reaction to SABRIL, vision problems, kidney problems, low red blood cell counts (anemia), and any nervous or mental illness. Tell your doctor about all the medicines you (or your child) take.
  • If you are breastfeeding or plan to breastfeed, SABRIL can pass into breast milk and may harm your baby. If you are pregnant or plan to become pregnant, it is not known if SABRIL will harm your unborn baby. You and your healthcare provider will have to decide if you should take SABRIL while you are pregnant.
  • The most common side effects of SABRIL in adults include: problems walking or feeling uncoordinated, feeling dizzy, shaking (tremor), joint pain, memory problems and not thinking clearly, and eye problems like blurry vision, double vision, and eye movements that cannot be controlled. The most common side effects of SABRIL in children 10 to 16 years of age include weight gain, upper respiratory tract infection, tiredness, and aggression. Also expect side effects like those seen in adults.
  • The most common side effects of SABRIL in babies include: sleepiness—some babies may have a harder time suckling and feeding or may be irritable, swelling in the bronchial tubes (bronchitis), ear infection, and irritability.
  • Tell your healthcare provider if you or your child have any side effect that bothers you or that does not go away. These are not all of the possible side effects of SABRIL. For more information, ask your healthcare provider or pharmacist.

For more information, please see SABRIL Medication Guidefull Prescribing Information including Boxed Warning for risk of permanent vision loss, and Instructions for Use.

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch, or call .

The product information provided in this site is intended only for residents of the U.S. The health information contained herein is provided for educational purposes only and is not intended to replace discussions with a healthcare provider. All decisions regarding patient care must be made with a healthcare provider, considering the unique characteristics of the patient. Sabril may not be a fit for everyone. You and your doctor should decide if the possible benefits of taking Sabril are more important than the risk of permanent vision loss.

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