Treats seizures in adults and infantile spasms in children. This medicine is an anticonvulsant.
There may be other brand names for this medicine.
When This Medicine Should Not Be Used
Do not use this medicine if you have had an allergic reaction to vigabatrin.
How to Use This Medicine
- Your doctor will tell you how much of this medicine to use and how often. Your dose may need to be changed several times in order to find out what works best for you. Do not use more medicine or use it more often than your doctor tells you to.
- Oral liquid:
- Open the packet and empty the contents into an empty cup.
- Mix the powder with cold or room temperature water. Use an oral syringe to measure the right amount of water.
- Do not use the liquid if you see particles in it. The mixed medicine should be clear and colorless.
- Measure the oral liquid medicine with a marked measuring spoon, oral syringe, or medicine cup.
- Throw away any unused liquid after the dose is given.
- This medicine may be used together with other seizure medicines. Keep using all of your medicines unless your doctor tells you to stop.
- This medicine should come with a Medication Guide. Read and follow these instructions carefully. Ask your doctor or pharmacist if you have any questions. Ask your pharmacist for the Medication Guide if you do not have one.
If a dose is missed:
- If you miss a dose or forget to use your medicine, use it as soon as you can. If it is almost time for your next dose, wait until then to use the medicine and skip the missed dose. Do not use extra medicine to make up for a missed dose.
How to Store and Dispose of This Medicine
- Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.
- Ask your pharmacist, doctor, or health caregiver about the best way to dispose of any outdated medicine or medicine no longer needed.
- Keep all medicine away from children and never share your medicine with anyone.
Drugs and Foods to Avoid
Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.
- Make sure your doctor knows if you also use clonazepam (Klonopin®), fosphenytoin (Cerebyx®), or phenytoin (Dilantin®).
Warnings While Using This Medicine
- Make sure your doctor knows if you are pregnant or breastfeeding. Tell your doctor if you have kidney disease, anemia, eye or vision problems, nerve problems (neuropathy or numbness), or a history of depression or mental illness.
- This medicine may cause permanent vision loss. Check with your doctor right away if you have blurred vision, difficulty reading, or any other change in vision during or after treatment. You will need regular eye exams while you are using this medicine.
- Make sure any doctor or dentist who treats you knows that you are using this medicine. This medicine may affect the results of certain medical tests.
- This medicine can increase thoughts of suicide. Tell your doctor right away if you start to feel more depressed and have thoughts about hurting yourself. Report any unusual thoughts or behaviors that trouble you, especially if they are new or getting worse quickly.
- Do not stop using this medicine suddenly without asking your doctor. You may need to slowly decrease your dose before stopping it completely.
- This medicine may make you drowsy, sleepy, or tired. Do not drive, use machines, or do anything else that could be dangerous until you know how this medicine affects you.
- Check with your doctor right away if you have burning, numbness, tingling, or painful sensations in your arms, hands, legs, or feet. These could be symptoms of peripheral neuropathy.
- Your doctor will need to check your progress at regular visits while you are using this medicine. Be sure to keep all appointments.
Possible Side Effects While Using This Medicine
Call your doctor right away if you notice any of these side effects:
- Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
- Blurred vision, changes in vision, loss of vision
- Feeling depressed, anxious, irritable
- Numbness, tingling, or burning pain in your hands, arms, legs, or feet
- Rapid weight gain, swelling in your hands, ankles, or feet
- Unusual moods or behavior, thoughts of hurting yourself or others
- Unusual bleeding, bruising, tiredness, or weakness
If you notice these less serious side effects, talk with your doctor:
- Constipation, diarrhea, nausea, vomiting
- Decreased appetite
- Fever, cough, stuffy or runny nose, sore throat
- Headache, dizziness, trouble sleeping
- Joint, muscle, or back pain
- Memory problems
- Uncontrolled eye movements, tremors
- Unusual drowsiness or sleepiness
- Weight gain