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.
It is best to take this medicine with food or milk.
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. Your doctor might ask you to sign some forms to show that you understand this information.
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.
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 leftover medicine after you have finished your treatment. You will also need to throw away old medicine after the expiration date has passed.
Keep all medicine away from children and never share your medicine with anyone.
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 are also using other medicines to treat seizures (such as carbamazepine, lamotrigine, phenobarbital, phenytoin, Carbatrol®, Dilantin®, Lamictal®, Tegretol®), birth control pills (such as Aygestin®, Brevicon®, Estinyl®, Norinyl®, Ortho-Novum®, Ovcon®), or triazolam (Halcion®).
Tell your doctor if you are using any medicines that make you sleepy. These include sleeping pills, cold and allergy medicine, narcotic pain relievers, and sedatives.
Do not drink alcohol while you are using this medicine.
Make sure your doctor knows if you are pregnant or breastfeeding, or if you have liver disease or heart rhythm problems (such as a shortened QT interval).
If you develop any unusual or strange thoughts and behavior while taking rufinamide, be sure to discuss it with your doctor. Some changes that have occurred in people taking this medicine are like those seen in people who drink too much alcohol. Other changes might be confusion, worsening of depression, hallucinations (seeing, hearing, or feeling things that are not there), suicidal thoughts, and unusual excitement, nervousness, or irritability.
This medicine may make you dizzy, drowsy, clumsy, or less alert. Avoid driving, using machines, or doing anything else that could be dangerous if you are not alert.
Rufinamide may cause serious allergic reactions that may affect several parts of the body, such as the liver or kidney. Check with your doctor right away if you have the following symptoms: fever, dark-colored urine, headache, rash, itching, extra fluid around the face, stomach pain, unusual tiredness, or yellowing of the skin or the whites of your eyes.
Birth control pills may not work as well while you are using rufinamide. To keep from getting pregnant, use another form of birth control along with your birth control pills. Other forms include condoms, a diaphragm, or a contraceptive foam or jelly.
Do not stop using this medicine suddenly without asking your doctor. You may need to slowly decrease your dose before stopping it completely.