Felbamate (By mouth)

Introduction

Felbamate (FEL-ba-mate)

Used alone or with other medicines to control seizures. Also given to children with a type of epilepsy called Lennox-Gastaut syndrome. Belongs to a class of drugs called anticonvulsants.

Brand Name(s)

Felbatol

There may be other brand names for this medicine.

When This Medicine Should Not Be Used

You should not use this medicine if you have had an allergic reaction to felbamate or to related medicines such as such as methocarbamol (Robaxin®) or meprobamate (Equagesic®). You should not use this medicine if you have ever had liver disease or blood disorders.

How to Use This Medicine

Tablet, Liquid

• Your doctor will tell you how much to take and how often.
• May be taken with food to avoid stomach upset.
• Shake the oral liquid well before using. Carefully measure the dose using a measuring spoon or medicine cup.

If a dose is missed:

• Take your medicine as soon as you remember that you have missed your dose.
• You should not use two doses at the same time, unless directed by your doctor.
• If you miss two or more doses, call your doctor.

How to Store and Dispose of This Medicine

• Keep this medicine in its original tightly closed container at room temperature, away from heat, direct light, and moisture. Do not freeze the oral liquid.
• Keep all medicine out of the reach of children.

Drugs and Foods to Avoid

Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.

• Be sure that your doctor knows about all other medicines you are using to treat or prevent seizures.

Warnings While Using This Medicine

• Felbamate has caused a few cases of a serious blood disorder called aplastic anemia and a few cases of liver failure. Talk to your doctor about these risks.
• If you are pregnant or breastfeeding, talk to your doctor before using this medicine.
• Make sure your doctor knows if you have liver or kidney disease or a history of blood problems.
• Because of the risk of increased seizures, do not suddenly stop taking this medicine without first checking with your doctor.
• This medicine may cause drowsiness. Be careful when driving or using dangerous machinery.

Possible Side Effects While Using This Medicine

Call your doctor right away if you notice any of these side effects:

• Fainting
• Fast or irregular heartbeat
• Loss of seizure control
• Skin rash, hives, or itching
• Swelling in face, throat, or lips
• Unusual bleeding or bruising
• Unusual tiredness or weakness
• Wheezing or trouble breathing
• Yellow eyes or skin

If you notice these less serious side effects, talk with your doctor:

• Constipation
• Drowsiness or dizziness
• Fever
• Headache
• Loss of appetite, nausea, or vomiting
• Trouble sleeping, nervousness