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Felbamate

Felbamate 600MG

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What is Felbamate?

Felbamate is a medication used to help control certain types of seizures in adults and children with epilepsy, especially when other treatments have not worked. It can be taken alone or with other medications.

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What is Felbamate ?

Felbamate is a medication used to help control certain types of seizures in adults and children with epilepsy, especially when other treatments have not worked. It can be taken alone or with other medications.

Source: MedlinePlus, U.S. National Library of Medicine

  • Yellowing of your skin or the whites of your eyes.
  • Unusual thoughts or behavior.
  • Unusual tiredness or weakness.
  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
  • Anxiety, confusion, depression, or trouble sleeping.
  • Fainting.
  • Fast or uneven heartbeat.
  • Fever, chills, cough, sore throat, and body aches.
  • Loss of seizure control.
  • Swelling in your face, throat, or lips.
  • Tremors.
  • Unusual bleeding or bruising.
  • Wheezing or trouble breathing.
  • It is important to tell your doctor if you become pregnant. Your doctor may want you to join the North American Antiepileptic Drug Pregnancy Registry, which is used by pregnant patients who are taking this medicine.
  • Make sure your doctor knows if you are breastfeeding, or if you have kidney disease, depression, or mental illness.
  • 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.
  • Stop using this medicine and check with your doctor right away if you or your child have pain or tenderness in the upper stomach; pale stools; dark urine; loss of appetite; nausea; unusual tiredness or weakness; or yellow eyes or skin. These could be symptoms of a serious liver problem.
  • Tell your doctor right away if you or your child has chest pain; chills; cough; fever; headache; shortness of breath; sores, ulcers, or white spots on lips or in mouth; swollen or painful glands; tightness in chest; unusual bleeding or bruising; unusual tiredness or weakness; or wheezing. These could be symptoms of aplastic anemia.
  • Do not stop using this medicine suddenly. Your doctor will need to slowly decrease your dose before you stop it completely. .
  • If you or your child develop any unusual or strange thoughts and behavior while taking this medicine, be sure to discuss it with your doctor. 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 or drowsy. Avoid driving, using machines, or doing anything else that could be dangerous if you are not alert.
  • Your doctor will check your progress and the effects of this medicine at regular visits. Keep all appointments. Blood tests may be needed to check for unwanted effects.
  • Unusual thoughts or behavior.
  • Unusual tiredness or weakness.
  • Wheezing or trouble breathing.
  • Yellowing of your skin or the whites of your eyes.
What is felbamate used to treat?
Felbamate is an anticonvulsant used for certain hard-to-treat seizures. The FDA approves it, alone or as an add-on, for partial seizures in adults, and as an add-on for the seizures of Lennox-Gastaut syndrome in children. It is reserved for people whose epilepsy has not responded well enough to other treatments.
Why is felbamate considered a last-resort seizure medication?
Felbamate can cause two rare but serious reactions, aplastic anemia and liver failure, which can be fatal. Because of these risks it is not a first-line drug. It is used only when epilepsy is severe and has not responded to safer options, and only after you and your doctor sign a written informed-consent form.
What are the black box warnings for felbamate?
Felbamate has a boxed warning for two life-threatening reactions: aplastic anemia, a severe failure of blood cell production reported at more than 100 times the general rate, and hepatic (liver) failure. Both usually occur in the first 6 to 12 months but can happen later. It should not be used by anyone with a history of blood or liver problems.
Does felbamate require regular blood and liver monitoring?
Yes. Because of the risk of aplastic anemia and liver failure, doctors typically check complete blood counts and liver function tests before you start and frequently during treatment. Report any fever, infection, unusual bruising or bleeding, severe tiredness, yellowing of the skin or eyes, or dark urine to your doctor right away.
Is felbamate available as a generic?
Yes. Felbamate is the generic version of the brand Felbatol and is available as an FDA-approved generic, which usually costs much less than a brand-name-only medicine. Prices still vary by pharmacy, so enter your ZIP above to compare today's price and use a free Rx.com discount.
How much does Felbamate cost without insurance?
The price of Felbamate without insurance varies by pharmacy, dosage, and quantity. Rx.com compares cash prices at more than 60,000 US pharmacies so you can find the lowest price near you.
What are the common side effects of Felbamate?
Common side effects of Felbamate may include: Yellowing of your skin or the whites of your eyes., Unusual thoughts or behavior., Unusual tiredness or weakness., Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing, Anxiety, confusion, depression, or trouble sleeping.. This is not a complete list — consult your pharmacist or doctor for full side effect information.
Is there a generic version of Felbamate?
Generic versions may be available for Felbamate. Generics contain the same active ingredients as brand-name drugs and are typically 80–90% cheaper. Search Felbamate on Rx.com to compare generic and brand prices at pharmacies near you.
What is the cheapest pharmacy for Felbamate?
The cheapest pharmacy for Felbamate depends on your location and dosage. Rx.com compares prices at CVS, Walgreens, Walmart, Kroger, Costco, and thousands of independent pharmacies. Enter your ZIP code on Rx.com to find the lowest price for Felbamate near you.

Felbamate Coupons & Prices

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Looking for a felbamate coupon? Felbamate is the generic form of Felbatol, a prescription anticonvulsant used for hard-to-treat seizures. Because it is already available as a low-cost generic, you usually do not need a brand-name savings card to pay a fair cash price. What you pay can still vary widely from one pharmacy to the next, so comparing matters. Enter your ZIP code above to see today's felbamate price and a free Rx.com discount that works at more than 60,000 pharmacies nationwide.

What is felbamate and how does it work?

Felbamate (brand name Felbatol) is an antiepileptic, or anticonvulsant, medicine in the dicarbamate class. It is taken by mouth to help control certain seizures by calming the excessive electrical activity in the brain that causes them.

Because of its safety profile, felbamate is not a first-choice seizure medicine. The FDA has approved it only for people whose epilepsy has not responded well enough to other treatments and is severe enough that the known risks are considered acceptable. Its approved uses are: as a stand-alone or add-on therapy for partial seizures (with or without generalization) in adults, and as an add-on therapy for the partial and generalized seizures of Lennox-Gastaut syndrome in children. It should be used exactly as your neurologist directs, and only for these conditions.

Felbamate cost and how to save without insurance

Felbamate is available as an FDA-approved generic, which typically keeps its cash price far below what a brand-name-only drug would cost. There is no manufacturer copay card for generic felbamate, but for most people the generic price plus a free pharmacy discount is the more affordable route than chasing a brand coupon.

Even for a generic, prices are not the same everywhere. The cash price at one pharmacy can be very different from the pharmacy across the street, so it pays to compare before you fill. Rx.com checks prices across more than 60,000 U.S. pharmacies and shows you a free discount you can use with or without insurance. Enter your ZIP code above to see today's felbamate price near you. The Rx.com card is free to use and requires no membership.

Felbamate vs. other seizure medicines

Felbamate is usually reserved for refractory (hard-to-treat) epilepsy after other options have been tried. Depending on your diagnosis, your neurologist may consider or combine it with other antiepileptic drugs. Related medicines people compare include:

These medicines differ in how they work, their side effects, and their monitoring needs. Only your prescriber can decide which seizure medicine, or combination, is right for you. This information is not medical advice, so never start, stop, or switch a seizure medication on your own.

Felbamate safety and monitoring

Felbamate carries a boxed warning, the FDA's strongest warning, for two rare but life-threatening reactions: aplastic anemia (a severe drop in blood cell production, with a risk reported at more than 100 times that of the general population and often fatal) and liver (hepatic) failure. Because of these risks, felbamate is not used unless the potential benefit clearly outweighs the danger, and you must sign a written informed-consent acknowledgment with your doctor before starting. It should not be used by anyone with a history of a blood disorder or liver problems, and it is contraindicated in people allergic to felbamate or other carbamates.

Your care team will typically check your complete blood counts and liver function tests before you begin and frequently during treatment, most often in the first 6 to 12 months, though problems can appear later. Like other antiepileptic drugs, felbamate may increase suicidal thoughts or behavior in a small number of people. It can also raise blood levels of medicines such as phenytoin, valproate, and an active byproduct of carbamazepine, so doses may need adjusting. The most common side effects include nausea and vomiting, loss of appetite and weight loss, headache, trouble sleeping, drowsiness, and dizziness. Tell your doctor right away about fever, infection, unusual bruising or bleeding, extreme tiredness, yellowing skin or eyes, or dark urine.

Sources & accuracy

This Felbamate information was written and reviewed against authoritative U.S. medical sources — MedlinePlus (U.S. National Library of Medicine), DailyMed, and FDA prescribing information — and checked for accuracy. It is provided for education and is not a substitute for professional medical advice.

Verify the official label: Felbamate on DailyMed (FDA)

Reviewed against FDA labeling · Last reviewed July 2026

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Medical disclaimer: This information is provided for general educational purposes only and is not medical advice. It is not a substitute for professional diagnosis or treatment. Always consult a licensed physician, pharmacist, or other qualified healthcare provider before starting, stopping, or changing any medication or treatment. Never disregard professional medical advice or delay seeking it because of something you read here. If you think you may have a medical emergency, call your doctor or 911 immediately.


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