Take Felbatol exactly as your doctor tells you. You may take it with or without food, but try to take it the same way each time.

Tablet use:

• Swallow with water
  
  
• Do not crush or chew unless your doctor says it’s okay
  
  

Liquid use:

• Shake the bottle well
  
  
• Measure the dose with a special spoon or syringe
  
  
• Take it at evenly spaced times (3 or 4 times a day)
  
  

If you miss a dose, take it as soon as you remember. But if it’s almost time for the next dose, skip the missed one. Do not take two doses at once.

Never stop taking Felbatol suddenly—this can cause more seizures. Your doctor will help you stop it safely if needed.

Seizures happen when brain activity becomes too fast or uncontrolled. Felbatol helps calm the brain and prevent seizures.

Felbatol works by:

• Blocking NMDA receptors in the brain that can cause too much brain activity
  
  
• Controlling electrical signals in nerve cells
  
  
• Helping to reduce seizures by affecting how certain chemicals (neurotransmitters) act in the brain
  
  

This makes Felbatol useful for partial seizures and for patients with hard-to-control epilepsy.

Felbatol can cause side effects. Some are common and mild, but others can be serious and life-threatening.

Common side effects:

• Headache
  
  
• Nausea or stomach pain
  
  
• Dizziness
  
  
• Fatigue (tiredness)
  
  
• Trouble sleeping
  
  
• Weight loss
  
  
• Mood changes or anxiety
  
  

Serious side effects (rare but dangerous):

• Aplastic anemia: A serious blood disorder where your body stops making enough blood cells
  
  
• Liver failure: Can cause serious illness or death
  
  
• Severe allergic reactions: Rash, swelling, or difficulty breathing
  
  

Call your doctor immediately if you notice:

• Easy bruising or bleeding
  
  
• Yellow skin or eyes
  
  
• Dark-colored urine
  
  
• Constant sore throat or fever
  
  
• Feeling very tired or weak
  
  

Because of these risks, blood tests are required regularly while using Felbatol.

Felbatol is a high-risk medicine and must be used very carefully.

Important Warnings:

• Aplastic anemia warning: This rare blood disorder can be fatal
  
  
• Liver failure warning: Felbatol can cause serious liver problems, sometimes resulting in death
  
  
• Patients must sign a consent form before starting treatment, showing they understand these risks
  
  

Use with caution if:

• You have had blood problems, liver disease, or mental health issues
  
  
• You are pregnant or breastfeeding (discuss with your doctor first)
  
  
• You take birth control pills—use another form of protection
  
  

Doctors will only prescribe Felbatol when other treatments don’t work, and you are willing to take the risk.

Felbatol may interact with other medications:

• Phenytoin and valproic acid: Levels in the body may change
  
  
• Carbamazepine: May increase side effects
  
  
• Birth control pills: Felbatol can make them less effective
  
  
• Alcohol: Can increase the risk of side effects
  
  

Always tell your doctor about all medicines you take, including vitamins and herbal products.

Adults:

• Start with 1,200 mg/day divided into 3 or 4 doses
  
  
• Increase slowly to 2,400–3,600 mg/day based on response and side effects
  
  

Children:

• Start with 15 mg per kg of body weight per day
  
  
• Can be increased up to 45 mg per kg per day
  
  

The medicine must be taken evenly spaced, and doses must be adjusted slowly by your doctor.

Do not change the dose yourself.

Felbatol is a prescription-only medicine. It is not available over-the-counter and must be prescribed by a neurologist or epilepsy specialist.

Before prescribing Felbatol, the doctor will:

• Review your seizure history
  
  
• Check your liver function and blood counts
  
  
• Explain the risks of aplastic anemia and liver failure
  
  
• Ask you (or a parent/caregiver) to sign a consent form
  
  

You will need:

• Regular blood tests during treatment
  
  

Frequent doctor visits to monitor your health

• What is Felbatol used for?
  It is prescribed to control seizures in patients with:

  • Partial seizures (with or without secondary generalization)

  • Lennox-Gastaut syndrome, a severe form of childhood epilepsy

• What is the active ingredient?
  Felbamate.

• How does Felbatol work?
  It helps stabilize brain activity by:

  • Blocking NMDA receptors (reducing excitatory signals)

  • Enhancing GABA activity (increasing inhibitory effects),
    thus preventing abnormal electrical discharges that cause seizures.

• What type of medication is Felbatol?
  It is an anticonvulsant (antiepileptic drug).

• How is Felbatol taken?
  Orally, as tablets or oral suspension, usually 2–4 times daily.

• When is Felbatol prescribed?
  Typically reserved for patients who have not responded to other antiepileptic drugs due to its potential for severe side effects.

• What are the common side effects?
  Headache, nausea, vomiting, insomnia, dizziness, loss of appetite, and fatigue.

• Are there serious side effects?
  Yes — Felbatol carries two boxed warnings for:

  • Aplastic anemia (severe, potentially fatal bone marrow failure)

  • Liver failure (hepatic toxicity), which can also be fatal.

• What are symptoms of serious side effects?

  • Unusual tiredness or weakness

  • Yellowing of skin or eyes (jaundice)

  • Unexplained bleeding or bruising

  • Persistent sore throat or fever

• Who should not take Felbatol?

  • Patients with a history of liver disease or blood disorders

  • Those who experienced serious reactions to felbamate or similar drugs

• Do patients need regular monitoring?
  Yes — frequent blood tests and liver function tests are required, especially during the first 6 months of treatment.

• Can Felbatol be used in children?
  Yes — approved for use in children with Lennox-Gastaut syndrome, but only under specialist supervision.

• Can Felbatol cause weight changes?
  Yes, weight loss and decreased appetite are relatively common.

• Does Felbatol interact with other medications?
  Yes — it can interact with:

  • Phenytoin

  • Carbamazepine

  • Valproic acid

  • Oral contraceptives (may decrease their effectiveness)

• Can Felbatol be taken during pregnancy?
  Only if clearly needed — it may pose a risk to the fetus, but uncontrolled seizures can also be dangerous.

• Can I take it while breastfeeding?
  No — felbamate passes into breast milk and may harm a nursing infant.

• Does Felbatol cause drowsiness?
  It may cause mild dizziness or insomnia, but less sedation compared to some other anticonvulsants.

• Can I drink alcohol while taking Felbatol?
  No — alcohol can increase side effects and seizure risk.

• How should I stop taking Felbatol?
  Gradually taper under your doctor’s guidance — stopping suddenly can trigger seizures.

• Is there a generic version available?
  Yes, Felbamate is the generic equivalent of Felbatol.

• Where can I get Felbatol?
  Available by prescription only from a neurologist or healthcare provider.