What is Fycompa: Uses, Warnings & Interactions

Updated May 14, 2025  •  Published Dec 30, 2020

Fycompa overview

BRAND NAMES:

  • Fycompa 2-Week Sample Kit, Fycompa

Generic Names:

  • Fycompa

Uses:

  • Treats seizures caused by epilepsy.

Therapeutic Classes:

  • Anticonvulsant, Central Nervous System Agent

Forms:

  • Tablet, Liquid

How it’s taken:

  • By mouth

What is Fycompa used for?

What form(s) does Fycompa come in

  • Tablet

  • Liquid

What are common Fycompa doses?

  • Tablet 2MG

  • Tablet 4MG

  • Tablet 6MG

  • Tablet 8MG

  • Tablet 10MG

  • Tablet 12MG

  • Bottle 340ML of 0.5MG/ML

Common Fycompa prescriptions

  • Fycompa
    340ml of 0.5mg/ml bottle

  • Fycompa
    10mg tablet

  • Fycompa
    12mg tablet

  • Fycompa
    2mg tablet

  • Fycompa
    4mg tablet

  • Fycompa
    6mg tablet

  • Fycompa
    8mg tablet

How to take Fycompa

  • Take your medicine as directed. Your dose may need to be changed several times to find what works best for you. This medicine should be taken at bedtime.

  • Measure the oral liquid with the bottle adapter and oral syringe provided. Shake the bottle well before each use.

  • This medicine should come with a Medication Guide. Ask your pharmacist for a copy if you do not have one.

  • Missed dose: If you miss a dose of this medicine, skip the missed dose and go back to your regular dosing schedule. Do not use extra medicine to make up for a missed dose. Call your doctor if you miss more than one dose of this medicine.

  • Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.

  • Throw away any unused oral liquid 90 days after the bottle is opened for the first time.

  • Measure the oral liquid with the bottle adapter and oral syringe provided. Shake the bottle well before each use.

  • Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.

  • Take your medicine as directed. Your dose may need to be changed several times to find what works best for you. This medicine should be taken at bedtime.

  • Missed dose: If you miss a dose of this medicine, skip the missed dose and go back to your regular dosing schedule. Do not use extra medicine to make up for a missed dose. Call your doctor if you miss more than one dose of this medicine.

  • This medicine should come with a Medication Guide. Ask your pharmacist for a copy if you do not have one.

  • Throw away any unused oral liquid 90 days after the bottle is opened for the first time.

What to do if you miss a dose of Fycompa

Fycompa contraindications

  • This medicine is generally considered safe for most people. Talk to your doctor if you have concerns.

Fycompa warnings

  • Keep all medicine out of the reach of children. Never share your medicine with anyone.

  • Tell your doctor if you are pregnant or breastfeeding, or if you have kidney disease, liver disease, or a history of depression, suicidal thoughts, or mood problems.

  • This medicine may cause the following problems: Anger, aggression, hostility, or other mood or behavior changesIncreased risk of depression or suicidal thoughtsIncreased risk for fallsDrug reaction with eosinophilia and systemic symptoms (DRESS), which can damage organs including the liver, kidney, or heart

  • This medicine may make you dizzy, drowsy, unsteady, or less alert. Do not drive or do anything else that could be dangerous until you know how this medicine affects you.

  • Do not stop using this medicine suddenly. Your doctor will need to slowly decrease your dose before you stop it completely.

  • Birth control pills that contain levonorgestrel may not work as well while you use this medicine. Use another form of birth control together with your pills during treatment with this medicine and for at least 1 month after the last dose. Talk to your doctor if you have questions.

Fycompa interactions

  • Some foods and medicines can affect how perampanel works. Tell your doctor if you are also using carbamazepine, oxcarbazepine, phenytoin, rifampin, or St John's wort.

  • Tell your doctor if you use anything else that makes you sleepy. Some examples are allergy medicine, narcotic pain medicine, and alcohol.

  • Do not drink alcohol while you are using this medicine.

  • Do not stop using this medicine suddenly. Your doctor will need to slowly decrease your dose before you stop it completely.

  • Birth control pills that contain levonorgestrel may not work as well while you use this medicine. Use another form of birth control together with your pills during treatment and for at least 1 month after the last dose. Talk to your doctor if you have questions.

  • Keep all medicine out of the reach of children. Never share your medicine with anyone.

Fycompa side effects

Serious Side Effects

  • Unusual mood or behavior, thoughts of hurting yourself

  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing

  • Depression, nervousness, restlessness, trouble sleeping

  • Feeling aggressive, angry, hostile, irritable

  • Swollen, painful, or tender lymph glands in the neck, armpit, or groin, yellow skin or eyes

  • Trouble walking, speaking, or controlling body movements

Less Serious Side Effects

  • Sleepiness or unusual drowsiness

  • Headache, dizziness

  • Weight gain

  • Stomach pain, nausea, vomiting

  • Feeling of constant movement of self or surroundings

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