Fycampa

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Fycampa

Method of action: Antiepileptic

Treatment option: Seizure, Epilepsy

Medically reviewed

Laura Arias

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Fycampa

Property Description
Active ingredient Perampanel
Form Film-coated tablet, Oral suspension
Pharmacological class Antiepileptic Drug (AED) / Anticonvulsant
Common use Seizure control in epilepsy
Origin Synthetic, First-in-class

Fycompa is a prescription-only antiepileptic medicine (AED), also known as an anticonvulsant, utilized for the management of seizures associated with epilepsy. Its active ingredient is the chemically synthesized compound Perampanel. This medication is classified as a single-ingredient product and is designed for oral administration.


What Type of Medicine is Fycompa (Perampanel)?

Perampanel is a synthetic compound that belongs to the anticonvulsant pharmacological class, specifically characterized as a selective non-competitive AMPA glutamate receptor antagonist. This medicine helps stabilize the nerve cell signaling that can lead to seizures. It is clinically recognized for providing significant benefits when managing certain types of partial-onset seizures, often proving effective in patients who have not responded adequately to other treatments. It is recognized as a first-in-class AED because it was the first agent approved to act via this highly specific mechanism. Fycompa's fundamental purpose is to stabilize abnormal electrical activity in the brain to reduce the occurrence and severity of seizures.

What Forms and Composition Does Fycompa Have?

The active ingredient, Perampanel, is supplied for oral administration in two primary dosage forms: a film-coated tablet and an oral suspension (liquid solution). Both forms provide a reliable means to deliver the medication effectively. The tablets utilize a solid oral base, while the liquid suspension is prepared using an aqueous base. The availability of both forms, particularly the liquid suspension, allows for necessary flexibility in administration across different patient groups, including children (aged ge 4 years) who may struggle to swallow solid forms.

How Does Fycompa Generally Affect Brain Activity?

Fycompa functions by reducing the neuronal excitation that drives seizures. It achieves this by focusing on glutamate, the brain's principal excitatory neurotransmitter. As an AMPA receptor antagonist, Perampanel selectively blocks the action of glutamate at the postsynaptic AMPA receptor, thereby curbing the hyperexcitability that contributes to the generation and spread of epileptic discharges. The medication may be used as monotherapy (used alone) or as adjunctive therapy (used alongside other AEDs) for seizure control in adults and adolescents.

Regulatory References

  1. FDA DailyMed

What side effects are possible with Fycampa?

The possible side effects and safety characteristics of Fycompa (Perampanel) are formally classified by regulatory authorities based on clinical experience.

Adverse Reaction Scope

Adverse reactions are formally grouped by the body system affected, with the most common effects related to the Nervous System and Psychiatric Disorders.

Frequency System-Organ Class (SOC) Focus Examples (Label Terminology)
Common (Affects ge 1/100 to <1/10) Nervous System, Psychiatric Dizziness, Somnolence (sleepiness), Headache, Fatigue, Irritability, Ataxia (lack of coordination), Weight gain.
Uncommon (Affects ge 1/1,000 to <1/100) Psychiatric Suicidal ideation or behavior, Anger, Psychotic disorder.

Serious adverse reactions explicitly documented in official labeling include new or worsening Aggressive Behavior/Hostility, Suicidal Behavior and Ideation, Hepatotoxicity (severe liver injury), and rare Serious Cutaneous Adverse Reactions (SCARs), such as Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS).

Safety-Related Restrictions

Certain constraints on use are defined in regulatory documents based on patient health status:

  • Severe Hepatic Impairment: The medication is contraindicated in individuals with severe hepatic impairment.
  • Severe Renal Impairment: Use is not recommended in patients with severe renal impairment or those undergoing haemodialysis.

Exposure-Related Patterns: Common adverse reactions, such as Dizziness and Somnolence, are officially noted as being more likely to occur during the initial phase of treatment or following an increase in dosage. Regulatory documents also advise that discontinuation of the drug should be performed gradually to mitigate the potential risk of increasing seizure frequency.

Connection to the overall safety profile

This structured safety information establishes the official understanding of Fycompa's risk profile by clearly categorizing the frequency and nature of potential side effects, from expected CNS effects to rare, serious adverse events. These classifications, along with explicit constraints on use in specific populations, define the boundaries of the drug’s application according to government regulatory standards.

Overdose and Emergency Response

An overdose of Perampanel (Fycampa) is primarily characterized by central nervous system (CNS) manifestations, as documented in official regulatory sources. Documented presentations include altered mental status, agitation, and instances of hostile or aggressive behavior. Severe exposures, especially when exceeding the maximum recommended dose, carry the risk of severe CNS depression, potentially escalating to coma.

Any suspected overdose is considered a serious medical event and necessitates immediate action. Regulatory authorities mandate that immediate medical attention must be sought, and individuals should contact emergency services or a Poison Control Center for urgent guidance.

Management of Perampanel overdose is defined as symptomatic and supportive treatment. A critical consideration is that no specific antidote is known for Perampanel. Due to the medicine's long half-life, clinical procedures may include the consideration of gastric lavage or administration of activated charcoal to reduce absorption. Prolonged monitoring in a hospital setting may be required to observe the patient for signs of persistent CNS depression and to ensure stabilization. The drug's characteristics indicate that dialysis is not expected to be an effective means of elimination.

Therapeutic Uses of Fycampa

Fycompa (perampanel) is an anti-epileptic medicine used in situations involving certain distressing symptoms—specifically, epileptic seizures. It is applied in addressing two main types of seizures: partial seizures and primary generalised tonic-clonic seizures.

Fycompa is generally used as an adjunctive therapy (an 'add-on' to other anti-epileptic drugs) for patients experiencing these seizure types. This clinical context is relevant when supportive symptom management is appropriate during conditions characterized by periods of heightened symptoms (seizures). Fycompa may assist with managing symptoms of increased neurological or muscular activity.

The primary purpose is relevant for easing discomfort and providing symptomatic relief that helps patients cope more steadily during episodes of heightened discomfort. The medicine supports general well-being by helping to ease the overall symptom burden. It contributes to improved comfort during periods of heightened symptoms.

Quick Fact: Relief for Symptoms that Interfere with Daily Functioning

Eligibility and Restrictions for Use

Fycampa (perampanel) is an anti-epileptic medication used to treat certain types of seizures. It can be used alone or with other seizure medications.

Approved Uses and Age Restrictions

Seizure Type Usage Minimum Age
Partial-Onset Seizures (with or without secondary generalization) Monotherapy or Adjunctive Therapy 4 years and older
Primary Generalized Tonic-Clonic Seizures Adjunctive Therapy 12 years and older

When Fycampa May Not Be Recommended

There are generally no absolute contraindications listed for Fycampa, meaning no conditions automatically prevent its use. However, its use requires careful consideration and dose adjustment in patients with:

  • Severe Liver Impairment: Use is generally not recommended or requires significant dose reduction.
  • Severe Kidney Impairment or Hemodialysis: Use is not generally recommended.

Caution is also advised for patients with a history of psychiatric or behavioral problems, including depression, aggression, or suicidal thoughts, as Fycampa may increase the risk of these events. Close monitoring is necessary for these individuals, as well as for the elderly due to a potential increase in certain side effects like dizziness and falls.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The interaction profile of Fycampa (perampanel) is defined by its metabolic clearance and potential for additive pharmacodynamic effects, as described in official regulatory documents.

Pharmacokinetic Interactions: Exposure Alteration

Fycampa's clearance is subject to induction by other medicines, primarily those that are strong inducers of Cytochrome P450 (CYP) 3A4/3A5 enzymes. This results in a significant reduction in perampanel exposure, which may lead to reduced efficacy.

  • Medicines that Decrease Perampanel Exposure: Co-administration with enzyme-inducing antiepileptic drugs, such as Carbamazepine, Phenytoin, and Oxcarbazepine, reduces perampanel plasma concentrations by approximately 50% to 67%. The strong CYP3A4 inducer Rifampin and the herbal product St. John's Wort are also expected to decrease exposure, and their use is officially not recommended.

  • Perampanel's Effect on Other Medicines: Perampanel, specifically at the 12 mg per day dose, can reduce the effectiveness of hormonal contraceptives containing levonorgestrel by approximately 40%, a documented pharmacokinetic interaction.

Pharmacodynamic Interactions and Substance Restrictions

Co-administration with other substances can enhance CNS depressant effects:

  • Alcohol: The combination of perampanel and alcohol significantly worsens mood and increases the risk of anger, confusion, and CNS depression. Patients are formally advised to avoid the use of alcohol.

  • CNS Depressants: Caution is advised with other drugs that cause sedation due to the potential for additive CNS depression.

Population-Specific Interaction Notes

Official labeling states that use is not recommended for patients with severe hepatic impairment or severe renal impairment (including those on hemodialysis), due to altered clearance that may heighten drug exposure and interaction effects.

Mechanism of Action

Targeting Receptor-Mediated Signaling

Fycompa (perampanel) is a selective, non-competitive antagonist of the AMPA receptor (AMPAR). This action involves modulation of key pathways within receptor- or enzyme-mediated signaling. This inhibition of AMPA receptors reduces the excitatory glutamatergic neurotransmission in the brain, which is a key mechanistic cascade.


Influence on Neuronal Excitability

By reducing the signaling mediated by AMPA receptors—which are critical for rapid excitatory transmission—the drug engages mechanisms that modulate dysregulated excitatory processes within the central nervous system. This modification contributes to the physiological effect of reducing excessive neuronal discharge within the targeted pathways.


Modulation of Pathway Activity and Synaptic Transmission

Fycompa modifies early molecular steps that shape systemic physiological outcomes by affecting pathway activity associated with high levels of excitation. It is relevant in systems where the neurotransmitter glutamate dominates. Its application affects physiological responses by reducing the effects of high-level excitatory mediator activity in synaptic transmission.

Dosage and Administration Information

How to Use Fycompa (Perampanel): Administration Guidelines

The use of Fycompa is governed by specific instructions detailing its administration, schedule, and dose management. This medicine is available as a film-coated tablet and an oral suspension.

Fycompa is administered orally once daily, and the prescribed dose should be taken at bedtime (qHS), with or without food. The tablets should not be crushed, split, or chewed. When using the oral suspension, it must be shaken well before use, and the dose should be accurately measured using the provided syringe.

Dosing and Schedule Structure

Treatment is initiated at a low dose and then gradually increased (titrated) to reach the maintenance level. This process is structured by specific time constraints:

Instruction Standard Regimen Population Adjustment
Starting Dose 2 mg once daily
Titration Increment Increase by 2 mg/day
Titration Interval No more frequently than weekly No more frequently than every two weeks for older adults
Maximum Dose 12 mg once daily 6 mg (mild hepatic impairment); 4 mg (moderate hepatic impairment)

Procedural Conditions

When discontinuing the medicine, the dose should be reduced gradually (tapered) to adhere to established usage protocols. If a single dose is missed, the patient should wait and take the next dose as scheduled at bedtime. If multiple doses are missed, guidelines recommend considering re-starting treatment from a low dose.

This structured protocol ensures a consistent and controlled pattern of use, adhering to established safety and efficacy standards.

Recent Clinical Evidence

Research evidence / Overview of Studies for Fycampa


Evidence for Use in Partial-Onset Seizures

This section will summarize the structure of the clinical evidence for the use of Fycampa as an add-on treatment for partial-onset seizures, focusing on the randomized, placebo-controlled trials that formed the basis for regulatory review and the specific outcomes they were designed to measure.

Fycampa was studied for use as an add-on treatment for partial-onset seizures in adults and adolescents who were already receiving other anti-seizure medications, often including those whose seizures were inadequately controlled by prior treatments. The foundation of this evidence relies on multiple short-term, randomized, double-blind, placebo-controlled trials. Researchers primarily measured outcomes related to episodic or acute changes by tracking the median percent change in seizure frequency over a set period and the responder rate, which is the percentage of participants achieving a 50% or greater reduction in the frequency of their seizures.

Research describes the difference in the proportion of participants who received the study medication compared to those who received placebo who met the prespecified ge 50% reduction endpoint. However, the core controlled evidence primarily involved patients with refractory epilepsy, meaning that results apply only to the populations studied. There is limited information for long-term outcomes for monotherapy (using Fycampa alone), as the initial pivotal research focused on its use as an adjunctive treatment.


Evidence for Use in Primary Generalized Tonic-Clonic Seizures

This part will detail the specific research available for Primary Generalized Tonic-Clonic Seizures, outlining the type of pivotal controlled study that was conducted and the seizure-specific endpoints that were examined in that defined patient population.

Research exploring short-term symptom changes in Primary Generalized Tonic-Clonic Seizures (PGTCS) was evaluated in a single pivotal randomized, double-blind, placebo-controlled trial. The primary focus of this trial was used in research exploring short-term symptom changes, specifically the frequency of these particular types of generalized seizures.

The study described patterns observed in the research regarding the frequency of PGTCS, with measurements reported as a median percent change in seizure frequency, which differed from the change measured in the placebo group. A key limitation is that the high-level controlled evidence for this indication is based on just one study, and the research population was specifically restricted to individuals with Idiopathic Generalized Epilepsy. This means the results apply only to the populations studied under these specific research conditions.


Long-Term Evidence and Durability of Study Findings

Following the short, controlled trials, patients was observed in long-term open-label extension studies (OLEs), some lasting up to two years or more. These OLEs were used in research exploring how symptoms change over time. Follow-up in the open-label phase documented the measurements of seizure frequency over extended time intervals. However, since the long-term portion of the research was open-label, the certainty remains low compared to the initial double-blind periods, and long-term effects are not fully established in a controlled environment.

Key Studies & References

  1. Perampanel Shows Efficacy in Pivotal Trial (Primary Generalized Tonic-Clonic Seizures, Study 332)

Frequently Asked Questions (FAQ)

Common questions about Fycampa (FAQ)


Q: Is Fycampa classified as a controlled substance?

Yes, Fycampa (perampanel) is classified as a Schedule III controlled substance by the U.S. Drug Enforcement Administration (DEA). The Schedule III classification reflects its established medical use along with a determined potential for abuse or physical dependence, a finding noted in regulatory studies.


Q: What is Fycampa used for besides epilepsy?

According to regulatory documents, the medicine is currently approved only for use as an add-on treatment for two specific types of epileptic seizures: partial-onset seizures and primary generalized tonic-clonic seizures. Official product information currently lists indications only for these specific uses.


Q: Can Fycampa cause issues with balance or walking?

Official safety data indicates that Fycampa can be associated with adverse reactions affecting movement and coordination. These effects, which include gait disturbance and ataxia (unsteadiness or lack of muscle control), are listed as common events. Official documentation notes that these events may occur mostly during the initial dose titration phase or following a dose increase.


Q: What is the difference between Fycampa and other older seizure medicines?

The mechanism of action for Fycampa (perampanel) is described as distinct from many other seizure medicines. Official documents state that it is a selective, non-competitive antagonist of the AMPA receptor (a type of protein in the brain). This action helps to reduce the over-activity of nerve signals that can trigger seizures.


Q: Are there any long-term effects of taking Fycampa?

The core evidence that established the drug's efficacy comes from short-term controlled studies. As the core evidence comes from short-term controlled studies, the certainty regarding long-term effects is limited compared to the initial double-blind data, even though some patients were observed in long-term extension studies.


Q: What should I do if I feel unusually aggressive after starting Fycampa?

Official documentation states that aggression or hostility are serious adverse reactions associated with Fycampa. If new or worsening behavioral changes are observed, official documents advise contacting a healthcare provider promptly. Close monitoring of mood and behavior is recommended, especially during the initial titration period.


Q: Is Fycampa a brand name, and what is the generic name?

Yes, Fycampa is the brand name. The generic name, or active ingredient, for the medicine is perampanel.


Q: What are the most common reasons why Fycampa treatment is stopped?

Official safety data indicates that psychiatric and behavioral reactions, such as hostility and aggression, were among the reasons for dose reduction or discontinuation in clinical trials, particularly at higher doses. These adverse reactions led to treatment modification in some participants.


Q: Do children or teenagers take Fycampa?

The medicine is approved for use in certain pediatric populations, depending on the type of seizure. For partial-onset seizures, it is approved for patients 4 years of age and older. For primary generalized tonic-clonic seizures, it is approved for patients 12 years of age and older.


Q: Does Fycampa cause weight gain or weight loss?

Official safety data lists weight gain as a common adverse reaction observed in clinical trials. Decreased appetite has been reported in regulatory documents, although weight gain is the effect listed as common.


Q: Can Fycampa affect my liver function?

Serious adverse reactions, including severe liver injury or Hepatotoxicity, have been reported with Fycampa. Official guidelines advise healthcare providers to closely monitor liver function in patients who have pre-existing hepatic impairment.


Q: Can people with kidney problems use Fycampa?

Official guidance states that Fycampa is not recommended for individuals with severe renal impairment or those undergoing haemodialysis. While no dose adjustment is generally required for mild impairment, official labeling advises caution and close monitoring for patients with moderate kidney impairment.


Q: What are the specific requirements for women who may become pregnant while taking Fycampa?

Women of reproductive potential are advised to use effective contraception during and for a period after treatment. If using hormonal contraceptives that contain levonorgestrel, the official requirement is to use an additional non-hormonal method of contraception, as Fycampa can reduce their effectiveness.


Q: Do you have to take Fycampa with food?

According to the official instructions, Fycampa is administered once daily and can be taken with or without food. This condition gives flexibility in when the medicine is consumed relative to meals.


Q: How does the body process or eliminate Fycampa?

The drug is extensively broken down (metabolized) in the liver, primarily through the CYP3A4 enzyme system. It is then removed from the body mainly through the urine and feces.


Q: What is Fycampa's history or how long has it been available?

Fycampa (perampanel) received initial regulatory approval in the United States in 2012. Since then, regulatory authorities have continuously updated the product information based on ongoing safety and efficacy data.


Q: What happens if Fycampa is stopped suddenly?

Regulatory information indicates that abrupt discontinuation may increase the risk of withdrawal symptoms and may lead to an increase in seizure frequency. Official protocols recommend that the dose be gradually reduced (tapered) when ending treatment.


Q: How does the effectiveness of Fycampa compare to placebo in clinical trials?

Clinical trials showed that patients receiving Fycampa had a greater reduction in seizure frequency compared to those who received a placebo. Specifically, the percentage of patients achieving a 50% or greater reduction in seizures (known as the responder rate) was higher in the Fycampa groups.


Q: Why is Fycampa a controlled substance in the US?

The US classification as a Schedule III controlled substance is based on the potential for abuse and dependence. This potential was determined during studies where supratherapeutic (high) doses produced subjective feelings of euphoria.


Q: Can taking Fycampa affect my mood even if I don't have a history of mental health issues?

Official warnings state that serious psychiatric and behavioral reactions, including aggression, anger, and hostility, have been reported in patients taking Fycampa with and without a prior history of mental health issues. Regulatory documents state that close monitoring for new or worsening mood changes is advised for all patients.


Q: Are there specific warnings for people with certain heart conditions using Fycampa?

Official warnings primarily focus on the liver, kidney, and psychiatric risks. However, clinical trials have sometimes excluded patients with pre-existing heart conditions, particularly those related to a prolonged QTc interval, a factor associated with an increased risk of abnormal heart rhythms.


Q: Is Fycampa used to treat non-epileptic seizures?

The approved uses for Fycampa are restricted to specific types of epileptic seizures—partial-onset and primary generalized tonic-clonic seizures. There is no regulatory documentation supporting its use for non-epileptic seizures.


Q: Does Fycampa interact with common over-the-counter pain relievers?

Official documentation advises caution when Fycampa is used with any other substance that causes sedation due to the potential for compounded depressant effects on the central nervous system (CNS). Caution is advised as this category may include components found in some common over-the-counter pain and cold medicines that possess sedative properties.


Q: Can Fycampa cause confusion or memory problems?

Yes, official adverse reaction data lists memory impairment as a common event observed in clinical trials. Other related cognitive effects, such as disorientation and a confusional state, have also been reported.


Q: What research exists about Fycampa use in older adults?

Official prescribing information includes specific recommendations for use in older adults. For example, dose increases (titration) should occur no more frequently than every two weeks for older adults. This adjustment reflects the specific considerations for use and tolerability needed for this population.

How should Fycampa be stored and disposed of?

Fycompa (perampanel) must be stored and handled according to its specific formulation to preserve its stability.

Formulation Storage Requirements Stability & Handling
Film-coated Tablets Store at controlled room temperature, 68 F to 77 F (20 C to 25 C). Keep in the original container.
Oral Suspension Store at a temperature below 86 F (30 C). Do not freeze. Shake vigorously for at least 5 seconds before each use. Replace cap tightly after opening.

All unused oral suspension must be discarded 90 days after the bottle is first opened. Fycompa, like all medicines, must be kept out of the reach of children. Due to its classification as a controlled substance (CIII), it should be stored in a safe place to protect it from theft. Patients must consult a pharmacist or healthcare professional for guidance on how to dispose of any unused or expired medication.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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