PERAMPANEL vs PHENYTOIN

Compare PERAMPANEL (Perampanel) and PHENYTOIN (Phenytoin) — clinical data, side effects, and patient experiences.

PERAMPANEL

Perampanel · Anticonvulsant

How it works

12.1 Mechanism of Action Perampanel is a non-competitive antagonist of the ionotropic α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) glutamate receptor on post-synapti...

Approved for

1 INDICATIONS AND USAGE Perampanel tablets

a non-competitive AMPA glutamate receptor antagonist

OralTablet

PHENYTOIN

Phenytoin, Dilantin · Anticonvulsant

How it works

12.1 Mechanism of Action The precise mechanism by which phenytoin exerts its therapeutic effect has not been established but is thought to involve the voltage-dependent blockade of...

Approved for

1 INDICATIONS AND USAGE Phenytoin chewable tablets are indicated for the treatment of generalized tonic-clonic (grand mal) and complex partial (psychomotor

temporal lobe) seizures and prevention and treatment of seizures occurring during or following neurosurgery. ( 1 )

OralTablet

Quick Comparison

PERAMPANELPHENYTOIN

Drug Class

Anticonvulsant

Route

Oral

Half-Life

—

FDA Approved

—

Side Effect Frequency Comparison

Estimated frequency (%) based on clinical trial data

Side Effects

PERAMPANEL

Drug Not Working

>10%

Drowsiness

1-10%

Dizziness

1-10%

Fatigue

0.1-1%

Condition Worsened

0.1-1%

Falls

0.1-1%

PHENYTOIN

Drug Not Working

>10%

Falls

1-10%

Dizziness

1-10%

Headache

0.1-1%

Nausea

0.1-1%

Fatigue

0.1-1%

Fever

0.1-1%

Rash

0.1-1%

FDA Warnings

PERAMPANEL

5 WARNINGS AND PRECAUTIONS Suicidal Behavior and Ideation: Monitor for suicidal thoughts or behavior ( 5
1 Serious Psychiatric and Behavioral Reactions In the controlled partial-onset seizure clinical trials, hostility- and aggression-related adverse reactions occurred in 12% and 20% of patients randomized to receive perampanel at doses of 8 mg and 12 mg per day, respectively, compared to 6% of patients in the placebo group
Perampanel-treated patients experienced more hostility- and aggression-related adverse reactions that were serious, severe, and led to dose reduction, interruption, and discontinuation more frequently than placebo-treated patients
Some of these events were reported as serious and life-threatening

PHENYTOIN

5 WARNINGS AND PRECAUTIONS • Withdrawal Precipitated Seizure: May precipitate status epilepticus
2 ) • Serious Dermatologic Reactions: Discontinue phenytoin chewable tablets at the first sign of a rash, unless the rash is clearly not drug-related
2 Suicidal Behavior and Ideation Antiepileptic drugs (AEDs), including phenytoin chewable tablets, increase the risk of suicidal thoughts or behavior in patients taking these drugs for any indication
Pooled analyses of 199 placebo-controlled clinical trials (mono- and adjunctive therapy) of 11 different AEDs showed that patients randomized to one of the AEDs had approximately twice the risk (adjusted Relative Risk 1

Clinical Trial Data

No head-to-head clinical studies found for PERAMPANEL vs PHENYTOIN.

PERAMPANEL vs PHENYTOIN: What You Should Know

Key Differences

Both PERAMPANEL and PHENYTOIN belong to the Anticonvulsant class. While they share a similar mechanism of action, differences in pharmacokinetics, dosing, and side effect profiles may make one more suitable than the other for individual patients.

Safety Considerations

PERAMPANEL carries 4 FDA warnings. PHENYTOIN carries 4 FDA warnings. Patients should discuss all warnings and contraindications with their healthcare provider before starting or switching medications..

This comparison is for informational purposes only. Always consult a qualified healthcare professional before making medication decisions.

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PERAMPANEL vs PHENYTOIN

Compare PERAMPANEL (Perampanel) and PHENYTOIN (Phenytoin) — clinical data, side effects, and patient experiences.

PERAMPANEL

Perampanel · Anticonvulsant

How it works

12.1 Mechanism of Action Perampanel is a non-competitive antagonist of the ionotropic α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) glutamate receptor on post-synapti...

Approved for

1 INDICATIONS AND USAGE Perampanel tablets

a non-competitive AMPA glutamate receptor antagonist

OralTablet

PHENYTOIN

Phenytoin, Dilantin · Anticonvulsant

How it works

12.1 Mechanism of Action The precise mechanism by which phenytoin exerts its therapeutic effect has not been established but is thought to involve the voltage-dependent blockade of...

Approved for

1 INDICATIONS AND USAGE Phenytoin chewable tablets are indicated for the treatment of generalized tonic-clonic (grand mal) and complex partial (psychomotor

temporal lobe) seizures and prevention and treatment of seizures occurring during or following neurosurgery. ( 1 )

OralTablet

Quick Comparison

PERAMPANELPHENYTOIN

Drug Class

Anticonvulsant

Route

Oral

Half-Life

—

FDA Approved

—

Side Effect Frequency Comparison

Estimated frequency (%) based on clinical trial data

Side Effects

PERAMPANEL

Drug Not Working

>10%

Drowsiness

1-10%

Dizziness

1-10%

Fatigue

0.1-1%

Condition Worsened

0.1-1%

Falls

0.1-1%

PHENYTOIN

Drug Not Working

>10%

Falls

1-10%

Dizziness

1-10%

Headache

0.1-1%

Nausea

0.1-1%

Fatigue

0.1-1%

Fever

0.1-1%

Rash

0.1-1%

FDA Warnings

PERAMPANEL

5 WARNINGS AND PRECAUTIONS Suicidal Behavior and Ideation: Monitor for suicidal thoughts or behavior ( 5
1 Serious Psychiatric and Behavioral Reactions In the controlled partial-onset seizure clinical trials, hostility- and aggression-related adverse reactions occurred in 12% and 20% of patients randomized to receive perampanel at doses of 8 mg and 12 mg per day, respectively, compared to 6% of patients in the placebo group
Perampanel-treated patients experienced more hostility- and aggression-related adverse reactions that were serious, severe, and led to dose reduction, interruption, and discontinuation more frequently than placebo-treated patients
Some of these events were reported as serious and life-threatening

PHENYTOIN

5 WARNINGS AND PRECAUTIONS • Withdrawal Precipitated Seizure: May precipitate status epilepticus
2 ) • Serious Dermatologic Reactions: Discontinue phenytoin chewable tablets at the first sign of a rash, unless the rash is clearly not drug-related
2 Suicidal Behavior and Ideation Antiepileptic drugs (AEDs), including phenytoin chewable tablets, increase the risk of suicidal thoughts or behavior in patients taking these drugs for any indication
Pooled analyses of 199 placebo-controlled clinical trials (mono- and adjunctive therapy) of 11 different AEDs showed that patients randomized to one of the AEDs had approximately twice the risk (adjusted Relative Risk 1

Clinical Trial Data

No head-to-head clinical studies found for PERAMPANEL vs PHENYTOIN.

PERAMPANEL vs PHENYTOIN: What You Should Know

Key Differences

Safety Considerations

This comparison is for informational purposes only. Always consult a qualified healthcare professional before making medication decisions.