Medication class

Seizures & Nerve Pain

Anticonvulsant and antiepileptic medications also used for nerve pain, including gabapentin, pregabalin, and carbamazepine.

Data updated 2026-05-15

23
Medications
21
With a generic
91%
Avg generic savings
2
In active shortage

Drug class assignments follow the FDA openFDA therapeutic classification, clinical details are drawn from FDA Structured Product Labeling via DailyMed, and unit-price comparisons use CMS National Average Drug Acquisition Cost data. See the full sources below.

Inventory versus report volume

Seizures & Nerve Pain is inventory #12 of 22 (largest of 2 at 23 drugs) ≠ FAERS-volume #6. Nationally Mental Health is inventory #1 of 22 (77 drugs) ≠ Pain Relief FAERS-volume #1 at inventory #3.

#12
inventory
23
tracked drugs
#6
FAERS volume
#1
Pain Relief FAERS nationally

According to FDA FAERS report totals and openFDA class inventory compiled on /methodology. Class size is not the same map as report volume. This page is for informational purposes only and is not medical advice.

This class - generic availability cut

Exclusive DISTINCT-drug split of 23 medicines in Seizures & Nerve Pain. Orthogonal to inventory vs FAERS dual and to the NADAC cost ChartBar.

primidone tops Seizures & Nerve Pain NADAC at $63.00/unit

Top 10 acquisition costs in this class (CMS NADAC)

per unit

What this shows primidone is the costliest in this class at $63.00/unit; generics in the same class run a fraction of that.

Source CMS National Average Drug Acquisition Cost (NADAC)

Seizures & Nerve Pain · #13 inventory of 22 therapeutic classes

9 classes have fewer tracked drugs; percentile 41 among PlainMeds categories.

Seizures & Nerve Pain vs all classes by tracked-drug count

Where this class's inventory sits among every PlainMeds therapeutic category

23 13th of 22 higher than 9 of 22 classes

Classes, banded by tracked-drug inventory

Each bar is a band; taller bars hold more classes. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source PlainMeds openFDA therapeutic-class inventory · 2026-05-15

Seizures & Nerve Pain · top generic-availability (#2 of 22 at 91%)

91% of seizures & nerve pain medications have a generic available, ranking #2 of 22 therapeutic classes (the typical class sits near 74%).

47% (lowest class) 100% (highest class)

Source: CMS NADAC generic-availability flags across all PlainMeds therapeutic classes. The dot is this class; the line is the cross-class median.

brivaracetam

Briviact

Brivaracetam is a medicine used to treat partial-onset seizures.

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cannabidiol

Epidiolex

Epidiolex is a medicine that contains cannabidiol.

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carbamazepine

Tegretol

Carbamazepine is a medicine used to control seizures and treat nerve pain.

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cenobamate

Xcopri

Xcopri is a medicine used to treat partial-onset seizures in adults.

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clobazam

Onfi, Sympazan

Clobazam oral suspension is a medicine used with other medicines to treat seizures caused by Lennox-Gastaut syndrome.

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clonazepam

Klonopin

Clonazepam is a medicine that belongs to the benzodiazepine class.

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ethosuximide

Zarontin

Ethosuximide is a medicine that helps control absence seizures.

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felbamate

Felbatol

Felbamate is a medicine used to treat seizures.

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gabapentin

Neurontin, Gralise

Gabapentin is a medicine that can treat nerve pain and seizures.

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lacosamide

Vimpat

Lacosamide is a medicine that can help control seizures.

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lamotrigine

Lamictal

Lamotrigine is a medicine that can treat seizures and bipolar disorder.

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levetiracetam

Keppra

Levetiracetam is a medicine used to treat seizures.

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perampanel

Fycompa

Perampanel is a medicine used to treat seizures.

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phenobarbital

Luminal

Phenobarbital is a medicine that can help control seizures and calm you down.

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phenytoin

Dilantin

Phenytoin injection is used to treat certain types of seizures.

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pregabalin

Lyrica

Pregabalin (Lyrica) is a medicine that can help manage nerve pain, fibromyalgia, and partial-onset seizures.

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primidone

Mysoline

Primidone is a medicine used to control seizures.

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rufinamide

Banzel

Banzel is a medicine used with other medicines to treat seizures.

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tiagabine

Gabitril

Tiagabine is a medicine used with other medicines to treat partial seizures.

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topiramate

Topamax

Topiramate is a medicine that can help prevent seizures and migraines.

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valproate

Depakote, Depakene

Valproate sodium injection is used when you cannot take valproate pills.

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vigabatrin

Sabril

Vigabatrin (Sabril) is a medicine used to treat certain types of seizures in adults and children.

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zonisamide

Zonegran

Zonisamide is a medicine used with other medicines to treat partial seizures in adults with epilepsy.

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Compare brivaracetam vs cannabidiol side-by-side →

Seizures & Nerve Pain · top generic-availability class (#2 of 22)

Seizures & Nerve Pain is inventory #12 of 22 (largest of 2 at 23 drugs) ≠ FAERS-volume #6. Nationally Mental Health is inventory #1 of 22 (77 drugs) ≠ Pain Relief FAERS-volume #1 at inventory #3. 23 medicines tracked; 21 carry a NADAC generic flag; 2 in active FDA shortage.

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Classes nearest Seizures & Nerve Pain by inventory size

Vitamins & Supplements 23 Cholesterol 22 Eye Care 21 Allergies 19 Urinary 18 Blood Thinners 16 Heart 31 Hormones 34

Read our methodology - how this data is sourced, computed, and verified.