Anti-epileptic Agent
An Established Pharmacologic Class (EPC) in the FDA NDC Directory: the class FDA records for a product in its PHARM_CLASSES field.
In the NADAC file of 2026-10-14
94 products in the NADAC file of 2026-10-14 have an NDC that FDA lists in this class, covering 15 nonproprietary names as FDA writes them. 59 of them have a Medicare figure on OpenBill.
Being in one class means FDA describes the drugs’ pharmacology the same way. It does not mean one can replace another; that is a question for your prescriber.
Prices per unit: CMS NADAC · nadac-national-average-drug-acquisition-cost-20261014.csv · as of 2026-10-14 · retrieved 2026-10-17. Classes: FDA NDC Directory · ndctext.zip · as of 2026-10-16.
The products, with what pharmacies pay per unit
- CELONTIN 300 MG CAPSULE
- DEPAKOTE DR 125 MG SPRINKLE CP
- DEPAKOTE DR 125 MG TABLET
- DEPAKOTE DR 250 MG TABLET
- DEPAKOTE DR 500 MG TABLET
- DEPAKOTE ER 250 MG TABLET
- DEPAKOTE ER 500 MG TABLET
- DILANTIN 100 MG CAPSULE
- DILANTIN 30 MG CAPSULE
- DILANTIN 50 MG INFATAB
- DIVALPROEX DR 125 MG CAP SPRNK
- DIVALPROEX SOD DR 125 MG TAB
- DIVALPROEX SOD DR 250 MG TAB
- DIVALPROEX SOD DR 500 MG TAB
- DIVALPROEX SOD ER 250 MG TAB
- DIVALPROEX SOD ER 500 MG TAB
- ETHOSUXIMIDE 250 MG CAPSULE
- ETHOSUXIMIDE 250 MG/5 ML SOLN
- FELBAMATE 400 MG TABLET
- FELBAMATE 600 MG TABLET
- FELBAMATE 600 MG/5 ML SUSP
- FELBATOL 400 MG TABLET
- FELBATOL 600 MG TABLET
- GABAPENTIN 600 MG TABLET
- GABAPENTIN 800 MG TABLET
- LAMICTAL 100 MG TABLET
- LAMICTAL 150 MG TABLET
- LAMICTAL 200 MG TABLET
- LAMICTAL 25 MG DISPER TABLET
- LAMICTAL 25 MG TABLET
- LAMICTAL ODT 100 MG TABLET
- LAMICTAL ODT 200 MG TABLET
- LAMICTAL ODT 25 MG TABLET
- LAMICTAL ODT 50 MG TABLET
- LAMICTAL XR 100 MG TABLET
- LAMICTAL XR 200 MG TABLET
- LAMICTAL XR 25 MG TABLET
- LAMICTAL XR 250 MG TABLET
- LAMICTAL XR 300 MG TABLET
- LAMICTAL XR 50 MG TABLET
- LAMOTRIGINE 100 MG TABLET
- LAMOTRIGINE 150 MG TABLET
- LAMOTRIGINE 200 MG TABLET
- LAMOTRIGINE 25 MG DISPER TAB
- LAMOTRIGINE 25 MG TABLET
- LAMOTRIGINE 5 MG DISPER TABLET
- LAMOTRIGINE ER 100 MG TABLET
- LAMOTRIGINE ER 200 MG TABLET
- LAMOTRIGINE ER 25 MG TABLET
- LAMOTRIGINE ER 250 MG TABLET
- LAMOTRIGINE ER 300 MG TABLET
- LAMOTRIGINE ER 50 MG TABLET
- LAMOTRIGINE ODT 100 MG TABLET
- LAMOTRIGINE ODT 200 MG TABLET
- LAMOTRIGINE ODT 25 MG TABLET
- LAMOTRIGINE ODT 50 MG TABLET
- OXCARBAZEPINE 150 MG TABLET
- OXCARBAZEPINE 300 MG TABLET
- OXCARBAZEPINE 300 MG/5 ML SUSP
- OXCARBAZEPINE 600 MG TABLET
- OXCARBAZEPINE ER 150 MG TABLET
- OXCARBAZEPINE ER 300 MG TABLET
- OXCARBAZEPINE ER 600 MG TABLET
- OXTELLAR XR 150 MG TABLET
- OXTELLAR XR 300 MG TABLET
- OXTELLAR XR 600 MG TABLET
- PHENYTEK 200 MG CAPSULE
- PHENYTEK 300 MG CAPSULE
- PHENYTOIN 125 MG/5 ML SUSP
- PHENYTOIN 50 MG INFATAB CHEW
- PHENYTOIN 50 MG TABLET CHEW
- PHENYTOIN SOD EXT 100 MG CAP
- PRIMIDONE 125 MG TABLET
- PRIMIDONE 250 MG TABLET
- PRIMIDONE 50 MG TABLET
- SUBVENITE 10 MG/ML SUSPENSION
- SUBVENITE 100 MG TABLET
- SUBVENITE 150 MG TABLET
- SUBVENITE 200 MG TABLET
- SUBVENITE 25 MG TABLET
- TIAGABINE HCL 12 MG TABLET
- TIAGABINE HCL 2 MG TABLET
- TIAGABINE HCL 4 MG TABLET
- TRILEPTAL 150 MG TABLET
- TRILEPTAL 300 MG TABLET
- TRILEPTAL 300 MG/5 ML SUSP
- TRILEPTAL 600 MG TABLET
- VALPROIC ACID 250 MG CAPSULE
- VALPROIC ACID 250 MG/5 ML SOLN
- ZARONTIN 250 MG CAPSULE
- ZONISADE 100 MG/5 ML ORAL SUSP
- ZONISAMIDE 100 MG CAPSULE
- ZONISAMIDE 25 MG CAPSULE
- ZONISAMIDE 50 MG CAPSULE
How to read these prices
OpenBill holds every page to these five rules, written by the project’s owner and quoted word for word:
- A price is a range to expect, never a quote.
- Medicare's price is not your price. Say so on every screen that shows it.
- State which dataset and which effective date produced every figure.
- If a source is stale or a file is empty, show that rather than a zero.
- Disclaimer footer: not medical advice, no warranty, other people's data can be wrong.