Product Information
DILANTIN 100 MG CAPSULE is a generic product labeled by Viatris Specialty LLC, priced at $0.1471 per EA under NDC 58151011010. Its NADAC has been published 63 times since Jun 11, 2025.
FDA first approved this application before 1982. Its Orange Book therapeutic-equivalence code is AB — FDA rates it therapeutically equivalent to (substitutable for) its reference product.
Strength
100 mg/1
Manufacturer
Viatris Specialty LLCNDC
58151011010
Classification
Generic
Dosage Form
CAPSULE, EXTENDED RELEASE
Route
ORAL
Effective Date
8/19/2026
Active Ingredients
PHENYTOIN SODIUMApproval Type
Generic (ANDA)
FDA Application
ANDA084349FDA Approved
Before 1982
TE Code
AB
On Market Since
12/6/2024
Pharmacological Classes
Price Statistics
The NADAC for DILANTIN 100 MG CAPSULE has been published 63 times since Jun 11, 2025, and over the history we have for it it has declined 10.9%. The table below summarizes its recorded NADAC range and movement.
| Current price | $0.1471 per EA |
|---|---|
| All-time high | $0.1700 (Jul 16, 2025) |
| All-time low | $0.1392 (Mar 18, 2026) |
| 52-week high | $0.1580 |
| 52-week low | $0.1392 |
| Median price | $0.1435 |
| Average price | $0.1486 |
| Largest weekly change | -6.0% (Oct 22, 2025) |
| Weeks tracked | 63 |
| Tracking since | Jun 11, 2025 |
Generic Alternatives
The matcher finds 2 manufacturers offering a NADAC-published product with this drug's active ingredient and strength in a comparable dosage form (cheapest from each manufacturer, up to 10 shown below). None of the shown alternatives sit below the current price. These are candidates to verify clinically, not guaranteed substitutes — see our generic drug prices guide.
Related Drugs
Same classification
Frequently asked questions
What is the NADAC price of DILANTIN 100 MG CAPSULE?
The current National Average Drug Acquisition Cost (NADAC) for DILANTIN 100 MG CAPSULE, manufactured by Viatris Specialty LLC, is $0.1471 per EA (NDC 58151011010), effective Aug 19, 2026.
How has the price of DILANTIN 100 MG CAPSULE changed over time?
Over the history we have for it, the NADAC for DILANTIN 100 MG CAPSULE has declined 10.9%. It has been tracked across 63 weekly CMS publications since Jun 11, 2025.
What are the highest and lowest recorded NADAC prices for DILANTIN 100 MG CAPSULE?
Since Jun 11, 2025, the NADAC for DILANTIN 100 MG CAPSULE has ranged from a low of $0.1392 (Mar 18, 2026) to a high of $0.1700 (Jul 16, 2025), with a median of $0.1435 per EA.
Are there cheaper alternatives to DILANTIN 100 MG CAPSULE?
2 manufacturers publish a NADAC-priced product with the same active ingredient and strength as DILANTIN 100 MG CAPSULE in a comparable dosage form, but none are currently priced below it.
Who manufactures DILANTIN 100 MG CAPSULE?
DILANTIN 100 MG CAPSULE (NDC 58151011010) is labeled by Viatris Specialty LLC, and CMS classifies it as a generic product.