Product Information
DILANTIN 100 MG CAPSULE is a brand (anda) product labeled by Viatris Specialty LLC, priced at $1.7387 per EA under NDC 58151011001. Its NADAC has been published 80 times since Feb 12, 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
58151011001
Classification
Brand (ANDA)
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 80 times since Feb 12, 2025, and over the history we have for it it has risen 799.1%. The table below summarizes its recorded NADAC range and movement.
| Current price | $1.7387 per EA |
|---|---|
| All-time high | $1.7420 (May 13, 2026) |
| All-time low | $0.1571 (Feb 19, 2025) |
| 52-week high | $1.7420 |
| 52-week low | $1.6576 |
| Median price | $1.6607 |
| Average price | $1.5993 |
| Largest weekly change | +957.0% (Mar 19, 2025) |
| Weeks tracked | 80 |
| Tracking since | Feb 12, 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). Switching to the cheapest would cut per-unit acquisition cost by roughly 92% at current NADAC. 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 $1.7387 per EA (NDC 58151011001), 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 risen 799.1%. It has been tracked across 80 weekly CMS publications since Feb 12, 2025.
What are the highest and lowest recorded NADAC prices for DILANTIN 100 MG CAPSULE?
Since Feb 12, 2025, the NADAC for DILANTIN 100 MG CAPSULE has ranged from a low of $0.1571 (Feb 19, 2025) to a high of $1.7420 (May 13, 2026), with a median of $1.6607 per EA.
Are there cheaper alternatives to DILANTIN 100 MG CAPSULE?
Yes. 2 manufacturers publish a NADAC-priced product with the same active ingredient and strength in a comparable dosage form. The lowest-priced option, DILANTIN 100 MG CAPSULE, is $0.1471 per EA — about 92% below DILANTIN 100 MG CAPSULE.
Who manufactures DILANTIN 100 MG CAPSULE?
DILANTIN 100 MG CAPSULE (NDC 58151011001) is labeled by Viatris Specialty LLC, and CMS classifies it as a brand (anda) product.