Product Information
PHENYTOIN 50 MG INFATAB CHEW is a generic product labeled by Prasco Laboratories, priced at $0.2012 per EA under NDC 66993037202. Its NADAC has been published 248 times since Jan 5, 2022.
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
50 mg/1
Manufacturer
Prasco LaboratoriesNDC
66993037202
Classification
Generic
Dosage Form
TABLET, CHEWABLE
Route
ORAL
Effective Date
9/23/2026
Active Ingredients
PHENYTOINApproval Type
Generic (ANDA)
FDA Application
ANDA084427FDA Approved
Before 1982
TE Code
AB
On Market Since
11/23/2021
Pharmacological Classes
Price Statistics
The NADAC for PHENYTOIN 50 MG INFATAB CHEW has been published 248 times since Jan 5, 2022, and over the history we have for it it has declined 32.2%. The table below summarizes its recorded NADAC range and movement.
| Current price | $0.2012 per EA |
|---|---|
| All-time high | $0.3090 (Aug 10, 2022) |
| All-time low | $0.1761 (Apr 17, 2024) |
| 52-week high | $0.2128 |
| 52-week low | $0.1793 |
| Median price | $0.2264 |
| Average price | $0.2251 |
| Largest weekly change | +30.3% (Jul 20, 2022) |
| Weeks tracked | 248 |
| Tracking since | Jan 5, 2022 |
Generic Alternatives
The matcher finds 5 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
Continue researching this drug
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Manufacturer
Prasco Laboratories manufacturer profile
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Drug market
Phenytoin market comparison
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Therapeutic class
Anti-epileptic Agent class view
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Trend hub
Latest market trends
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Guide
Understanding NADAC pricing
Use the explainer when you need context on how CMS publishes NADAC and how to interpret the number on this page.
Frequently asked questions
What is the NADAC price of PHENYTOIN 50 MG INFATAB CHEW?
The current National Average Drug Acquisition Cost (NADAC) for PHENYTOIN 50 MG INFATAB CHEW, manufactured by Prasco Laboratories, is $0.2012 per EA (NDC 66993037202), effective Sep 30, 2026.
How has the price of PHENYTOIN 50 MG INFATAB CHEW changed over time?
Over the history we have for it, the NADAC for PHENYTOIN 50 MG INFATAB CHEW has declined 32.2%. It has been tracked across 248 weekly CMS publications since Jan 5, 2022.
What are the highest and lowest recorded NADAC prices for PHENYTOIN 50 MG INFATAB CHEW?
Since Jan 5, 2022, the NADAC for PHENYTOIN 50 MG INFATAB CHEW has ranged from a low of $0.1761 (Apr 17, 2024) to a high of $0.3090 (Aug 10, 2022), with a median of $0.2264 per EA.
Are there cheaper alternatives to PHENYTOIN 50 MG INFATAB CHEW?
5 manufacturers publish a NADAC-priced product with the same active ingredient and strength as PHENYTOIN 50 MG INFATAB CHEW in a comparable dosage form, but none are currently priced below it.
Who manufactures PHENYTOIN 50 MG INFATAB CHEW?
PHENYTOIN 50 MG INFATAB CHEW (NDC 66993037202) is labeled by Prasco Laboratories, and CMS classifies it as a generic product.