Product Information
PRIMIDONE 250 MG TABLET is a generic product labeled by Oxford Pharmaceuticals, LLC, priced at $0.2276 per EA under NDC 69584068550. Its NADAC has been published 291 times since Mar 10, 2021.
FDA first approved this application on Feb 24, 2005. Its Orange Book therapeutic-equivalence code is AB — FDA rates it therapeutically equivalent to (substitutable for) its reference product.
Strength
250 mg/1
Manufacturer
Oxford Pharmaceuticals, LLCNDC
69584068550
Classification
Generic
Dosage Form
TABLET
Route
ORAL
Effective Date
9/23/2026
Active Ingredients
PRIMIDONEApproval Type
Generic (ANDA)
FDA Application
ANDA040586FDA Approved
2/24/2005
TE Code
AB
On Market Since
2/22/2021
Pharmacological Classes
Price Statistics
The NADAC for PRIMIDONE 250 MG TABLET has been published 291 times since Mar 10, 2021, and over the history we have for it it has declined 24.5%. The table below summarizes its recorded NADAC range and movement.
| Current price | $0.2276 per EA |
|---|---|
| All-time high | $0.3204 (Jul 13, 2022) |
| All-time low | $0.1915 (Nov 20, 2024) |
| 52-week high | $0.2672 |
| 52-week low | $0.2197 |
| Median price | $0.2856 |
| Average price | $0.2771 |
| Largest weekly change | +31.2% (Aug 21, 2024) |
| Weeks tracked | 291 |
| Tracking since | Mar 10, 2021 |
Generic Alternatives
The matcher finds 11 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 8% at current NADAC. 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
Oxford Pharmaceuticals, LLC manufacturer profile
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Drug market
Primidone 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 PRIMIDONE 250 MG TABLET?
The current National Average Drug Acquisition Cost (NADAC) for PRIMIDONE 250 MG TABLET, manufactured by Oxford Pharmaceuticals, LLC, is $0.2276 per EA (NDC 69584068550), effective Sep 30, 2026.
How has the price of PRIMIDONE 250 MG TABLET changed over time?
Over the history we have for it, the NADAC for PRIMIDONE 250 MG TABLET has declined 24.5%. It has been tracked across 291 weekly CMS publications since Mar 10, 2021.
What are the highest and lowest recorded NADAC prices for PRIMIDONE 250 MG TABLET?
Since Mar 10, 2021, the NADAC for PRIMIDONE 250 MG TABLET has ranged from a low of $0.1915 (Nov 20, 2024) to a high of $0.3204 (Jul 13, 2022), with a median of $0.2856 per EA.
Are there cheaper alternatives to PRIMIDONE 250 MG TABLET?
Yes. 11 manufacturers publish a NADAC-priced product with the same active ingredient and strength in a comparable dosage form. The lowest-priced option, PRIMIDONE 250 MG TABLET, is $0.2102 per EA — about 8% below PRIMIDONE 250 MG TABLET.
Who manufactures PRIMIDONE 250 MG TABLET?
PRIMIDONE 250 MG TABLET (NDC 69584068550) is labeled by Oxford Pharmaceuticals, LLC, and CMS classifies it as a generic product.