Product Information
DIVALPROEX SOD ER 500 MG TAB is a generic product labeled by Camber Pharmaceuticals Inc., priced at $0.1943 per EA under NDC 31722002201. Its NADAC has been published 109 times since Sep 4, 2024.
FDA first approved this application on Sep 26, 2023. Its Orange Book therapeutic-equivalence code is AB — FDA rates it therapeutically equivalent to (substitutable for) its reference product.
Strength
500 mg/1
Manufacturer
Camber Pharmaceuticals Inc.NDC
31722002201
Classification
Generic
Dosage Form
TABLET, FILM COATED, EXTENDED RELEASE
Route
ORAL
Effective Date
9/23/2026
Active Ingredients
DIVALPROEX SODIUMApproval Type
Generic (ANDA)
FDA Application
ANDA215527FDA Approved
9/26/2023
TE Code
AB
On Market Since
9/26/2023
Pharmacological Classes
Price Statistics
The NADAC for DIVALPROEX SOD ER 500 MG TAB has been published 109 times since Sep 4, 2024, and over the history we have for it it has held within roughly two percent of its current level. The table below summarizes its recorded NADAC range and movement.
| Current price | $0.1943 per EA |
|---|---|
| All-time high | $0.2015 (Jul 16, 2025) |
| All-time low | $0.1508 (Nov 20, 2024) |
| 52-week high | $0.1943 |
| 52-week low | $0.1679 |
| Median price | $0.1854 |
| Average price | $0.1838 |
| Largest weekly change | -24.0% (Nov 20, 2024) |
| Weeks tracked | 109 |
| Tracking since | Sep 4, 2024 |
Generic Alternatives
The matcher finds 4 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
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Manufacturer
Camber Pharmaceuticals Inc. manufacturer profile
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Drug market
Divalproex sodium 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 DIVALPROEX SOD ER 500 MG TAB?
The current National Average Drug Acquisition Cost (NADAC) for DIVALPROEX SOD ER 500 MG TAB, manufactured by Camber Pharmaceuticals Inc., is $0.1943 per EA (NDC 31722002201), effective Sep 30, 2026.
How has the price of DIVALPROEX SOD ER 500 MG TAB changed over time?
Over the history we have for it, the NADAC for DIVALPROEX SOD ER 500 MG TAB has held within roughly two percent of its current level. It has been tracked across 109 weekly CMS publications since Sep 4, 2024.
What are the highest and lowest recorded NADAC prices for DIVALPROEX SOD ER 500 MG TAB?
Since Sep 4, 2024, the NADAC for DIVALPROEX SOD ER 500 MG TAB has ranged from a low of $0.1508 (Nov 20, 2024) to a high of $0.2015 (Jul 16, 2025), with a median of $0.1854 per EA.
Are there cheaper alternatives to DIVALPROEX SOD ER 500 MG TAB?
4 manufacturers publish a NADAC-priced product with the same active ingredient and strength as DIVALPROEX SOD ER 500 MG TAB in a comparable dosage form, but none are currently priced below it.
Who manufactures DIVALPROEX SOD ER 500 MG TAB?
DIVALPROEX SOD ER 500 MG TAB (NDC 31722002201) is labeled by Camber Pharmaceuticals Inc., and CMS classifies it as a generic product.