Product Information
DISULFIRAM 500 MG TABLET is a generic product labeled by Sigmapharm Laboratories LLC, priced at $13.3143 per EA under NDC 42794002908. Its NADAC has been published 79 times since Feb 19, 2025.
FDA first approved this application on Mar 28, 2011. Its Orange Book therapeutic-equivalence code is AB — FDA rates it therapeutically equivalent to (substitutable for) its reference product.
Strength
500 mg/1
Manufacturer
Sigmapharm Laboratories LLCNDC
42794002908
Classification
Generic
Dosage Form
TABLET
Route
ORAL
Effective Date
8/19/2026
Active Ingredients
DISULFIRAMApproval Type
Generic (ANDA)
FDA Application
ANDA091619FDA Approved
3/28/2011
TE Code
AB
On Market Since
1/11/2022
Pharmacological Classes
Price Statistics
The NADAC for DISULFIRAM 500 MG TABLET has been published 79 times since Feb 19, 2025, 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 | $13.3143 per EA |
|---|---|
| All-time high | $13.3156 (Jan 14, 2026) |
| All-time low | $13.3143 (Feb 19, 2025) |
| 52-week high | $13.3156 |
| 52-week low | $13.3143 |
| Median price | $13.3149 |
| Average price | $13.3149 |
| Largest weekly change | -0.0% (Mar 18, 2026) |
| Weeks tracked | 79 |
| Tracking since | Feb 19, 2025 |
Generic Alternatives
The matcher finds 1 manufacturer 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 DISULFIRAM 500 MG TABLET?
The current National Average Drug Acquisition Cost (NADAC) for DISULFIRAM 500 MG TABLET, manufactured by Sigmapharm Laboratories LLC, is $13.3143 per EA (NDC 42794002908), effective Aug 19, 2026.
How has the price of DISULFIRAM 500 MG TABLET changed over time?
Over the history we have for it, the NADAC for DISULFIRAM 500 MG TABLET has held within roughly two percent of its current level. It has been tracked across 79 weekly CMS publications since Feb 19, 2025.
What are the highest and lowest recorded NADAC prices for DISULFIRAM 500 MG TABLET?
Since Feb 19, 2025, the NADAC for DISULFIRAM 500 MG TABLET has ranged from a low of $13.3143 (Feb 19, 2025) to a high of $13.3156 (Jan 14, 2026), with a median of $13.3149 per EA.
Are there cheaper alternatives to DISULFIRAM 500 MG TABLET?
1 manufacturer publishes a NADAC-priced product with the same active ingredient and strength as DISULFIRAM 500 MG TABLET in a comparable dosage form, but none are currently priced below it.
Who manufactures DISULFIRAM 500 MG TABLET?
DISULFIRAM 500 MG TABLET (NDC 42794002908) is labeled by Sigmapharm Laboratories LLC, and CMS classifies it as a generic product.