Product Information
ISONIAZID 300 MG TABLET is a generic product labeled by Teva Pharmaceuticals USA Inc., priced at $3.4133 per EA under NDC 00555007102. Its NADAC has been published 642 times since Nov 28, 2013.
Strength
300 mg/1
Manufacturer
Teva Pharmaceuticals USA Inc.NDC
00555007102
Classification
Generic
Dosage Form
TABLET
Route
ORAL
Last Updated
6/17/2026
Active Ingredients
ISONIAZIDApproval Type
Generic (ANDA)
FDA Application
ANDA080937On Market Since
9/1/1972
Pharmacological Classes
Price Statistics
The NADAC for ISONIAZID 300 MG TABLET has been published 642 times since Nov 28, 2013, and over the history we have for it it has risen 2039.2%. The table below summarizes its recorded NADAC range and movement.
| Current price | $3.4133 per EA |
|---|---|
| All-time high | $3.4133 (Jun 24, 2026) |
| All-time low | $0.1291 (Jan 17, 2018) |
| 52-week high | $3.4133 |
| 52-week low | $2.6149 |
| Median price | $0.1870 |
| Average price | $0.4474 |
| Largest weekly change | +1311.5% (May 21, 2025) |
| Weeks tracked | 642 |
| Tracking since | Nov 28, 2013 |
Generic Alternatives
The matcher finds 4 NADAC-published products sharing this drug's active ingredient, strength, and dosage form across 4 manufacturers (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.
Frequently asked questions
What is the NADAC price of ISONIAZID 300 MG TABLET?
The current National Average Drug Acquisition Cost (NADAC) for ISONIAZID 300 MG TABLET, manufactured by Teva Pharmaceuticals USA Inc., is $3.4133 per EA (NDC 00555007102), effective Jun 24, 2026.
How has the price of ISONIAZID 300 MG TABLET changed over time?
Over the history we have for it, the NADAC for ISONIAZID 300 MG TABLET has risen 2039.2%. It has been tracked across 642 weekly CMS publications since Nov 28, 2013.
What are the highest and lowest recorded NADAC prices for ISONIAZID 300 MG TABLET?
Since Nov 28, 2013, the NADAC for ISONIAZID 300 MG TABLET has ranged from a low of $0.1291 (Jan 17, 2018) to a high of $3.4133 (Jun 24, 2026), with a median of $0.1870 per EA.
Are there cheaper alternatives to ISONIAZID 300 MG TABLET?
4 NADAC-published products share the same active ingredient, strength, and dosage form as ISONIAZID 300 MG TABLET, but none are currently priced below it.
Who manufactures ISONIAZID 300 MG TABLET?
ISONIAZID 300 MG TABLET (NDC 00555007102) is labeled by Teva Pharmaceuticals USA Inc., and CMS classifies it as a generic product.
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