Product Information

ISONIAZID 100 MG TABLET is a generic product labeled by Omnivium Pharmaceuticals LLC, priced at $1.7322 per EA under NDC 81665010710. Its NADAC has been published 32 times since Nov 19, 2025.

ISONIAZID 100 MG TABLET

isoniazid
$1.7322per EA

Strength

100 mg/1

NDC

81665010710

Classification

Generic

Dosage Form

TABLET

Route

ORAL

Last Updated

6/17/2026

Active Ingredients

ISONIAZID

Approval Type

Generic (ANDA)

FDA Application

ANDA040090

On Market Since

10/15/2024

Pharmacological Classes

Price Statistics

The NADAC for ISONIAZID 100 MG TABLET has been published 32 times since Nov 19, 2025, and over the history we have for it it has risen 8.2%. The table below summarizes its recorded NADAC range and movement.

Current price$1.7322 per EA
All-time high$1.7322 (Jun 24, 2026)
All-time low$1.6016 (Nov 19, 2025)
52-week high$1.7322
52-week low$1.6016
Median price$1.6321
Average price$1.6480
Largest weekly change+1.7% (Apr 22, 2026)
Weeks tracked32
Tracking sinceNov 19, 2025

Price History

1W

0.0%

1M

+1.6%

3M

+5.0%

6M

+7.5%

1Y

N/A

3Y

N/A

5Y

N/A

All

+8.2%

Generic Alternatives

The matcher finds 1 NADAC-published product sharing this drug's active ingredient, strength, and dosage form across 1 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.

Lowest-Cost Alternatives

1 alternative • Same active ingredient

Frequently asked questions

What is the NADAC price of ISONIAZID 100 MG TABLET?

The current National Average Drug Acquisition Cost (NADAC) for ISONIAZID 100 MG TABLET, manufactured by Omnivium Pharmaceuticals LLC, is $1.7322 per EA (NDC 81665010710), effective Jun 24, 2026.

How has the price of ISONIAZID 100 MG TABLET changed over time?

Over the history we have for it, the NADAC for ISONIAZID 100 MG TABLET has risen 8.2%. It has been tracked across 32 weekly CMS publications since Nov 19, 2025.

What are the highest and lowest recorded NADAC prices for ISONIAZID 100 MG TABLET?

Since Nov 19, 2025, the NADAC for ISONIAZID 100 MG TABLET has ranged from a low of $1.6016 (Nov 19, 2025) to a high of $1.7322 (Jun 24, 2026), with a median of $1.6321 per EA.

Are there cheaper alternatives to ISONIAZID 100 MG TABLET?

1 NADAC-published product shares the same active ingredient, strength, and dosage form as ISONIAZID 100 MG TABLET, but none are currently priced below it.

Who manufactures ISONIAZID 100 MG TABLET?

ISONIAZID 100 MG TABLET (NDC 81665010710) is labeled by Omnivium Pharmaceuticals LLC, and CMS classifies it as a generic product.