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ISONIAZID

ANDA

ISONIAZID | A040090 | OMNIVIUM PHARMACEUTICALS LLC

2 strengths0 unique patents0 unique exclusivities

Drug Pricing (NADAC)

National Average Drug Acquisition Cost — Week of 2026-07-15 | 3 NDCs

Highest NADAC/Unit

$3.41

per ea

Lowest NADAC/Unit

$1.73

per ea

Brand NDCs

Generic NDCs

NDC Description	NADAC/Unit	Unit	Type	Generic NADAC	Effective
81665010810ISONIAZID 300 MG TABLET	$3.41	EA	Generic	—	2026-06-17
81665010830ISONIAZID 300 MG TABLET	$3.41	EA	Generic	—	2026-06-17
81665010710ISONIAZID 100 MG TABLET	$1.73	EA	Generic	—	2026-06-17

Source: NADAC (data.medicaid.gov). Prices reflect national average acquisition costs for retail community pharmacies.

VA Federal Supply Schedule

Government-negotiated contract prices | 3 NDCs (3 FSS)

Lowest Price

$144.99

Highest Price

$404.99

FSS NDCs

Big4 NDCs

Description	Price	Type	Vendor	Contract End
10135-0804-01ISONIAZID 100MG TAB	$246.25	FSS	Marlex Pharmaceuticals, Inc.	01/31/2030
10135-0805-01ISONIAZID 300MG TAB	$404.99	FSS	Marlex Pharmaceuticals, Inc.	01/31/2030
10135-0805-30ISONIAZID 300MG TAB	$144.99	FSS	Marlex Pharmaceuticals, Inc.	01/31/2030

Source: VA Federal Supply Schedule (va.gov). Prices are government-negotiated contract prices.

API Supply Chain4 active DMFs2 inactive

4 active API suppliers hold Drug Master Files for this ingredient.

YUKI GOSEI KOGYO CO LTDISONIAZID BULK FORM

DMF 47721982

YANGZHOU PHARMACEUTICAL CO LTDISONIAZID

DMF 162352002

CALYX CHEMICALS AND PHARMACEUTICALS LTDISONIAZID

DMF 213222008

CHONGQING HUAPONT SHENGCHEM PHARMACEUTICAL CO LTDISONIAZID

DMF 432422026

BAYER CORPInactiveISONIAZID (NEOTEBEN)

DMF 58901985

BEIJING SECOND PHARMACEUTICAL FACTORYInactiveISONIAZID USP23

DMF 146622000

Source: FDA Drug Master Files (fda.gov). Type II API DMFs matched by ingredient.

Products (2)

Sort:

#001 — 100MG

0 patents0 exclusivities▴

TABLET;ORAL | Approved: Jun 26, 1997

No patent or exclusivity listings for this strength.

#002 — 300MG

0 patents0 exclusivities▾

TABLET;ORAL | Approved: Jun 26, 1997