acetazolamide

Product NDC: 51655-331
11-digit product format: 516550331
Labeler code: 51655
Product ID: 51655-331_48eb115f-7702-67c8-e063-6394a90a98a3
Type: HUMAN PRESCRIPTION DRUG
Nonproprietary name: acetazolamide
Dosage form: TABLET
Route: ORAL
Labeler: Northwind Health Company, LLC
Application: ANDA205530
Marketing category: ANDA
Marketing start: 2023-03-28
Substance: ACETAZOLAMIDE
Active strength: 125 mg/1
Pharmacologic classes: Carbonic Anhydrase Inhibitor [EPC], Carbonic Anhydrase Inhibitors [MoA], Sulfonamides [CS]
NDC exclude flag: No
Listing certified through: 2027-12-31
Current FDA listing: Yes

Source provenance: Browse the complete Orange Book source catalog · source snapshot 1.

Orange Book products#

Current product rows page 1 of 1 · 2 matching rows.

Application-product, Trade name, Ingredient table
Application-product	Trade name	Ingredient	Strength	Dosage form / route	TE codes	RLD / RS	Approval date
A205530-001	ACETAZOLAMIDE	ACETAZOLAMIDE	125MG	TABLET / ORAL	AB		2016-10-27
A205530-002	ACETAZOLAMIDE	ACETAZOLAMIDE	250MG	TABLET / ORAL	AB		2016-10-27

Therapeutic equivalence codes#

Current TE-code rows page 1 of 1 · 2 matching rows.

Application-product, TE code table
Application-product	TE code
A205530-001	AB
A205530-002	AB

Observed Orange Book product history#

Observed FDA ZIP history: Each table is queried independently by exact application/product key from successfully parsed Orange Book snapshots. Capture times identify archived source observations; absence or a change between snapshots is not inferred. FDA publication files that were not recoverable as structured ZIP data are not represented as states.

Product history page 1 of 3 · 82 observed states.

Captured, Edition, Application-product table
Captured	Edition	Application-product	Trade name	Strength	Dosage form / route	Product TE source text	Approval date	Source SHA-256
2026-02-19 14:30 UTC	2026-02	A205530-001	ACETAZOLAMIDE	125MG	TABLET / ORAL	AB	2016-10-27	`011fe1cb6892…`
2026-02-19 14:30 UTC	2026-02	A205530-002	ACETAZOLAMIDE	250MG	TABLET / ORAL	AB	2016-10-27	`011fe1cb6892…`
2025-12-14 10:44 UTC · 2 captures of this ZIP	2025-12	A205530-001	ACETAZOLAMIDE	125MG	TABLET / ORAL	AB	2016-10-27	`31067a03dcf5…`
2025-12-14 10:44 UTC · 2 captures of this ZIP	2025-12	A205530-002	ACETAZOLAMIDE	250MG	TABLET / ORAL	AB	2016-10-27	`31067a03dcf5…`
2025-08-23 18:47 UTC	2025-08	A205530-001	ACETAZOLAMIDE	125MG	TABLET / ORAL	AB	2016-10-27	`6a471c1ec25d…`
2025-08-23 18:47 UTC	2025-08	A205530-002	ACETAZOLAMIDE	250MG	TABLET / ORAL	AB	2016-10-27	`6a471c1ec25d…`
2025-03-22 03:13 UTC · 3 captures of this ZIP	2025-03	A205530-001	ACETAZOLAMIDE	125MG	TABLET / ORAL	AB	2016-10-27	`fd3edfee7708…`
2025-03-22 03:13 UTC · 3 captures of this ZIP	2025-03	A205530-002	ACETAZOLAMIDE	250MG	TABLET / ORAL	AB	2016-10-27	`fd3edfee7708…`
2025-02-26 10:13 UTC · 3 captures of this ZIP	2025-02	A205530-001	ACETAZOLAMIDE	125MG	TABLET / ORAL	AB	2016-10-27	`b8a1b40f171c…`
2025-02-26 10:13 UTC · 3 captures of this ZIP	2025-02	A205530-002	ACETAZOLAMIDE	250MG	TABLET / ORAL	AB	2016-10-27	`b8a1b40f171c…`
2025-01-19 17:59 UTC · 7 captures of this ZIP	2025-01	A205530-001	ACETAZOLAMIDE	125MG	TABLET / ORAL	AB	2016-10-27	`03ed91905a0d…`
2025-01-19 17:59 UTC · 7 captures of this ZIP	2025-01	A205530-002	ACETAZOLAMIDE	250MG	TABLET / ORAL	AB	2016-10-27	`03ed91905a0d…`
2024-12-13 21:23 UTC · 2 captures of this ZIP	2024-12	A205530-001	ACETAZOLAMIDE	125MG	TABLET / ORAL	AB	2016-10-27	`2680178bc6a6…`
2024-12-13 21:23 UTC · 2 captures of this ZIP	2024-12	A205530-002	ACETAZOLAMIDE	250MG	TABLET / ORAL	AB	2016-10-27	`2680178bc6a6…`
2024-09-14 05:58 UTC · 2 captures of this ZIP	2024-09	A205530-001	ACETAZOLAMIDE	125MG	TABLET / ORAL	AB	2016-10-27	`5bbf6a4d5a75…`
2024-09-14 05:58 UTC · 2 captures of this ZIP	2024-09	A205530-002	ACETAZOLAMIDE	250MG	TABLET / ORAL	AB	2016-10-27	`5bbf6a4d5a75…`
2024-11-08 22:44 UTC · 3 captures of this ZIP	2024-11	A205530-001	ACETAZOLAMIDE	125MG	TABLET / ORAL	AB	2016-10-27	`d8e5a09893c0…`
2024-11-08 22:44 UTC · 3 captures of this ZIP	2024-11	A205530-002	ACETAZOLAMIDE	250MG	TABLET / ORAL	AB	2016-10-27	`d8e5a09893c0…`
2024-10-29 15:01 UTC	2024-10	A205530-001	ACETAZOLAMIDE	125MG	TABLET / ORAL	AB	2016-10-27	`d06236e962d9…`
2024-10-29 15:01 UTC	2024-10	A205530-002	ACETAZOLAMIDE	250MG	TABLET / ORAL	AB	2016-10-27	`d06236e962d9…`
2024-08-13 05:28 UTC · 3 captures of this ZIP	2024-08	A205530-001	ACETAZOLAMIDE	125MG	TABLET / ORAL	AB	2016-10-27	`79d66fd596c7…`
2024-08-13 05:28 UTC · 3 captures of this ZIP	2024-08	A205530-002	ACETAZOLAMIDE	250MG	TABLET / ORAL	AB	2016-10-27	`79d66fd596c7…`
2024-07-13 05:37 UTC · 2 captures of this ZIP	2024-07	A205530-001	ACETAZOLAMIDE	125MG	TABLET / ORAL	AB	2016-10-27	`301d65b070ca…`
2024-07-13 05:37 UTC · 2 captures of this ZIP	2024-07	A205530-002	ACETAZOLAMIDE	250MG	TABLET / ORAL	AB	2016-10-27	`301d65b070ca…`
2024-06-18 03:08 UTC · 5 captures of this ZIP	2024-06	A205530-001	ACETAZOLAMIDE	125MG	TABLET / ORAL	AB	2016-10-27	`1e350fbaab3a…`
2024-06-18 03:08 UTC · 5 captures of this ZIP	2024-06	A205530-002	ACETAZOLAMIDE	250MG	TABLET / ORAL	AB	2016-10-27	`1e350fbaab3a…`
2024-05-31 18:47 UTC	2024-05	A205530-001	ACETAZOLAMIDE	125MG	TABLET / ORAL	AB	2016-10-27	`8072bd15b7f6…`
2024-05-31 18:47 UTC	2024-05	A205530-002	ACETAZOLAMIDE	250MG	TABLET / ORAL	AB	2016-10-27	`8072bd15b7f6…`
2022-06-29 02:47 UTC · 2 captures of this ZIP	2022-06	A205530-001	ACETAZOLAMIDE	125MG	TABLET / ORAL	AB	2016-10-27	`5c6f7cd8ea54…`
2022-06-29 02:47 UTC · 2 captures of this ZIP	2022-06	A205530-002	ACETAZOLAMIDE	250MG	TABLET / ORAL	AB	2016-10-27	`5c6f7cd8ea54…`
2022-04-08 23:34 UTC	2022-04	A205530-001	ACETAZOLAMIDE	125MG	TABLET / ORAL	AB	2016-10-27	`5d02ea3f76ae…`
2022-04-08 23:34 UTC	2022-04	A205530-002	ACETAZOLAMIDE	250MG	TABLET / ORAL	AB	2016-10-27	`5d02ea3f76ae…`
2022-04-04 05:41 UTC	2022-04	A205530-001	ACETAZOLAMIDE	125MG	TABLET / ORAL	AB	2016-10-27	`4b0b4de00fa7…`
2022-04-04 05:41 UTC	2022-04	A205530-002	ACETAZOLAMIDE	250MG	TABLET / ORAL	AB	2016-10-27	`4b0b4de00fa7…`
2019-12-13 00:20 UTC	2019-12	A205530-001	ACETAZOLAMIDE	125MG	TABLET / ORAL	AB	2016-10-27	`74a2ff9319b5…`
2019-12-13 00:20 UTC	2019-12	A205530-002	ACETAZOLAMIDE	250MG	TABLET / ORAL	AB	2016-10-27	`74a2ff9319b5…`
2022-03-09 01:35 UTC	2022-03	A205530-001	ACETAZOLAMIDE	125MG	TABLET / ORAL	AB	2016-10-27	`bb7c543d1eb4…`
2022-03-09 01:35 UTC	2022-03	A205530-002	ACETAZOLAMIDE	250MG	TABLET / ORAL	AB	2016-10-27	`bb7c543d1eb4…`
2021-12-28 21:50 UTC	2021-12	A205530-001	ACETAZOLAMIDE	125MG	TABLET / ORAL	AB	2016-10-27	`782e0a99824c…`
2021-12-28 21:50 UTC	2021-12	A205530-002	ACETAZOLAMIDE	250MG	TABLET / ORAL	AB	2016-10-27	`782e0a99824c…`

Observed Orange Book normalized TE history#

Normalized TE history page 1 of 3 · 82 observed states.

Captured, Edition, Application-product table
Captured	Edition	Application-product	TE code	Order	Source SHA-256
2026-02-19 14:30 UTC	2026-02	A205530-001	AB	1	`011fe1cb6892…`
2026-02-19 14:30 UTC	2026-02	A205530-002	AB	1	`011fe1cb6892…`
2025-12-14 10:44 UTC · 2 captures of this ZIP	2025-12	A205530-001	AB	1	`31067a03dcf5…`
2025-12-14 10:44 UTC · 2 captures of this ZIP	2025-12	A205530-002	AB	1	`31067a03dcf5…`
2025-08-23 18:47 UTC	2025-08	A205530-001	AB	1	`6a471c1ec25d…`
2025-08-23 18:47 UTC	2025-08	A205530-002	AB	1	`6a471c1ec25d…`
2025-03-22 03:13 UTC · 3 captures of this ZIP	2025-03	A205530-001	AB	1	`fd3edfee7708…`
2025-03-22 03:13 UTC · 3 captures of this ZIP	2025-03	A205530-002	AB	1	`fd3edfee7708…`
2025-02-26 10:13 UTC · 3 captures of this ZIP	2025-02	A205530-001	AB	1	`b8a1b40f171c…`
2025-02-26 10:13 UTC · 3 captures of this ZIP	2025-02	A205530-002	AB	1	`b8a1b40f171c…`
2025-01-19 17:59 UTC · 7 captures of this ZIP	2025-01	A205530-001	AB	1	`03ed91905a0d…`
2025-01-19 17:59 UTC · 7 captures of this ZIP	2025-01	A205530-002	AB	1	`03ed91905a0d…`
2024-12-13 21:23 UTC · 2 captures of this ZIP	2024-12	A205530-001	AB	1	`2680178bc6a6…`
2024-12-13 21:23 UTC · 2 captures of this ZIP	2024-12	A205530-002	AB	1	`2680178bc6a6…`
2024-09-14 05:58 UTC · 2 captures of this ZIP	2024-09	A205530-001	AB	1	`5bbf6a4d5a75…`
2024-09-14 05:58 UTC · 2 captures of this ZIP	2024-09	A205530-002	AB	1	`5bbf6a4d5a75…`
2024-11-08 22:44 UTC · 3 captures of this ZIP	2024-11	A205530-001	AB	1	`d8e5a09893c0…`
2024-11-08 22:44 UTC · 3 captures of this ZIP	2024-11	A205530-002	AB	1	`d8e5a09893c0…`
2024-10-29 15:01 UTC	2024-10	A205530-001	AB	1	`d06236e962d9…`
2024-10-29 15:01 UTC	2024-10	A205530-002	AB	1	`d06236e962d9…`
2024-08-13 05:28 UTC · 3 captures of this ZIP	2024-08	A205530-001	AB	1	`79d66fd596c7…`
2024-08-13 05:28 UTC · 3 captures of this ZIP	2024-08	A205530-002	AB	1	`79d66fd596c7…`
2024-07-13 05:37 UTC · 2 captures of this ZIP	2024-07	A205530-001	AB	1	`301d65b070ca…`
2024-07-13 05:37 UTC · 2 captures of this ZIP	2024-07	A205530-002	AB	1	`301d65b070ca…`
2024-06-18 03:08 UTC · 5 captures of this ZIP	2024-06	A205530-001	AB	1	`1e350fbaab3a…`
2024-06-18 03:08 UTC · 5 captures of this ZIP	2024-06	A205530-002	AB	1	`1e350fbaab3a…`
2024-05-31 18:47 UTC	2024-05	A205530-001	AB	1	`8072bd15b7f6…`
2024-05-31 18:47 UTC	2024-05	A205530-002	AB	1	`8072bd15b7f6…`
2022-06-29 02:47 UTC · 2 captures of this ZIP	2022-06	A205530-001	AB	1	`5c6f7cd8ea54…`
2022-06-29 02:47 UTC · 2 captures of this ZIP	2022-06	A205530-002	AB	1	`5c6f7cd8ea54…`
2022-04-08 23:34 UTC	2022-04	A205530-001	AB	1	`5d02ea3f76ae…`
2022-04-08 23:34 UTC	2022-04	A205530-002	AB	1	`5d02ea3f76ae…`
2022-04-04 05:41 UTC	2022-04	A205530-001	AB	1	`4b0b4de00fa7…`
2022-04-04 05:41 UTC	2022-04	A205530-002	AB	1	`4b0b4de00fa7…`
2019-12-13 00:20 UTC	2019-12	A205530-001	AB	1	`74a2ff9319b5…`
2019-12-13 00:20 UTC	2019-12	A205530-002	AB	1	`74a2ff9319b5…`
2022-03-09 01:35 UTC	2022-03	A205530-001	AB	1	`bb7c543d1eb4…`
2022-03-09 01:35 UTC	2022-03	A205530-002	AB	1	`bb7c543d1eb4…`
2021-12-28 21:50 UTC	2021-12	A205530-001	AB	1	`782e0a99824c…`
2021-12-28 21:50 UTC	2021-12	A205530-002	AB	1	`782e0a99824c…`

Additional Listing Data#

Finished product: Yes
Brand name base: acetazolamide
Listing expiration: 2027-12-31

Active Ingredients#

Ingredient, Strength table
Ingredient	Strength
ACETAZOLAMIDE	125 mg/1

Harmonized UNII identifiers#

UNII identifiers page 1 of 1 · 1 matching rows.

Identifier, FDA.report destination table
Identifier	FDA.report destination
O3FX965V0I	Internal UNII lookup

Harmonized RxCUI identifiers#

RxCUI identifiers page 1 of 1 · 1 matching rows.

Identifier, FDA.report destination table
Identifier	FDA.report destination
197303	Internal RxNorm lookup

Harmonized SPL set identifiers#

SPL set identifiers page 1 of 1 · 1 matching rows.

Identifier, FDA.report destination table
Identifier	FDA.report destination
f8232eaf-e108-aa00-e053-6394a90aede4	Available on FDA.report

DailyMed Product Concepts#

Product concept, Relation, Version table
Product concept	Relation	Version	Effective
94b5d997-68ee-d92e-7c04-a34fdb427a66	Product name	9	20240509
d0adda24-c2d3-39f8-a845-ede9cd56b2c4	Product name	6	20210513
91efc97d-7785-4097-b6cf-4201369f41eb	Product name	3	20190711

DailyMed Package Descriptions#

Package NDC, Product, Description table
Package NDC	Product	Description	Form	Quantity	Strength	SPL version
51655-331-52	acetazolamide	30 in 1 BOTTLE, PLASTIC	TABLET	30		2

DailyMed Dashboard NDC Coverage#

NDC, Dashboard title, SPL version table
NDC	Dashboard title	SPL version	Validation	Dashboard ZIP
51655-331	ACETAZOLAMIDE TABLET [NORTHWIND PHARMACEUTICALS, LLC]	1	Current NDC, 1 package rows	20230413_f8232eaf-e108-aa00-e053-6394a90aede4.zip

openFDA label cross-check#

OpenFDA label data provides additional search and identifier links. DailyMed’s Structured Product Label is the canonical label on FDA.report. Matching records are deduplicated before they are shown below.

Matched openFDA labels page 1 of 1 · 6 matching rows.

Brand, Generic, Manufacturer table
Brand	Generic	Manufacturer	SPL set ID	Effective date	Available safety fields	Join
acetazolamide	ACETAZOLAMIDE	Major Pharmaceuticals	37135ba5-63fd-427f-9b4a-8b7d1009bbca	2026-05-28	Warnings, Adverse reactions	Exact identifier application applno (ANDA): 205530 application number: ANDA205530
acetazolamide	ACETAZOLAMIDE	Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc.	0700a910-79aa-4431-aecf-637fe14fcae8	2026-05-12	Warnings, Adverse reactions	Exact identifier application applno (ANDA): 205530 application number: ANDA205530
acetazolamide	ACETAZOLAMIDE	A-S Medication Solutions	07fd0bde-8f7c-47d2-9e81-2c1eee259fa6	2026-05-01	Warnings, Adverse reactions	Exact identifier application applno (ANDA): 205530 application number: ANDA205530
acetazolamide	ACETAZOLAMIDE	AvKARE	d6fba129-ac6e-4d04-bd09-8470be4e7ecc	2026-02-24	Warnings, Adverse reactions	Exact identifier application applno (ANDA): 205530 application number: ANDA205530
acetazolamide	ACETAZOLAMIDE	Northwind Health Company, LLC	f8232eaf-e108-aa00-e053-6394a90aede4	2026-01-01	Warnings, Adverse reactions	Exact identifier application applno (ANDA): 205530 application number: ANDA205530 ndc (product): 51655-331
Acetazolamide	ACETAZOLAMIDE	Chartwell RX, LLC	f75bbf55-98ac-4f91-b6fd-17b5ac860e55	2024-10-10	Warnings, Adverse reactions	Exact identifier application applno (ANDA): 205530 application number: ANDA205530

UNII, Preferred term, Registry number table
UNII	Preferred term	Registry number	Matched term
O3FX965V0I	ACETAZOLAMIDE	59-66-5	ACETAZOLAMIDE

DailyMed RxNorm Mappings#

RxCUI, RxNorm string, TTY table
RxCUI	RxNorm string	TTY	DailyMed	SPL version
197303	acetaZOLAMIDE 125 MG Oral Tablet	PSN	f8232eaf-e108-aa00-e053-6394a90aede4	2
197303	acetazolamide 125 MG Oral Tablet	SCD	f8232eaf-e108-aa00-e053-6394a90aede4	2

Packages#

Package NDC, 11-digit format, Description table
Package NDC	11-digit format	Description	Units	Marketing start	Sample	Exclude flag	Status
51655-331-52	51655033152	30 TABLET in 1 BOTTLE, PLASTIC (51655-331-52)	30 tablet	2023-03-28	No	No	Current

Title, Manufacturer, Effective date table
Title	Manufacturer	Effective date	Type	Version
Acetazolamide Tablets USP Rx only	Northwind Health Company, LLC	2026-01-01	HUMAN PRESCRIPTION DRUG LABEL	2