Chlorzoxazone

Product NDC: 33261-021
11-digit product format: 332610021
Labeler code: 33261
Product ID: 33261-021_a9dbb759-844a-4b12-9fe5-c08c041c49b6
Type: HUMAN PRESCRIPTION DRUG
Nonproprietary name: Chlorzoxazone
Dosage form: TABLET
Route: ORAL
Labeler: Aidarex Pharmaceuticals LLC
Application: ANDA089859
Marketing category: ANDA
Marketing start: 2011-08-22
Marketing end: 0000-00-00
Substance: CHLORZOXAZONE
Active strength: 500 mg/1
Pharmacologic classes: Centrally-mediated Muscle Relaxation [PE],Muscle Relaxant [EPC]
NDC exclude flag: No
Listing certified through: 2019-12-31
Current FDA listing: Historical FDA.report record

NDC auxiliary status#

These records are reproduced from FDA’s unfinished, excluded, and compounder listings. They describe what appeared in the source files; a missing record does not establish a regulatory status. View all current auxiliary records, including entries without an NDC. · View the auxiliary file history.

Current NDC status page 1 of 1 · 4 matching rows.

Dataset, Scope, Product NDC table
Dataset	Scope	Product NDC	Package NDC	Code	Status	Source date
excluded product	product	33261-021		I	Inactivated by FDA	2026-08-17
excluded package	package	33261-021	33261-021-30	I	Inactivated by FDA	2026-08-17
excluded package	package	33261-021	33261-021-60	I	Inactivated by FDA	2026-08-17
excluded package	package	33261-021	33261-021-90	I	Inactivated by FDA	2026-08-17

Observed NDC auxiliary status history#

This history shows the information present in each captured FDA auxiliary file. It is not a continuous regulatory timeline, and a missing record does not establish a status.

Historic NDC status page 1 of 2 · 84 matching rows.

View current auxiliary records. · View the auxiliary file history.

Captured / source date, Dataset, Scope table
Captured / source date	Dataset	Scope	Package NDC	Snapshot	Source SHA-256
2025-12-14 17:58 UTC · source 2025-12-05	excluded product	product		`d630ba8d3edf…`	`732f749b63fb…`
2025-12-14 17:58 UTC · source 2025-12-05	excluded package	package	33261-021-60	`d630ba8d3edf…`	`732f749b63fb…`
2025-12-14 17:58 UTC · source 2025-12-05	excluded package	package	33261-021-90	`d630ba8d3edf…`	`732f749b63fb…`
2025-12-14 17:58 UTC · source 2025-12-05	excluded package	package	33261-021-30	`d630ba8d3edf…`	`732f749b63fb…`
2025-08-27 00:01 UTC · source 2025-08-26	excluded product	product		`f5e01cc5f278…`	`a2eaf40c39c3…`
2025-08-27 00:01 UTC · source 2025-08-26	excluded package	package	33261-021-60	`f5e01cc5f278…`	`a2eaf40c39c3…`
2025-08-27 00:01 UTC · source 2025-08-26	excluded package	package	33261-021-90	`f5e01cc5f278…`	`a2eaf40c39c3…`
2025-08-27 00:01 UTC · source 2025-08-26	excluded package	package	33261-021-30	`f5e01cc5f278…`	`a2eaf40c39c3…`
2025-04-01 02:39 UTC · source 2025-03-31	excluded product	product		`2ef7874e63bc…`	`57b86245f4fa…`
2025-04-01 02:39 UTC · source 2025-03-31	excluded package	package	33261-021-60	`2ef7874e63bc…`	`57b86245f4fa…`
2025-04-01 02:39 UTC · source 2025-03-31	excluded package	package	33261-021-90	`2ef7874e63bc…`	`57b86245f4fa…`
2025-04-01 02:39 UTC · source 2025-03-31	excluded package	package	33261-021-30	`2ef7874e63bc…`	`57b86245f4fa…`
2025-03-28 20:22 UTC · source 2025-03-28	excluded product	product		`a1b67e2a42f9…`	`c4cf2c586c0d…`
2025-03-28 20:22 UTC · source 2025-03-28	excluded package	package	33261-021-60	`a1b67e2a42f9…`	`c4cf2c586c0d…`
2025-03-28 20:22 UTC · source 2025-03-28	excluded package	package	33261-021-90	`a1b67e2a42f9…`	`c4cf2c586c0d…`
2025-03-28 20:22 UTC · source 2025-03-28	excluded package	package	33261-021-30	`a1b67e2a42f9…`	`c4cf2c586c0d…`
2025-03-22 03:12 UTC · source 2025-03-21	excluded product	product		`cfe11265f3b6…`	`090c488252e2…`
2025-03-22 03:12 UTC · source 2025-03-21	excluded package	package	33261-021-60	`cfe11265f3b6…`	`090c488252e2…`
2025-03-22 03:12 UTC · source 2025-03-21	excluded package	package	33261-021-90	`cfe11265f3b6…`	`090c488252e2…`
2025-03-22 03:12 UTC · source 2025-03-21	excluded package	package	33261-021-30	`cfe11265f3b6…`	`090c488252e2…`
2025-03-10 12:48 UTC · source 2025-03-10	excluded product	product		`cdf11ea48f46…`	`ba0047e9e063…`
2025-03-10 12:48 UTC · source 2025-03-10	excluded package	package	33261-021-60	`cdf11ea48f46…`	`ba0047e9e063…`
2025-03-10 12:48 UTC · source 2025-03-10	excluded package	package	33261-021-90	`cdf11ea48f46…`	`ba0047e9e063…`
2025-03-10 12:48 UTC · source 2025-03-10	excluded package	package	33261-021-30	`cdf11ea48f46…`	`ba0047e9e063…`
2025-02-02 03:52 UTC · source 2025-01-31	excluded product	product		`302b2466d912…`	`e7b80fea0513…`
2025-02-02 03:52 UTC · source 2025-01-31	excluded package	package	33261-021-60	`302b2466d912…`	`e7b80fea0513…`
2025-02-02 03:52 UTC · source 2025-01-31	excluded package	package	33261-021-90	`302b2466d912…`	`e7b80fea0513…`
2025-02-02 03:52 UTC · source 2025-01-31	excluded package	package	33261-021-30	`302b2466d912…`	`e7b80fea0513…`
2025-01-20 13:05 UTC · source 2025-01-20	excluded product	product		`ed331223b511…`	`672a5bd82f5f…`
2025-01-20 13:05 UTC · source 2025-01-20	excluded package	package	33261-021-60	`ed331223b511…`	`672a5bd82f5f…`
2025-01-20 13:05 UTC · source 2025-01-20	excluded package	package	33261-021-90	`ed331223b511…`	`672a5bd82f5f…`
2025-01-20 13:05 UTC · source 2025-01-20	excluded package	package	33261-021-30	`ed331223b511…`	`672a5bd82f5f…`
2025-01-11 03:41 UTC · source 2025-01-10	excluded product	product		`0efc9e666f02…`	`f202fb6c5f17…`
2025-01-11 03:41 UTC · source 2025-01-10	excluded package	package	33261-021-60	`0efc9e666f02…`	`f202fb6c5f17…`
2025-01-11 03:41 UTC · source 2025-01-10	excluded package	package	33261-021-90	`0efc9e666f02…`	`f202fb6c5f17…`
2025-01-11 03:41 UTC · source 2025-01-10	excluded package	package	33261-021-30	`0efc9e666f02…`	`f202fb6c5f17…`
2024-11-09 02:27 UTC · source 2024-11-08	excluded product	product		`ad56d346431e…`	`cc804d4bbf1e…`
2024-11-09 02:27 UTC · source 2024-11-08	excluded package	package	33261-021-60	`ad56d346431e…`	`cc804d4bbf1e…`
2024-11-09 02:27 UTC · source 2024-11-08	excluded package	package	33261-021-90	`ad56d346431e…`	`cc804d4bbf1e…`
2024-11-09 02:27 UTC · source 2024-11-08	excluded package	package	33261-021-30	`ad56d346431e…`	`cc804d4bbf1e…`
2024-10-04 04:10 UTC · source 2024-10-03	excluded product	product		`367a005e9d99…`	`383a685ebd0f…`
2024-10-04 04:10 UTC · source 2024-10-03	excluded package	package	33261-021-60	`367a005e9d99…`	`383a685ebd0f…`
2024-10-04 04:10 UTC · source 2024-10-03	excluded package	package	33261-021-90	`367a005e9d99…`	`383a685ebd0f…`
2024-10-04 04:10 UTC · source 2024-10-03	excluded package	package	33261-021-30	`367a005e9d99…`	`383a685ebd0f…`
2024-07-10 04:00 UTC · source 2024-07-09	excluded product	product		`557ba5c1ecfa…`	`9c80585c8c6e…`
2024-07-10 04:00 UTC · source 2024-07-09	excluded package	package	33261-021-60	`557ba5c1ecfa…`	`9c80585c8c6e…`
2024-07-10 04:00 UTC · source 2024-07-09	excluded package	package	33261-021-90	`557ba5c1ecfa…`	`9c80585c8c6e…`
2024-07-10 04:00 UTC · source 2024-07-09	excluded package	package	33261-021-30	`557ba5c1ecfa…`	`9c80585c8c6e…`
2024-05-28 21:12 UTC · source 2024-05-28	excluded product	product		`8af77b9d5b6f…`	`d9bbb34c5368…`
2024-05-28 21:12 UTC · source 2024-05-28	excluded package	package	33261-021-60	`8af77b9d5b6f…`	`d9bbb34c5368…`
2024-05-28 21:12 UTC · source 2024-05-28	excluded package	package	33261-021-90	`8af77b9d5b6f…`	`d9bbb34c5368…`
2024-05-28 21:12 UTC · source 2024-05-28	excluded package	package	33261-021-30	`8af77b9d5b6f…`	`d9bbb34c5368…`
2024-05-15 03:39 UTC · source 2024-05-14	excluded product	product		`834df4deac94…`	`adcc014656a3…`
2024-05-15 03:39 UTC · source 2024-05-14	excluded package	package	33261-021-60	`834df4deac94…`	`adcc014656a3…`
2024-05-15 03:39 UTC · source 2024-05-14	excluded package	package	33261-021-90	`834df4deac94…`	`adcc014656a3…`
2024-05-15 03:39 UTC · source 2024-05-14	excluded package	package	33261-021-30	`834df4deac94…`	`adcc014656a3…`
2024-03-11 06:39 UTC · source 2024-03-08	excluded product	product		`1332a3947898…`	`d4bfe170f9cd…`
2024-03-11 06:39 UTC · source 2024-03-08	excluded package	package	33261-021-60	`1332a3947898…`	`d4bfe170f9cd…`
2024-03-11 06:39 UTC · source 2024-03-08	excluded package	package	33261-021-90	`1332a3947898…`	`d4bfe170f9cd…`
2024-03-11 06:39 UTC · source 2024-03-08	excluded package	package	33261-021-30	`1332a3947898…`	`d4bfe170f9cd…`

Source provenance: Browse the complete Orange Book source catalog · source snapshot 42.

Orange Book products#

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

Application-product, Trade name, Ingredient table
Application-product	Trade name	Ingredient	Strength	Dosage form / route	TE codes	RLD / RS	Approval date
A089859-001	CHLORZOXAZONE	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04

Therapeutic equivalence codes#

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

Application-product, TE code table
Application-product	TE code
A089859-001	AA

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 2 · 42 observed states.

Captured, Edition, Application-product table
Captured	Edition	Application-product	Trade name	Strength	Dosage form / route	Product TE source text	RLD / RS	Approval date	Source SHA-256
2026-08-18 06:07:40	2026-07	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`caaa826d4ba7…`
2026-02-19 14:30 UTC	2026-02	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`011fe1cb6892…`
2025-12-14 10:44 UTC · 2 captures of this ZIP	2025-12	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`31067a03dcf5…`
2025-08-23 18:47 UTC	2025-08	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`6a471c1ec25d…`
2025-03-22 03:13 UTC · 3 captures of this ZIP	2025-03	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`fd3edfee7708…`
2025-02-26 10:13 UTC · 3 captures of this ZIP	2025-02	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`b8a1b40f171c…`
2025-01-19 17:59 UTC · 7 captures of this ZIP	2025-01	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`03ed91905a0d…`
2024-12-13 21:23 UTC · 2 captures of this ZIP	2024-12	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`2680178bc6a6…`
2024-09-14 05:58 UTC · 2 captures of this ZIP	2024-09	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`5bbf6a4d5a75…`
2024-11-08 22:44 UTC · 3 captures of this ZIP	2024-11	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`d8e5a09893c0…`
2024-10-29 15:01 UTC	2024-10	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`d06236e962d9…`
2024-08-13 05:28 UTC · 3 captures of this ZIP	2024-08	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`79d66fd596c7…`
2024-07-13 05:37 UTC · 2 captures of this ZIP	2024-07	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`301d65b070ca…`
2024-06-18 03:08 UTC · 5 captures of this ZIP	2024-06	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`1e350fbaab3a…`
2024-05-31 18:47 UTC	2024-05	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`8072bd15b7f6…`
2022-06-29 02:47 UTC · 2 captures of this ZIP	2022-06	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`5c6f7cd8ea54…`
2022-04-08 23:34 UTC	2022-04	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`5d02ea3f76ae…`
2022-04-04 05:41 UTC	2022-04	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`4b0b4de00fa7…`
2019-12-13 00:20 UTC	2019-12	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`74a2ff9319b5…`
2022-03-09 01:35 UTC	2022-03	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`bb7c543d1eb4…`
2021-12-28 21:50 UTC	2021-12	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`782e0a99824c…`
2021-05-05 16:15 UTC · 3 captures of this ZIP	2021-05	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`87673890dc5c…`
2021-03-12 10:30 UTC	2021-03	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`5aa47cf7b7d7…`
2020-12-22 03:56 UTC	2020-12	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`8869cabd3fbd…`
2020-11-12 02:37 UTC	2020-11	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`c0c555d07b60…`
2019-12-14 00:12 UTC	2019-12	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`3f01610625f2…`
2019-09-15 20:21 UTC	2019-09	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL		RS	1988-05-04	`b00525d2431f…`
2019-07-19 19:46 UTC	2019-07	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL		RS	1988-05-04	`ea99ee380514…`
2024-03-16 18:09 UTC · 4 captures of this ZIP	2024-03	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`6a51e52b5d6a…`
2024-02-18 07:12 UTC	2024-02	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`1c564ffb4f44…`
2023-12-20 04:57 UTC	2023-12	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`ea1830bbd6c7…`
2023-11-28 05:40 UTC · 2 captures of this ZIP	2023-11	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`a72a2bbeb626…`
2023-10-25 00:34 UTC · 2 captures of this ZIP	2023-10	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`9b2671bbb829…`
2023-07-15 15:27 UTC · 2 captures of this ZIP	2023-07	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`a67488948f0b…`
2023-06-13 01:57 UTC · 3 captures of this ZIP	2023-06	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`3f0d92c62455…`
2023-05-13 08:27 UTC	2023-05	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`053a50430f4f…`
2023-01-26 05:58 UTC	2023-01	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`3bdfa0b2c4d7…`
2022-11-12 20:34 UTC · 5 captures of this ZIP	2022-11	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`3a93d1ddd44b…`
2022-10-28 04:53 UTC	2022-10	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`f41ea6bd6efb…`
2022-09-29 23:25 UTC	2022-09	A089859-001	CHLORZOXAZONE	500MG	TABLET / ORAL	AA	RS	1988-05-04	`e64feba35796…`

Observed Orange Book normalized TE history#

Captured, Edition, Application-product table
Captured	Edition	Application-product	TE code	Order	Source SHA-256
2026-08-18 06:07:40	2026-07	A089859-001	AA	1	`caaa826d4ba7…`
2026-02-19 14:30 UTC	2026-02	A089859-001	AA	1	`011fe1cb6892…`
2025-12-14 10:44 UTC · 2 captures of this ZIP	2025-12	A089859-001	AA	1	`31067a03dcf5…`
2025-08-23 18:47 UTC	2025-08	A089859-001	AA	1	`6a471c1ec25d…`
2025-03-22 03:13 UTC · 3 captures of this ZIP	2025-03	A089859-001	AA	1	`fd3edfee7708…`
2025-02-26 10:13 UTC · 3 captures of this ZIP	2025-02	A089859-001	AA	1	`b8a1b40f171c…`
2025-01-19 17:59 UTC · 7 captures of this ZIP	2025-01	A089859-001	AA	1	`03ed91905a0d…`
2024-12-13 21:23 UTC · 2 captures of this ZIP	2024-12	A089859-001	AA	1	`2680178bc6a6…`
2024-09-14 05:58 UTC · 2 captures of this ZIP	2024-09	A089859-001	AA	1	`5bbf6a4d5a75…`
2024-11-08 22:44 UTC · 3 captures of this ZIP	2024-11	A089859-001	AA	1	`d8e5a09893c0…`
2024-10-29 15:01 UTC	2024-10	A089859-001	AA	1	`d06236e962d9…`
2024-08-13 05:28 UTC · 3 captures of this ZIP	2024-08	A089859-001	AA	1	`79d66fd596c7…`
2024-07-13 05:37 UTC · 2 captures of this ZIP	2024-07	A089859-001	AA	1	`301d65b070ca…`
2024-06-18 03:08 UTC · 5 captures of this ZIP	2024-06	A089859-001	AA	1	`1e350fbaab3a…`
2024-05-31 18:47 UTC	2024-05	A089859-001	AA	1	`8072bd15b7f6…`
2022-06-29 02:47 UTC · 2 captures of this ZIP	2022-06	A089859-001	AA	1	`5c6f7cd8ea54…`
2022-04-08 23:34 UTC	2022-04	A089859-001	AA	1	`5d02ea3f76ae…`
2022-04-04 05:41 UTC	2022-04	A089859-001	AA	1	`4b0b4de00fa7…`
2019-12-13 00:20 UTC	2019-12	A089859-001	AA	1	`74a2ff9319b5…`
2022-03-09 01:35 UTC	2022-03	A089859-001	AA	1	`bb7c543d1eb4…`
2021-12-28 21:50 UTC	2021-12	A089859-001	AA	1	`782e0a99824c…`
2021-05-05 16:15 UTC · 3 captures of this ZIP	2021-05	A089859-001	AA	1	`87673890dc5c…`
2021-03-12 10:30 UTC	2021-03	A089859-001	AA	1	`5aa47cf7b7d7…`
2020-12-22 03:56 UTC	2020-12	A089859-001	AA	1	`8869cabd3fbd…`
2020-11-12 02:37 UTC	2020-11	A089859-001	AA	1	`c0c555d07b60…`
2019-12-14 00:12 UTC	2019-12	A089859-001	AA	1	`3f01610625f2…`
2024-03-16 18:09 UTC · 4 captures of this ZIP	2024-03	A089859-001	AA	1	`6a51e52b5d6a…`
2024-02-18 07:12 UTC	2024-02	A089859-001	AA	1	`1c564ffb4f44…`
2023-12-20 04:57 UTC	2023-12	A089859-001	AA	1	`ea1830bbd6c7…`
2023-11-28 05:40 UTC · 2 captures of this ZIP	2023-11	A089859-001	AA	1	`a72a2bbeb626…`
2023-10-25 00:34 UTC · 2 captures of this ZIP	2023-10	A089859-001	AA	1	`9b2671bbb829…`
2023-07-15 15:27 UTC · 2 captures of this ZIP	2023-07	A089859-001	AA	1	`a67488948f0b…`
2023-06-13 01:57 UTC · 3 captures of this ZIP	2023-06	A089859-001	AA	1	`3f0d92c62455…`
2023-05-13 08:27 UTC	2023-05	A089859-001	AA	1	`053a50430f4f…`
2023-01-26 05:58 UTC	2023-01	A089859-001	AA	1	`3bdfa0b2c4d7…`
2022-11-12 20:34 UTC · 5 captures of this ZIP	2022-11	A089859-001	AA	1	`3a93d1ddd44b…`
2022-10-28 04:53 UTC	2022-10	A089859-001	AA	1	`f41ea6bd6efb…`
2022-09-29 23:25 UTC	2022-09	A089859-001	AA	1	`e64feba35796…`
2022-07-09 03:26 UTC · 3 captures of this ZIP	2022-07	A089859-001	AA	1	`cb3db0bc1861…`
2026-07-26 02:55 UTC · 3 captures of this ZIP	2026-06	A089859-001	AA	1	`a50c72e98297…`

DailyMed Product Concepts#

Product concept, Relation, Version table
Product concept	Relation	Version	Effective
a7ba9d15-162f-2741-f0fc-3516be5e88bd	Product name	7	20250114
cbf4a4f8-16cb-4546-a0cc-fd91bbe774f2	Product name	2	20240223
0a48cfb8-244e-463e-aa85-fd9bbbc9190a	Product name	2	20200224

FDA-Initiated Inactive NDC Indexing#

NDC, Effective, Action table
NDC	Effective	Action	Document	Indexing SPL	Related label
33261-021-30	2020-01-31	C162847	48780-1	9d75b9d1-24bd-f424-e053-dadaa90a57ce	CHLORZOXAZONE TABLETS, USP 500 mg Revised: November 2010 Rx only 195609
33261-021-60	2020-01-31	C162847	48780-1	9d75b9d1-24bd-f424-e053-dadaa90a57ce	CHLORZOXAZONE TABLETS, USP 500 mg Revised: November 2010 Rx only 195609
33261-021-90	2020-01-31	C162847	48780-1	9d75b9d1-24bd-f424-e053-dadaa90a57ce	CHLORZOXAZONE TABLETS, USP 500 mg Revised: November 2010 Rx only 195609

DailyMed Package Descriptions#

Package NDC, Product, Description table
Package NDC	Product	Description	Form	Quantity	SPL version
33261-021-30	Chlorzoxazone	30 in 1 BOTTLE, PLASTIC	TABLET	30	2
33261-021-60	Chlorzoxazone	60 in 1 BOTTLE, PLASTIC	TABLET	60	2
33261-021-90	Chlorzoxazone	90 in 1 BOTTLE, PLASTIC	TABLET	90	2

DailyMed Billing Units#

Package NDC, Billing unit, Product NDC table
Package NDC	Billing unit	Product NDC	DailyMed indexing SPL	SPL version	Effective
33261-021-30	EA - Each	33261-021	44d6c270-d016-43d0-95f8-a7bcd4dd35ad	1	2015-10-02
33261-021-60	EA - Each	33261-021	9c2823cd-dfd3-4a2e-b8cc-150a57a08a33	1	2015-10-02
33261-021-90	EA - Each	33261-021	5e342962-38cc-40c6-abe0-f5bb3131067c	1	2015-10-02

DailyMed Socrata Ingredients#

Ingredient, Type, UNII table
Ingredient	Type	UNII	DailyMed label	SPL version
CHLORZOXAZONE	ACTIVE INGREDIENT	H0DE420U8G	CHLORZOXAZONE TABLET [AIDAREX PHARMACEUTICALS LLC]	2
CHLORZOXAZONE	ACTIVE MOIETY	H0DE420U8G	CHLORZOXAZONE TABLET [AIDAREX PHARMACEUTICALS LLC]	2
CELLULOSE, MICROCRYSTALLINE	INACTIVE INGREDIENT	OP1R32D61U	CHLORZOXAZONE TABLET [AIDAREX PHARMACEUTICALS LLC]	2
DOCUSATE SODIUM	INACTIVE INGREDIENT	F05Q2T2JA0	CHLORZOXAZONE TABLET [AIDAREX PHARMACEUTICALS LLC]	2
LACTOSE MONOHYDRATE	INACTIVE INGREDIENT	EWQ57Q8I5X	CHLORZOXAZONE TABLET [AIDAREX PHARMACEUTICALS LLC]	2
MAGNESIUM STEARATE	INACTIVE INGREDIENT	70097M6I30	CHLORZOXAZONE TABLET [AIDAREX PHARMACEUTICALS LLC]	2
SODIUM BENZOATE	INACTIVE INGREDIENT	OJ245FE5EU	CHLORZOXAZONE TABLET [AIDAREX PHARMACEUTICALS LLC]	2
SODIUM STARCH GLYCOLATE TYPE A POTATO	INACTIVE INGREDIENT	5856J3G2A2	CHLORZOXAZONE TABLET [AIDAREX PHARMACEUTICALS LLC]	2
STARCH, CORN	INACTIVE INGREDIENT	O8232NY3SJ	CHLORZOXAZONE TABLET [AIDAREX PHARMACEUTICALS LLC]	2

DailyMed Dashboard NDC Coverage#

NDC, Dashboard title, SPL version table
NDC	Dashboard title	SPL version	Validation	Dashboard ZIP
33261-021	CHLORZOXAZONE TABLET [AIDAREX PHARMACEUTICALS LLC]	2	Legacy NDC, 3 package rows	20140102_63f43b2a-dd5b-482c-a00c-7643d91c2292.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 · 5 matching rows.

Brand, Generic, Manufacturer table
Brand	Generic	Manufacturer	SPL set ID	Effective date	Available safety fields	Join
Chlorzoxazone	CHLORZOXAZONE	PD-Rx Pharmaceuticals, Inc.	8650d342-92df-48d7-9f3d-cdd6f6f4c0e7	2025-10-20	Warnings, Adverse reactions	Exact identifier application applno (ANDA): 089859 application number: ANDA089859
Chlorzoxazone	CHLORZOXAZONE	Bryant Ranch Prepack	5e6889c9-a091-4622-0a00-ad0fc1830f78	2024-10-08	Warnings, Adverse reactions	Exact identifier application applno (ANDA): 089859 application number: ANDA089859
Chlorzoxazone	CHLORZOXAZONE	Actavis Pharma, Inc.	2f05e8e2-616f-475b-ac9f-c42e1a5dbe81	2024-08-25	Warnings, Adverse reactions	Exact identifier application applno (ANDA): 089859 application number: ANDA089859
Chlorzoxazone	CHLORZOXAZONE	A-S Medication Solutions	6c418b8f-4a1c-4611-80d5-3a3a7dbca9c8	2023-03-08	Warnings, Adverse reactions	Exact identifier application applno (ANDA): 089859 application number: ANDA089859
Chlorzoxazone	CHLORZOXAZONE	Proficient Rx LP	63338935-f3dd-4ef1-bb66-856a83c95f41	2022-04-01	Warnings, Adverse reactions	Exact identifier application applno (ANDA): 089859 application number: ANDA089859

UNII, Preferred term, Registry number table
UNII	Preferred term	Registry number	Matched term
H0DE420U8G	CHLORZOXAZONE	95-25-0	CHLORZOXAZONE

DailyMed RxNorm Mappings#

RxCUI, RxNorm string, TTY table
RxCUI	RxNorm string	TTY	DailyMed	SPL version
197502	chlorzoxazone 500 MG Oral Tablet	PSN	63f43b2a-dd5b-482c-a00c-7643d91c2292	2
197502	chlorzoxazone 500 MG Oral Tablet	SCD	63f43b2a-dd5b-482c-a00c-7643d91c2292	2

Packages#

Package NDC, 11-digit format, Description table
Package NDC	11-digit format	Description	Status
33261-021-30	33261002130	30 in 1 BOTTLE, PLASTIC	Historical
33261-021-60	33261002160	60 in 1 BOTTLE, PLASTIC	Historical
33261-021-90	33261002190	90 in 1 BOTTLE, PLASTIC	Historical

Title, Manufacturer, Effective date table
Title	Manufacturer	Effective date	Type	Version
CHLORZOXAZONE TABLETS, USP 500 mg Revised: November 2010 Rx only 195609	Aidarex Pharmaceuticals LLC	2012-09-14	HUMAN PRESCRIPTION DRUG LABEL	2