Parafon DSC

Product NDC: 68387-375
11-digit product format: 683870375
Labeler code: 68387
Product ID: 68387-375_5af155d7-3780-435b-9a87-0ce01f1ed6ec
Type: HUMAN PRESCRIPTION DRUG
Nonproprietary name: Chlorzoxazone
Dosage form: TABLET
Route: ORAL
Labeler: Keltman Pharmaceuticals Inc.
Application: ANDA089895
Marketing category: ANDA
Marketing start: 2004-06-20
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: E
Listing certified through: 2017-12-31
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 · 3 matching rows.

Dataset, Scope, Product NDC table
Dataset	Scope	Product NDC	Package NDC	Code	Status	Source date
excluded product	product	68387-375		I	Inactivated by FDA	2026-08-07
excluded package	package	68387-375	68387-375-30	I	Inactivated by FDA	2026-08-07
excluded package	package	68387-375	68387-375-90	I	Inactivated by FDA	2026-08-07

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 · 66 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	68387-375-90	`d630ba8d3edf…`	`732f749b63fb…`
2025-12-14 17:58 UTC · source 2025-12-05	excluded package	package	68387-375-30	`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	68387-375-90	`f5e01cc5f278…`	`a2eaf40c39c3…`
2025-08-27 00:01 UTC · source 2025-08-26	excluded package	package	68387-375-30	`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	68387-375-90	`2ef7874e63bc…`	`57b86245f4fa…`
2025-04-01 02:39 UTC · source 2025-03-31	excluded package	package	68387-375-30	`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	68387-375-90	`a1b67e2a42f9…`	`c4cf2c586c0d…`
2025-03-28 20:22 UTC · source 2025-03-28	excluded package	package	68387-375-30	`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	68387-375-90	`cfe11265f3b6…`	`090c488252e2…`
2025-03-22 03:12 UTC · source 2025-03-21	excluded package	package	68387-375-30	`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	68387-375-90	`cdf11ea48f46…`	`ba0047e9e063…`
2025-03-10 12:48 UTC · source 2025-03-10	excluded package	package	68387-375-30	`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	68387-375-90	`302b2466d912…`	`e7b80fea0513…`
2025-02-02 03:52 UTC · source 2025-01-31	excluded package	package	68387-375-30	`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	68387-375-90	`ed331223b511…`	`672a5bd82f5f…`
2025-01-20 13:05 UTC · source 2025-01-20	excluded package	package	68387-375-30	`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	68387-375-90	`0efc9e666f02…`	`f202fb6c5f17…`
2025-01-11 03:41 UTC · source 2025-01-10	excluded package	package	68387-375-30	`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	68387-375-90	`ad56d346431e…`	`cc804d4bbf1e…`
2024-11-09 02:27 UTC · source 2024-11-08	excluded package	package	68387-375-30	`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	68387-375-90	`367a005e9d99…`	`383a685ebd0f…`
2024-10-04 04:10 UTC · source 2024-10-03	excluded package	package	68387-375-30	`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	68387-375-90	`557ba5c1ecfa…`	`9c80585c8c6e…`
2024-07-10 04:00 UTC · source 2024-07-09	excluded package	package	68387-375-30	`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	68387-375-90	`8af77b9d5b6f…`	`d9bbb34c5368…`
2024-05-28 21:12 UTC · source 2024-05-28	excluded package	package	68387-375-30	`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	68387-375-90	`834df4deac94…`	`adcc014656a3…`
2024-05-15 03:39 UTC · source 2024-05-14	excluded package	package	68387-375-30	`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	68387-375-90	`1332a3947898…`	`d4bfe170f9cd…`
2024-03-11 06:39 UTC · source 2024-03-08	excluded package	package	68387-375-30	`1332a3947898…`	`d4bfe170f9cd…`
2022-08-30 03:57 UTC · source 2022-08-29	excluded product	product		`fb8cb913e6d1…`	`eb8c232b6be0…`
2022-08-30 03:57 UTC · source 2022-08-29	excluded package	package	68387-375-90	`fb8cb913e6d1…`	`eb8c232b6be0…`
2022-08-30 03:57 UTC · source 2022-08-29	excluded package	package	68387-375-30	`fb8cb913e6d1…`	`eb8c232b6be0…`
2022-04-09 23:13 UTC · source 2022-04-08	excluded product	product		`86f5da6cb304…`	`a595104c45d7…`
2022-04-09 23:13 UTC · source 2022-04-08	excluded package	package	68387-375-90	`86f5da6cb304…`	`a595104c45d7…`
2022-04-09 23:13 UTC · source 2022-04-08	excluded package	package	68387-375-30	`86f5da6cb304…`	`a595104c45d7…`
2022-04-04 05:40 UTC · source 2022-04-01	excluded product	product		`bd6a592717d7…`	`303034d00443…`
2022-04-04 05:40 UTC · source 2022-04-01	excluded package	package	68387-375-90	`bd6a592717d7…`	`303034d00443…`
2022-04-04 05:40 UTC · source 2022-04-01	excluded package	package	68387-375-30	`bd6a592717d7…`	`303034d00443…`
2021-12-27 23:28 UTC · source 2021-12-27	excluded product	product		`8dfbde2a14a4…`	`c9ff85d89658…`
2021-12-27 23:28 UTC · source 2021-12-27	excluded package	package	68387-375-90	`8dfbde2a14a4…`	`c9ff85d89658…`
2021-12-27 23:28 UTC · source 2021-12-27	excluded package	package	68387-375-30	`8dfbde2a14a4…`	`c9ff85d89658…`
2020-12-18 03:04 UTC · source 2020-12-17	excluded product	product		`e2bbac7714bc…`	`27bdfed8d636…`
2020-12-18 03:04 UTC · source 2020-12-17	excluded package	package	68387-375-90	`e2bbac7714bc…`	`27bdfed8d636…`
2020-12-18 03:04 UTC · source 2020-12-17	excluded package	package	68387-375-30	`e2bbac7714bc…`	`27bdfed8d636…`

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

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
A089895-001	CHLORZOXAZONE	CHLORZOXAZONE	500MG	TABLET / ORAL			1988-05-04

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 · 41 observed states.

Captured, Edition, Application-product table
Captured	Edition	Application-product	Trade name	Strength	Dosage form / route	Approval date	Source SHA-256
2026-02-19 14:30 UTC	2026-02	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`011fe1cb6892…`
2025-12-14 10:44 UTC · 2 captures of this ZIP	2025-12	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`31067a03dcf5…`
2025-08-23 18:47 UTC	2025-08	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`6a471c1ec25d…`
2025-03-22 03:13 UTC · 3 captures of this ZIP	2025-03	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`fd3edfee7708…`
2025-02-26 10:13 UTC · 3 captures of this ZIP	2025-02	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`b8a1b40f171c…`
2025-01-19 17:59 UTC · 7 captures of this ZIP	2025-01	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`03ed91905a0d…`
2024-12-13 21:23 UTC · 2 captures of this ZIP	2024-12	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`2680178bc6a6…`
2024-09-14 05:58 UTC · 2 captures of this ZIP	2024-09	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`5bbf6a4d5a75…`
2024-11-08 22:44 UTC · 3 captures of this ZIP	2024-11	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`d8e5a09893c0…`
2024-10-29 15:01 UTC	2024-10	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`d06236e962d9…`
2024-08-13 05:28 UTC · 3 captures of this ZIP	2024-08	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`79d66fd596c7…`
2024-07-13 05:37 UTC · 2 captures of this ZIP	2024-07	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`301d65b070ca…`
2024-06-18 03:08 UTC · 5 captures of this ZIP	2024-06	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`1e350fbaab3a…`
2024-05-31 18:47 UTC	2024-05	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`8072bd15b7f6…`
2022-06-29 02:47 UTC · 2 captures of this ZIP	2022-06	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`5c6f7cd8ea54…`
2022-04-08 23:34 UTC	2022-04	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`5d02ea3f76ae…`
2022-04-04 05:41 UTC	2022-04	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`4b0b4de00fa7…`
2019-12-13 00:20 UTC	2019-12	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`74a2ff9319b5…`
2022-03-09 01:35 UTC	2022-03	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`bb7c543d1eb4…`
2021-12-28 21:50 UTC	2021-12	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`782e0a99824c…`
2021-05-05 16:15 UTC · 3 captures of this ZIP	2021-05	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`87673890dc5c…`
2021-03-12 10:30 UTC	2021-03	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`5aa47cf7b7d7…`
2020-12-22 03:56 UTC	2020-12	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`8869cabd3fbd…`
2020-11-12 02:37 UTC	2020-11	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`c0c555d07b60…`
2019-12-14 00:12 UTC	2019-12	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`3f01610625f2…`
2019-09-15 20:21 UTC	2019-09	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`b00525d2431f…`
2019-07-19 19:46 UTC	2019-07	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`ea99ee380514…`
2024-03-16 18:09 UTC · 4 captures of this ZIP	2024-03	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`6a51e52b5d6a…`
2024-02-18 07:12 UTC	2024-02	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`1c564ffb4f44…`
2023-12-20 04:57 UTC	2023-12	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`ea1830bbd6c7…`
2023-11-28 05:40 UTC · 2 captures of this ZIP	2023-11	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`a72a2bbeb626…`
2023-10-25 00:34 UTC · 2 captures of this ZIP	2023-10	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`9b2671bbb829…`
2023-07-15 15:27 UTC · 2 captures of this ZIP	2023-07	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`a67488948f0b…`
2023-06-13 01:57 UTC · 3 captures of this ZIP	2023-06	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`3f0d92c62455…`
2023-05-13 08:27 UTC	2023-05	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`053a50430f4f…`
2023-01-26 05:58 UTC	2023-01	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`3bdfa0b2c4d7…`
2022-11-12 20:34 UTC · 5 captures of this ZIP	2022-11	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`3a93d1ddd44b…`
2022-10-28 04:53 UTC	2022-10	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`f41ea6bd6efb…`
2022-09-29 23:25 UTC	2022-09	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`e64feba35796…`
2022-07-09 03:26 UTC · 3 captures of this ZIP	2022-07	A089895-001	CHLORZOXAZONE	500MG	TABLET / ORAL	1988-05-04	`cb3db0bc1861…`

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
68387-375-30	2019-10-21	C162847	48780-1	956f9ecf-bd99-621f-e053-dbdaa90a74ad	Parafon DSC (chlorzoxazone)
68387-375-90	2019-10-21	C162847	48780-1	956f9ecf-bd99-621f-e053-dbdaa90a74ad	Parafon DSC (chlorzoxazone)

DailyMed Package Descriptions#

Package NDC, Product, Description table
Package NDC	Product	Description	Form	Quantity	Strength	SPL version
68387-375-30	Parafon DSC	30 in 1 BOTTLE	TABLET	30		1
68387-375-90	Parafon DSC	90 in 1 BOTTLE	TABLET	90		1

DailyMed Billing Units#

Package NDC, Billing unit, Product NDC table
Package NDC	Billing unit	Product NDC	DailyMed indexing SPL	SPL version	Effective
68387-375-30	EA - Each	68387-375	c8676cc2-7918-4462-8213-dd71056e706a	1	2012-07-24
68387-375-90	EA - Each	68387-375	f5e883bd-f178-4554-b143-9597522220e4	1	2012-07-24

DailyMed Socrata Ingredients#

Ingredient, Type, UNII table
Ingredient	Type	UNII	DailyMed label	SPL version
Chlorzoxazone	ACTIVE INGREDIENT	H0DE420U8G	PARAFON DSC (CHLORZOXAZONE) TABLET [KELTMAN PHARMACEUTICALS INC.]	1
Chlorzoxazone	ACTIVE MOIETY	H0DE420U8G	PARAFON DSC (CHLORZOXAZONE) TABLET [KELTMAN PHARMACEUTICALS INC.]	1
ANHYDROUS LACTOSE	INACTIVE INGREDIENT	3SY5LH9PMK	PARAFON DSC (CHLORZOXAZONE) TABLET [KELTMAN PHARMACEUTICALS INC.]	1
CELLULOSE, MICROCRYSTALLINE	INACTIVE INGREDIENT	OP1R32D61U	PARAFON DSC (CHLORZOXAZONE) TABLET [KELTMAN PHARMACEUTICALS INC.]	1
COLLOIDAL SILICON DIOXIDE	INACTIVE INGREDIENT	ETJ7Z6XBU4	PARAFON DSC (CHLORZOXAZONE) TABLET [KELTMAN PHARMACEUTICALS INC.]	1
CROSCARMELLOSE SODIUM	INACTIVE INGREDIENT	M28OL1HH48	PARAFON DSC (CHLORZOXAZONE) TABLET [KELTMAN PHARMACEUTICALS INC.]	1
D&C YELLOW NO. 10	INACTIVE INGREDIENT	35SW5USQ3G	PARAFON DSC (CHLORZOXAZONE) TABLET [KELTMAN PHARMACEUTICALS INC.]	1
DOCUSATE SODIUM	INACTIVE INGREDIENT	F05Q2T2JA0	PARAFON DSC (CHLORZOXAZONE) TABLET [KELTMAN PHARMACEUTICALS INC.]	1
FD&C BLUE NO. 1	INACTIVE INGREDIENT	H3R47K3TBD	PARAFON DSC (CHLORZOXAZONE) TABLET [KELTMAN PHARMACEUTICALS INC.]	1
MAGNESIUM STEARATE	INACTIVE INGREDIENT	70097M6I30	PARAFON DSC (CHLORZOXAZONE) TABLET [KELTMAN PHARMACEUTICALS INC.]	1
SODIUM BENZOATE	INACTIVE INGREDIENT	OJ245FE5EU	PARAFON DSC (CHLORZOXAZONE) TABLET [KELTMAN PHARMACEUTICALS INC.]	1

DailyMed Dashboard NDC Coverage#

NDC, Dashboard title, SPL version table
NDC	Dashboard title	SPL version	Validation	Dashboard ZIP
68387-375	PARAFON DSC (CHLORZOXAZONE) TABLET [KELTMAN PHARMACEUTICALS INC.]	1	Legacy NDC, 2 package rows	20100212_5af155d7-3780-435b-9a87-0ce01f1ed6ec.zip

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	5af155d7-3780-435b-9a87-0ce01f1ed6ec	1
197502	chlorzoxazone 500 MG Oral Tablet	SCD	5af155d7-3780-435b-9a87-0ce01f1ed6ec	1

Packages#

Package NDC, 11-digit format, Description table
Package NDC	11-digit format	Description	Status
68387-375-30	68387037530	30 in 1 BOTTLE	Historical
68387-375-90	68387037590	90 in 1 BOTTLE	Historical

Title, Manufacturer, Effective date table
Title	Manufacturer	Effective date	Type	Version
Parafon DSC (chlorzoxazone)	Keltman Pharmaceuticals Inc. \| Barr Laboratories, Inc.	2010-02-09	HUMAN PRESCRIPTION DRUG LABEL	1