Home NDC 50090-0315 Chlorzoxazone
Product NDC 50090-0315
11-digit product format 500900315
Labeler code 50090
Product ID 50090-0315_961bd335-5552-432f-a0fc-457aac9276f1
Type HUMAN PRESCRIPTION DRUG
Nonproprietary name Chlorzoxazone
Dosage form TABLET
Route ORAL
Labeler A-S Medication Solutions
Application ANDA089859
Marketing category ANDA
Marketing start 2011-08-22
Substance CHLORZOXAZONE
Active strength 500 mg/1
Pharmacologic classes Centrally-mediated Muscle Relaxation [PE], Muscle Relaxant [EPC]
NDC exclude flag No
Listing certified through 2026-12-31
Current FDA listing Yes 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# Additional Listing Data#
Finished product Yes
Brand name base Chlorzoxazone
Listing expiration 2026-12-31 Active Ingredients# Ingredient, Strength table Ingredient Strength CHLORZOXAZONE 500 mg/1
Harmonized UNII identifiers# UNII identifiers page 1 of 1 · 1 matching rows.
Identifier, FDA.report destination table Identifier FDA.report destination H0DE420U8G Internal UNII lookup
Harmonized RxCUI identifiers# RxCUI identifiers page 1 of 1 · 1 matching rows.
Identifier, FDA.report destination table Identifier FDA.report destination 197502 Internal RxNorm lookup
Harmonized SPL set identifiers# SPL set identifiers page 1 of 1 · 1 matching rows.
DailyMed Product Concepts# FDA-Initiated Inactive NDC Indexing# NDC, Effective, Related label table NDC Effective Related label 50090-0315-0 2023-02-07 Chlorzoxazone Tablets, USP 500 mg Revised: March 2015 Rx only 195609-1 50090-0315-1 2023-02-07 Chlorzoxazone Tablets, USP 500 mg Revised: March 2015 Rx only 195609-1 50090-0315-3 2023-02-07 Chlorzoxazone Tablets, USP 500 mg Revised: March 2015 Rx only 195609-1 50090-0315-4 2023-02-07 Chlorzoxazone Tablets, USP 500 mg Revised: March 2015 Rx only 195609-1 50090-0315-0 2023-01-30 Chlorzoxazone Tablets, USP 500 mg Revised: March 2015 Rx only 195609-1 50090-0315-1 2023-01-30 Chlorzoxazone Tablets, USP 500 mg Revised: March 2015 Rx only 195609-1 50090-0315-3 2023-01-30 Chlorzoxazone Tablets, USP 500 mg Revised: March 2015 Rx only 195609-1 50090-0315-4 2023-01-30 Chlorzoxazone Tablets, USP 500 mg Revised: March 2015 Rx only 195609-1
DailyMed Package Descriptions# Package NDC, Product, Description table Package NDC Product Description Form Quantity Strength SPL version 50090-0315-0 Chlorzoxazone 30 in 1 BOTTLE TABLET 30 21 50090-0315-1 Chlorzoxazone 20 in 1 BOTTLE TABLET 20 21 50090-0315-3 Chlorzoxazone 60 in 1 BOTTLE TABLET 60 21 50090-0315-4 Chlorzoxazone 40 in 1 BOTTLE TABLET 40 21
DailyMed Dashboard NDC Coverage# NDC, Dashboard title, SPL version table NDC Dashboard title SPL version Validation Dashboard ZIP 50090-0315 CHLORZOXAZONE TABLET [A-S MEDICATION SOLUTIONS] 21 Current NDC, Legacy NDC, 4 package rows 20230317_6c418b8f-4a1c-4611-80d5-3a3a7dbca9c8.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.
DailyMed RxNorm Mappings# Packages# Package NDC, 11-digit format, Description table Package NDC 11-digit format Description Units Marketing start Marketing end Sample Exclude flag Status 50090-0315-0 50090031500 30 TABLET in 1 BOTTLE (50090-0315-0) 30 tablet 2016-06-29 0000-00-00 No No Current 50090-0315-1 50090031501 20 TABLET in 1 BOTTLE (50090-0315-1) 20 tablet 2016-06-29 0000-00-00 No No Current 50090-0315-3 50090031503 60 TABLET in 1 BOTTLE (50090-0315-3) 60 tablet 2016-06-29 0000-00-00 No No Current 50090-0315-4 50090031504 40 TABLET in 1 BOTTLE (50090-0315-4) 40 tablet 2016-06-29 0000-00-00 No No Current