Primidone

Product NDC
0603-5372
11-digit product format
006035372
Labeler code
0603
Product ID
0603-5372_1c33caad-ce65-4bde-a5cd-cada812bfbc5
Type
HUMAN PRESCRIPTION DRUG
Nonproprietary name
primidone
Dosage form
TABLET
Route
ORAL
Labeler
Par Pharmaceutical
Application
ANDA040586
Marketing category
ANDA
Marketing start
2005-02-24
Marketing end
2021-09-30
Substance
PRIMIDONE
Active strength
250 mg/1
Pharmacologic classes
Anti-epileptic Agent [EPC],Decreased Central Nervous System Disorganized Electrical Activity [PE]
NDC exclude flag
No
Listing certified through
0000-00-00
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
DatasetScopeProduct NDCPackage NDCCodeStatusReporting periodSource date
excluded productproduct0603-5372DDiscontinued by firm2026-08-17
excluded packagepackage0603-53720603-5372-21DDiscontinued by firm2026-08-17
excluded packagepackage0603-53720603-5372-28DDiscontinued by firm2026-08-17

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 1 · 36 matching rows.

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

Captured / source date, Dataset, Scope table
Captured / source dateDatasetScopePackage NDCSnapshotSource SHA-256
2025-12-14 17:58 UTC · source 2025-12-05excluded productproductd630ba8d3edf…732f749b63fb…
2025-12-14 17:58 UTC · source 2025-12-05excluded packagepackage0603-5372-28d630ba8d3edf…732f749b63fb…
2025-12-14 17:58 UTC · source 2025-12-05excluded packagepackage0603-5372-21d630ba8d3edf…732f749b63fb…
2025-08-27 00:01 UTC · source 2025-08-26excluded productproductf5e01cc5f278…a2eaf40c39c3…
2025-08-27 00:01 UTC · source 2025-08-26excluded packagepackage0603-5372-28f5e01cc5f278…a2eaf40c39c3…
2025-08-27 00:01 UTC · source 2025-08-26excluded packagepackage0603-5372-21f5e01cc5f278…a2eaf40c39c3…
2025-04-01 02:39 UTC · source 2025-03-31excluded productproduct2ef7874e63bc…57b86245f4fa…
2025-04-01 02:39 UTC · source 2025-03-31excluded packagepackage0603-5372-282ef7874e63bc…57b86245f4fa…
2025-04-01 02:39 UTC · source 2025-03-31excluded packagepackage0603-5372-212ef7874e63bc…57b86245f4fa…
2025-03-28 20:22 UTC · source 2025-03-28excluded productproducta1b67e2a42f9…c4cf2c586c0d…
2025-03-28 20:22 UTC · source 2025-03-28excluded packagepackage0603-5372-28a1b67e2a42f9…c4cf2c586c0d…
2025-03-28 20:22 UTC · source 2025-03-28excluded packagepackage0603-5372-21a1b67e2a42f9…c4cf2c586c0d…
2025-03-22 03:12 UTC · source 2025-03-21excluded productproductcfe11265f3b6…090c488252e2…
2025-03-22 03:12 UTC · source 2025-03-21excluded packagepackage0603-5372-28cfe11265f3b6…090c488252e2…
2025-03-22 03:12 UTC · source 2025-03-21excluded packagepackage0603-5372-21cfe11265f3b6…090c488252e2…
2025-03-10 12:48 UTC · source 2025-03-10excluded productproductcdf11ea48f46…ba0047e9e063…
2025-03-10 12:48 UTC · source 2025-03-10excluded packagepackage0603-5372-28cdf11ea48f46…ba0047e9e063…
2025-03-10 12:48 UTC · source 2025-03-10excluded packagepackage0603-5372-21cdf11ea48f46…ba0047e9e063…
2025-02-02 03:52 UTC · source 2025-01-31excluded productproduct302b2466d912…e7b80fea0513…
2025-02-02 03:52 UTC · source 2025-01-31excluded packagepackage0603-5372-28302b2466d912…e7b80fea0513…
2025-02-02 03:52 UTC · source 2025-01-31excluded packagepackage0603-5372-21302b2466d912…e7b80fea0513…
2025-01-20 13:05 UTC · source 2025-01-20excluded productproducted331223b511…672a5bd82f5f…
2025-01-20 13:05 UTC · source 2025-01-20excluded packagepackage0603-5372-28ed331223b511…672a5bd82f5f…
2025-01-20 13:05 UTC · source 2025-01-20excluded packagepackage0603-5372-21ed331223b511…672a5bd82f5f…
2025-01-11 03:41 UTC · source 2025-01-10excluded productproduct0efc9e666f02…f202fb6c5f17…
2025-01-11 03:41 UTC · source 2025-01-10excluded packagepackage0603-5372-280efc9e666f02…f202fb6c5f17…
2025-01-11 03:41 UTC · source 2025-01-10excluded packagepackage0603-5372-210efc9e666f02…f202fb6c5f17…
2024-11-09 02:27 UTC · source 2024-11-08excluded productproductad56d346431e…cc804d4bbf1e…
2024-11-09 02:27 UTC · source 2024-11-08excluded packagepackage0603-5372-28ad56d346431e…cc804d4bbf1e…
2024-11-09 02:27 UTC · source 2024-11-08excluded packagepackage0603-5372-21ad56d346431e…cc804d4bbf1e…
2024-10-04 04:10 UTC · source 2024-10-03excluded productproduct367a005e9d99…383a685ebd0f…
2024-10-04 04:10 UTC · source 2024-10-03excluded packagepackage0603-5372-28367a005e9d99…383a685ebd0f…
2024-10-04 04:10 UTC · source 2024-10-03excluded packagepackage0603-5372-21367a005e9d99…383a685ebd0f…
2024-07-10 04:00 UTC · source 2024-07-09excluded productproduct557ba5c1ecfa…9c80585c8c6e…
2024-07-10 04:00 UTC · source 2024-07-09excluded packagepackage0603-5372-28557ba5c1ecfa…9c80585c8c6e…
2024-07-10 04:00 UTC · source 2024-07-09excluded packagepackage0603-5372-21557ba5c1ecfa…9c80585c8c6e…

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

Orange Book products#

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

Application-product, Trade name, Ingredient table
Application-productTrade nameIngredientStrengthDosage form / routeTE codesRLD / RSApproval date
A040586-001PRIMIDONEPRIMIDONE50MGTABLET / ORALAB2005-02-24
A040586-002PRIMIDONEPRIMIDONE250MGTABLET / ORALAB2005-02-24

Therapeutic equivalence codes#

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

Application-product, TE code table
Application-productTE code
A040586-001AB
A040586-002AB

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 · 84 observed states.

Captured, Edition, Application-product table
CapturedEditionApplication-productTrade nameStrengthDosage form / routeProduct TE source textRLD / RSApproval dateSource SHA-256
2026-08-18 06:07:402026-07A040586-001PRIMIDONE50MGTABLET / ORALAB2005-02-24caaa826d4ba7…
2026-08-18 06:07:402026-07A040586-002PRIMIDONE250MGTABLET / ORALAB2005-02-24caaa826d4ba7…
2026-02-19 14:30 UTC2026-02A040586-001PRIMIDONE50MGTABLET / ORALAB2005-02-24011fe1cb6892…
2026-02-19 14:30 UTC2026-02A040586-002PRIMIDONE250MGTABLET / ORALAB2005-02-24011fe1cb6892…
2025-12-14 10:44 UTC · 2 captures of this ZIP2025-12A040586-001PRIMIDONE50MGTABLET / ORALAB2005-02-2431067a03dcf5…
2025-12-14 10:44 UTC · 2 captures of this ZIP2025-12A040586-002PRIMIDONE250MGTABLET / ORALAB2005-02-2431067a03dcf5…
2025-08-23 18:47 UTC2025-08A040586-001PRIMIDONE50MGTABLET / ORALAB2005-02-246a471c1ec25d…
2025-08-23 18:47 UTC2025-08A040586-002PRIMIDONE250MGTABLET / ORALAB2005-02-246a471c1ec25d…
2025-03-22 03:13 UTC · 3 captures of this ZIP2025-03A040586-001PRIMIDONE50MGTABLET / ORALAB2005-02-24fd3edfee7708…
2025-03-22 03:13 UTC · 3 captures of this ZIP2025-03A040586-002PRIMIDONE250MGTABLET / ORALAB2005-02-24fd3edfee7708…
2025-02-26 10:13 UTC · 3 captures of this ZIP2025-02A040586-001PRIMIDONE50MGTABLET / ORALAB2005-02-24b8a1b40f171c…
2025-02-26 10:13 UTC · 3 captures of this ZIP2025-02A040586-002PRIMIDONE250MGTABLET / ORALAB2005-02-24b8a1b40f171c…
2025-01-19 17:59 UTC · 7 captures of this ZIP2025-01A040586-001PRIMIDONE50MGTABLET / ORALAB2005-02-2403ed91905a0d…
2025-01-19 17:59 UTC · 7 captures of this ZIP2025-01A040586-002PRIMIDONE250MGTABLET / ORALAB2005-02-2403ed91905a0d…
2024-12-13 21:23 UTC · 2 captures of this ZIP2024-12A040586-001PRIMIDONE50MGTABLET / ORALAB2005-02-242680178bc6a6…
2024-12-13 21:23 UTC · 2 captures of this ZIP2024-12A040586-002PRIMIDONE250MGTABLET / ORALAB2005-02-242680178bc6a6…
2024-09-14 05:58 UTC · 2 captures of this ZIP2024-09A040586-001PRIMIDONE50MGTABLET / ORALAB2005-02-245bbf6a4d5a75…
2024-09-14 05:58 UTC · 2 captures of this ZIP2024-09A040586-002PRIMIDONE250MGTABLET / ORALAB2005-02-245bbf6a4d5a75…
2024-11-08 22:44 UTC · 3 captures of this ZIP2024-11A040586-001PRIMIDONE50MGTABLET / ORALAB2005-02-24d8e5a09893c0…
2024-11-08 22:44 UTC · 3 captures of this ZIP2024-11A040586-002PRIMIDONE250MGTABLET / ORALAB2005-02-24d8e5a09893c0…
2024-10-29 15:01 UTC2024-10A040586-001PRIMIDONE50MGTABLET / ORALAB2005-02-24d06236e962d9…
2024-10-29 15:01 UTC2024-10A040586-002PRIMIDONE250MGTABLET / ORALAB2005-02-24d06236e962d9…
2024-08-13 05:28 UTC · 3 captures of this ZIP2024-08A040586-001PRIMIDONE50MGTABLET / ORALAB2005-02-2479d66fd596c7…
2024-08-13 05:28 UTC · 3 captures of this ZIP2024-08A040586-002PRIMIDONE250MGTABLET / ORALAB2005-02-2479d66fd596c7…
2024-07-13 05:37 UTC · 2 captures of this ZIP2024-07A040586-001PRIMIDONE50MGTABLET / ORALAB2005-02-24301d65b070ca…
2024-07-13 05:37 UTC · 2 captures of this ZIP2024-07A040586-002PRIMIDONE250MGTABLET / ORALAB2005-02-24301d65b070ca…
2024-06-18 03:08 UTC · 5 captures of this ZIP2024-06A040586-001PRIMIDONE50MGTABLET / ORALAB2005-02-241e350fbaab3a…
2024-06-18 03:08 UTC · 5 captures of this ZIP2024-06A040586-002PRIMIDONE250MGTABLET / ORALAB2005-02-241e350fbaab3a…
2024-05-31 18:47 UTC2024-05A040586-001PRIMIDONE50MGTABLET / ORALAB2005-02-248072bd15b7f6…
2024-05-31 18:47 UTC2024-05A040586-002PRIMIDONE250MGTABLET / ORALAB2005-02-248072bd15b7f6…
2022-06-29 02:47 UTC · 2 captures of this ZIP2022-06A040586-001PRIMIDONE50MGTABLET / ORALAB2005-02-245c6f7cd8ea54…
2022-06-29 02:47 UTC · 2 captures of this ZIP2022-06A040586-002PRIMIDONE250MGTABLET / ORALAB2005-02-245c6f7cd8ea54…
2022-04-08 23:34 UTC2022-04A040586-001PRIMIDONE50MGTABLET / ORALAB2005-02-245d02ea3f76ae…
2022-04-08 23:34 UTC2022-04A040586-002PRIMIDONE250MGTABLET / ORALAB2005-02-245d02ea3f76ae…
2022-04-04 05:41 UTC2022-04A040586-001PRIMIDONE50MGTABLET / ORALAB2005-02-244b0b4de00fa7…
2022-04-04 05:41 UTC2022-04A040586-002PRIMIDONE250MGTABLET / ORALAB2005-02-244b0b4de00fa7…
2019-12-13 00:20 UTC2019-12A040586-001PRIMIDONE50MGTABLET / ORALAB2005-02-2474a2ff9319b5…
2019-12-13 00:20 UTC2019-12A040586-002PRIMIDONE250MGTABLET / ORALAB2005-02-2474a2ff9319b5…
2022-03-09 01:35 UTC2022-03A040586-001PRIMIDONE50MGTABLET / ORALAB2005-02-24bb7c543d1eb4…
2022-03-09 01:35 UTC2022-03A040586-002PRIMIDONE250MGTABLET / ORALAB2005-02-24bb7c543d1eb4…

Observed Orange Book normalized TE history#

Normalized TE history page 1 of 3 · 84 observed states.

Captured, Edition, Application-product table
CapturedEditionApplication-productTE codeOrderSource SHA-256
2026-08-18 06:07:402026-07A040586-001AB1caaa826d4ba7…
2026-08-18 06:07:402026-07A040586-002AB1caaa826d4ba7…
2026-02-19 14:30 UTC2026-02A040586-001AB1011fe1cb6892…
2026-02-19 14:30 UTC2026-02A040586-002AB1011fe1cb6892…
2025-12-14 10:44 UTC · 2 captures of this ZIP2025-12A040586-001AB131067a03dcf5…
2025-12-14 10:44 UTC · 2 captures of this ZIP2025-12A040586-002AB131067a03dcf5…
2025-08-23 18:47 UTC2025-08A040586-001AB16a471c1ec25d…
2025-08-23 18:47 UTC2025-08A040586-002AB16a471c1ec25d…
2025-03-22 03:13 UTC · 3 captures of this ZIP2025-03A040586-001AB1fd3edfee7708…
2025-03-22 03:13 UTC · 3 captures of this ZIP2025-03A040586-002AB1fd3edfee7708…
2025-02-26 10:13 UTC · 3 captures of this ZIP2025-02A040586-001AB1b8a1b40f171c…
2025-02-26 10:13 UTC · 3 captures of this ZIP2025-02A040586-002AB1b8a1b40f171c…
2025-01-19 17:59 UTC · 7 captures of this ZIP2025-01A040586-001AB103ed91905a0d…
2025-01-19 17:59 UTC · 7 captures of this ZIP2025-01A040586-002AB103ed91905a0d…
2024-12-13 21:23 UTC · 2 captures of this ZIP2024-12A040586-001AB12680178bc6a6…
2024-12-13 21:23 UTC · 2 captures of this ZIP2024-12A040586-002AB12680178bc6a6…
2024-09-14 05:58 UTC · 2 captures of this ZIP2024-09A040586-001AB15bbf6a4d5a75…
2024-09-14 05:58 UTC · 2 captures of this ZIP2024-09A040586-002AB15bbf6a4d5a75…
2024-11-08 22:44 UTC · 3 captures of this ZIP2024-11A040586-001AB1d8e5a09893c0…
2024-11-08 22:44 UTC · 3 captures of this ZIP2024-11A040586-002AB1d8e5a09893c0…
2024-10-29 15:01 UTC2024-10A040586-001AB1d06236e962d9…
2024-10-29 15:01 UTC2024-10A040586-002AB1d06236e962d9…
2024-08-13 05:28 UTC · 3 captures of this ZIP2024-08A040586-001AB179d66fd596c7…
2024-08-13 05:28 UTC · 3 captures of this ZIP2024-08A040586-002AB179d66fd596c7…
2024-07-13 05:37 UTC · 2 captures of this ZIP2024-07A040586-001AB1301d65b070ca…
2024-07-13 05:37 UTC · 2 captures of this ZIP2024-07A040586-002AB1301d65b070ca…
2024-06-18 03:08 UTC · 5 captures of this ZIP2024-06A040586-001AB11e350fbaab3a…
2024-06-18 03:08 UTC · 5 captures of this ZIP2024-06A040586-002AB11e350fbaab3a…
2024-05-31 18:47 UTC2024-05A040586-001AB18072bd15b7f6…
2024-05-31 18:47 UTC2024-05A040586-002AB18072bd15b7f6…
2022-06-29 02:47 UTC · 2 captures of this ZIP2022-06A040586-001AB15c6f7cd8ea54…
2022-06-29 02:47 UTC · 2 captures of this ZIP2022-06A040586-002AB15c6f7cd8ea54…
2022-04-08 23:34 UTC2022-04A040586-001AB15d02ea3f76ae…
2022-04-08 23:34 UTC2022-04A040586-002AB15d02ea3f76ae…
2022-04-04 05:41 UTC2022-04A040586-001AB14b0b4de00fa7…
2022-04-04 05:41 UTC2022-04A040586-002AB14b0b4de00fa7…
2019-12-13 00:20 UTC2019-12A040586-001AB174a2ff9319b5…
2019-12-13 00:20 UTC2019-12A040586-002AB174a2ff9319b5…
2022-03-09 01:35 UTC2022-03A040586-001AB1bb7c543d1eb4…
2022-03-09 01:35 UTC2022-03A040586-002AB1bb7c543d1eb4…

DailyMed Billing Units#

Package NDC, Billing unit, Product NDC table
Package NDCBilling unitProduct NDCDailyMed indexing SPLSPL versionEffective
0603-5372-21EA - Each0603-537278eb98eb-7507-4579-8ed0-b6615ce4f25e12012-07-24
0603-5372-28EA - Each0603-53727d6b7ff8-0a75-456c-97fc-467ef751d62612012-07-24

DailyMed Socrata Ingredients#

Ingredient, Type, UNII table
IngredientTypeUNIIDailyMed labelSPL versionUploaded
PRIMIDONEACTIVE INGREDIENT13AFD7670QPRIMIDONE TABLET [QUALITEST PHARMACEUTICALS]6
PRIMIDONEACTIVE MOIETY13AFD7670QPRIMIDONE TABLET [QUALITEST PHARMACEUTICALS]6
CELLULOSE, MICROCRYSTALLINEINACTIVE INGREDIENTOP1R32D61UPRIMIDONE TABLET [QUALITEST PHARMACEUTICALS]6
D&C YELLOW NO. 10INACTIVE INGREDIENT35SW5USQ3GPRIMIDONE TABLET [QUALITEST PHARMACEUTICALS]6
FD&C YELLOW NO. 5INACTIVE INGREDIENTI753WB2F1MPRIMIDONE TABLET [QUALITEST PHARMACEUTICALS]6
HYPROMELLOSESINACTIVE INGREDIENT3NXW29V3WOPRIMIDONE TABLET [QUALITEST PHARMACEUTICALS]6
LACTOSE MONOHYDRATEINACTIVE INGREDIENTEWQ57Q8I5XPRIMIDONE TABLET [QUALITEST PHARMACEUTICALS]6
MAGNESIUM STEARATEINACTIVE INGREDIENT70097M6I30PRIMIDONE TABLET [QUALITEST PHARMACEUTICALS]6
SODIUM LAURYL SULFATEINACTIVE INGREDIENT368GB5141JPRIMIDONE TABLET [QUALITEST PHARMACEUTICALS]6
SODIUM STARCH GLYCOLATE TYPE A POTATOINACTIVE INGREDIENT5856J3G2A2PRIMIDONE TABLET [QUALITEST PHARMACEUTICALS]6
TALCINACTIVE INGREDIENT7SEV7J4R1UPRIMIDONE TABLET [QUALITEST PHARMACEUTICALS]6

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 · 8 matching rows.

Brand, Generic, Manufacturer table
BrandGenericManufacturerSPL set IDEffective dateAvailable safety fieldsJoin
PrimidonePRIMIDONEProficient Rx LPdb761e34-8573-4f96-872c-e851b3004e5e2026-01-01Warnings, Adverse reactionsExact identifier
application applno (ANDA): 040586
application number: ANDA040586
PrimidonePRIMIDONEPD-Rx Pharmaceuticals, Inc.6046e4e9-0c1e-4d1f-85fa-d2ce25c5dc342025-10-20Warnings, Adverse reactionsExact identifier
application applno (ANDA): 040586
application number: ANDA040586
PrimidonePRIMIDONEPD-Rx Pharmaceuticals, Inc.0193c0a4-f593-609c-e063-6294a90aaa682025-06-10Warnings, Adverse reactionsExact identifier
application applno (ANDA): 040586
application number: ANDA040586
PRIMIDONEPRIMIDONEDIRECT RXc20f803c-e965-9dd8-e053-2995a90a92ba2025-01-17Warnings, Adverse reactionsExact identifier
application applno (ANDA): 040586
application number: ANDA040586
PrimidonePRIMIDONEBryant Ranch Prepack5067ff85-07f5-424c-b072-6907891e7b4e2024-05-23Warnings, Adverse reactionsExact identifier
application applno (ANDA): 040586
application number: ANDA040586
PrimidonePRIMIDONEOxford Pharmaceuticals, LLC439096a4-c5d5-4ad8-be9c-238973a3e2902022-04-05Warnings, Adverse reactionsExact identifier
application applno (ANDA): 040586
application number: ANDA040586
PrimidonePRIMIDONEAphena Pharma Solutions - Tennessee, LLC91de277e-34b8-4ee1-8846-f02aea6260892021-10-15Warnings, Adverse reactionsExact identifier
application applno (ANDA): 040586
application number: ANDA040586
PrimidonePRIMIDONEAphena Pharma Solutions - Tennessee, LLC70b93341-ce93-4be5-a782-87c1a26129d72021-08-19Warnings, Adverse reactionsExact identifier
application applno (ANDA): 040586
application number: ANDA040586

Packages#

Package NDC, 11-digit format, Description table
Package NDC11-digit formatDescriptionUnitsMarketing startMarketing endSampleExclude flagStatus
0603-5372-2100603537221100 TABLET in 1 BOTTLE, PLASTIC (0603-5372-21) 100 tablet2005-02-242021-09-30NoNoCurrent
0603-5372-2800603537228500 TABLET in 1 BOTTLE, PLASTIC (0603-5372-28) 500 tablet2005-02-242021-09-30NoNoCurrent