Cefadroxil

Product NDC
16714-388
11-digit product format
167140388
Labeler code
16714
Product ID
16714-388_f043b17c-7588-4594-904b-056efaea3446
Type
HUMAN PRESCRIPTION DRUG
Nonproprietary name
Cefadroxil
Dosage form
CAPSULE
Route
ORAL
Labeler
NorthStar Rx LLC
Application
ANDA065352
Marketing category
ANDA
Marketing start
2007-01-25
Substance
CEFADROXIL
Active strength
500 mg/1
Pharmacologic classes
Cephalosporin Antibacterial [EPC], Cephalosporins [CS]
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 1.

Orange Book products#

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

Application-product, Trade name, Ingredient table
Application-productTrade nameIngredientStrengthDosage form / routeTE codesRLD / RSApproval date
A065352-001CEFADROXILCEFADROXIL/CEFADROXIL HEMIHYDRATEEQ 500MG BASECAPSULE / ORALAB2007-01-25

Therapeutic equivalence codes#

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

Application-product, TE code table
Application-productTE code
A065352-001AB

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
CapturedEditionApplication-productTrade nameStrengthDosage form / routeProduct TE source textRLD / RSApproval dateSource SHA-256
2026-02-19 14:30 UTC2026-02A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-25011fe1cb6892…
2025-12-14 10:44 UTC · 2 captures of this ZIP2025-12A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-2531067a03dcf5…
2025-08-23 18:47 UTC2025-08A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-256a471c1ec25d…
2025-03-22 03:13 UTC · 3 captures of this ZIP2025-03A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-25fd3edfee7708…
2025-02-26 10:13 UTC · 3 captures of this ZIP2025-02A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-25b8a1b40f171c…
2025-01-19 17:59 UTC · 7 captures of this ZIP2025-01A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-2503ed91905a0d…
2024-12-13 21:23 UTC · 2 captures of this ZIP2024-12A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-252680178bc6a6…
2024-09-14 05:58 UTC · 2 captures of this ZIP2024-09A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-255bbf6a4d5a75…
2024-11-08 22:44 UTC · 3 captures of this ZIP2024-11A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-25d8e5a09893c0…
2024-10-29 15:01 UTC2024-10A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-25d06236e962d9…
2024-08-13 05:28 UTC · 3 captures of this ZIP2024-08A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-2579d66fd596c7…
2024-07-13 05:37 UTC · 2 captures of this ZIP2024-07A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-25301d65b070ca…
2024-06-18 03:08 UTC · 5 captures of this ZIP2024-06A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-251e350fbaab3a…
2024-05-31 18:47 UTC2024-05A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-258072bd15b7f6…
2022-06-29 02:47 UTC · 2 captures of this ZIP2022-06A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-255c6f7cd8ea54…
2022-04-08 23:34 UTC2022-04A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-255d02ea3f76ae…
2022-04-04 05:41 UTC2022-04A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-254b0b4de00fa7…
2019-12-13 00:20 UTC2019-12A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-2574a2ff9319b5…
2022-03-09 01:35 UTC2022-03A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-25bb7c543d1eb4…
2021-12-28 21:50 UTC2021-12A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-25782e0a99824c…
2021-05-05 16:15 UTC · 3 captures of this ZIP2021-05A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-2587673890dc5c…
2021-03-12 10:30 UTC2021-03A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-255aa47cf7b7d7…
2020-12-22 03:56 UTC2020-12A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-258869cabd3fbd…
2020-11-12 02:37 UTC2020-11A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-25c0c555d07b60…
2019-12-14 00:12 UTC2019-12A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-253f01610625f2…
2019-09-15 20:21 UTC2019-09A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-25b00525d2431f…
2019-07-19 19:46 UTC2019-07A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-25ea99ee380514…
2024-03-16 18:09 UTC · 4 captures of this ZIP2024-03A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-256a51e52b5d6a…
2024-02-18 07:12 UTC2024-02A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-251c564ffb4f44…
2023-12-20 04:57 UTC2023-12A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-25ea1830bbd6c7…
2023-11-28 05:40 UTC · 2 captures of this ZIP2023-11A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-25a72a2bbeb626…
2023-10-25 00:34 UTC · 2 captures of this ZIP2023-10A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-259b2671bbb829…
2023-07-15 15:27 UTC · 2 captures of this ZIP2023-07A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-25a67488948f0b…
2023-06-13 01:57 UTC · 3 captures of this ZIP2023-06A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-253f0d92c62455…
2023-05-13 08:27 UTC2023-05A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-25053a50430f4f…
2023-01-26 05:58 UTC2023-01A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-253bdfa0b2c4d7…
2022-11-12 20:34 UTC · 5 captures of this ZIP2022-11A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-253a93d1ddd44b…
2022-10-28 04:53 UTC2022-10A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-25f41ea6bd6efb…
2022-09-29 23:25 UTC2022-09A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-25e64feba35796…
2022-07-09 03:26 UTC · 3 captures of this ZIP2022-07A065352-001CEFADROXILEQ 500MG BASECAPSULE / ORALAB2007-01-25cb3db0bc1861…

Observed Orange Book normalized TE history#

Normalized TE history page 1 of 2 · 41 observed states.

Captured, Edition, Application-product table
CapturedEditionApplication-productTE codeOrderSource SHA-256
2026-02-19 14:30 UTC2026-02A065352-001AB1011fe1cb6892…
2025-12-14 10:44 UTC · 2 captures of this ZIP2025-12A065352-001AB131067a03dcf5…
2025-08-23 18:47 UTC2025-08A065352-001AB16a471c1ec25d…
2025-03-22 03:13 UTC · 3 captures of this ZIP2025-03A065352-001AB1fd3edfee7708…
2025-02-26 10:13 UTC · 3 captures of this ZIP2025-02A065352-001AB1b8a1b40f171c…
2025-01-19 17:59 UTC · 7 captures of this ZIP2025-01A065352-001AB103ed91905a0d…
2024-12-13 21:23 UTC · 2 captures of this ZIP2024-12A065352-001AB12680178bc6a6…
2024-09-14 05:58 UTC · 2 captures of this ZIP2024-09A065352-001AB15bbf6a4d5a75…
2024-11-08 22:44 UTC · 3 captures of this ZIP2024-11A065352-001AB1d8e5a09893c0…
2024-10-29 15:01 UTC2024-10A065352-001AB1d06236e962d9…
2024-08-13 05:28 UTC · 3 captures of this ZIP2024-08A065352-001AB179d66fd596c7…
2024-07-13 05:37 UTC · 2 captures of this ZIP2024-07A065352-001AB1301d65b070ca…
2024-06-18 03:08 UTC · 5 captures of this ZIP2024-06A065352-001AB11e350fbaab3a…
2024-05-31 18:47 UTC2024-05A065352-001AB18072bd15b7f6…
2022-06-29 02:47 UTC · 2 captures of this ZIP2022-06A065352-001AB15c6f7cd8ea54…
2022-04-08 23:34 UTC2022-04A065352-001AB15d02ea3f76ae…
2022-04-04 05:41 UTC2022-04A065352-001AB14b0b4de00fa7…
2019-12-13 00:20 UTC2019-12A065352-001AB174a2ff9319b5…
2022-03-09 01:35 UTC2022-03A065352-001AB1bb7c543d1eb4…
2021-12-28 21:50 UTC2021-12A065352-001AB1782e0a99824c…
2021-05-05 16:15 UTC · 3 captures of this ZIP2021-05A065352-001AB187673890dc5c…
2021-03-12 10:30 UTC2021-03A065352-001AB15aa47cf7b7d7…
2020-12-22 03:56 UTC2020-12A065352-001AB18869cabd3fbd…
2020-11-12 02:37 UTC2020-11A065352-001AB1c0c555d07b60…
2019-12-14 00:12 UTC2019-12A065352-001AB13f01610625f2…
2019-09-15 20:21 UTC2019-09A065352-001AB1b00525d2431f…
2019-07-19 19:46 UTC2019-07A065352-001AB1ea99ee380514…
2024-03-16 18:09 UTC · 4 captures of this ZIP2024-03A065352-001AB16a51e52b5d6a…
2024-02-18 07:12 UTC2024-02A065352-001AB11c564ffb4f44…
2023-12-20 04:57 UTC2023-12A065352-001AB1ea1830bbd6c7…
2023-11-28 05:40 UTC · 2 captures of this ZIP2023-11A065352-001AB1a72a2bbeb626…
2023-10-25 00:34 UTC · 2 captures of this ZIP2023-10A065352-001AB19b2671bbb829…
2023-07-15 15:27 UTC · 2 captures of this ZIP2023-07A065352-001AB1a67488948f0b…
2023-06-13 01:57 UTC · 3 captures of this ZIP2023-06A065352-001AB13f0d92c62455…
2023-05-13 08:27 UTC2023-05A065352-001AB1053a50430f4f…
2023-01-26 05:58 UTC2023-01A065352-001AB13bdfa0b2c4d7…
2022-11-12 20:34 UTC · 5 captures of this ZIP2022-11A065352-001AB13a93d1ddd44b…
2022-10-28 04:53 UTC2022-10A065352-001AB1f41ea6bd6efb…
2022-09-29 23:25 UTC2022-09A065352-001AB1e64feba35796…
2022-07-09 03:26 UTC · 3 captures of this ZIP2022-07A065352-001AB1cb3db0bc1861…

Additional Listing Data#

Finished product
Yes
Brand name base
Cefadroxil
Listing expiration
2026-12-31

Active Ingredients#

Ingredient, Strength table
IngredientStrength
CEFADROXIL500 mg/1

Harmonized UNII identifiers#

UNII identifiers page 1 of 1 · 1 matching rows.

Identifier, FDA.report destination table
IdentifierFDA.report destination
280111G160Internal UNII lookup

Harmonized RxCUI identifiers#

RxCUI identifiers page 1 of 1 · 1 matching rows.

Identifier, FDA.report destination table
IdentifierFDA.report destination
309049Internal RxNorm lookup

Harmonized SPL set identifiers#

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

Identifier, FDA.report destination table
IdentifierFDA.report destination
17123057-58c7-401a-b87d-8c4c0764bbf6Available on FDA.report

DailyMed Product Concepts#

Product concept, Relation, Version table
Product conceptRelationVersionEffective
560bed03-0257-a1db-0638-2c46fc35054cProduct name220170824
34f1b9ee-0673-df8c-ddae-36eaf4c48382Product name120140508
3793572a-4958-68b2-f923-8cf695ec1cc1Product name120140508

DailyMed Package Descriptions#

Package NDC, Product, Description table
Package NDCProductDescriptionFormQuantityStrengthSPL version
16714-388-01Cefadroxil50 in 1 BOTTLECAPSULE507
16714-388-02Cefadroxil100 in 1 BOTTLECAPSULE1007

DailyMed Billing Units#

Package NDC, Billing unit, Product NDC table
Package NDCBilling unitProduct NDCDailyMed indexing SPLSPL versionEffective
16714-388-01EA - Each16714-388f4f78b8b-72ff-4951-8ff4-6402a34706b212013-03-03
16714-388-02EA - Each16714-38881177447-e096-4e34-9434-8f6493c7f32e12013-03-03

DailyMed Socrata Ingredients#

Ingredient, Type, UNII table
IngredientTypeUNIIDailyMed labelSPL versionUploaded
CEFADROXILACTIVE INGREDIENT280111G160CEFADROXIL CAPSULE [NORTHSTAR RX LLC]2
CEFADROXIL ANHYDROUSACTIVE MOIETYQ525PA8JJBCEFADROXIL CAPSULE [NORTHSTAR RX LLC]2
D&C RED NO. 28INACTIVE INGREDIENT767IP0Y5NHCEFADROXIL CAPSULE [NORTHSTAR RX LLC]2
FD&C BLUE NO. 1INACTIVE INGREDIENTH3R47K3TBDCEFADROXIL CAPSULE [NORTHSTAR RX LLC]2
FD&C RED NO. 40INACTIVE INGREDIENTWZB9127XOACEFADROXIL CAPSULE [NORTHSTAR RX LLC]2
FERROSOFERRIC OXIDEINACTIVE INGREDIENTXM0M87F357CEFADROXIL CAPSULE [NORTHSTAR RX LLC]2
GELATININACTIVE INGREDIENT2G86QN327LCEFADROXIL CAPSULE [NORTHSTAR RX LLC]2
LACTOSE MONOHYDRATEINACTIVE INGREDIENTEWQ57Q8I5XCEFADROXIL CAPSULE [NORTHSTAR RX LLC]2
MAGNESIUM STEARATEINACTIVE INGREDIENT70097M6I30CEFADROXIL CAPSULE [NORTHSTAR RX LLC]2
SODIUM LAURYL SULFATEINACTIVE INGREDIENT368GB5141JCEFADROXIL CAPSULE [NORTHSTAR RX LLC]2
TITANIUM DIOXIDEINACTIVE INGREDIENT15FIX9V2JPCEFADROXIL CAPSULE [NORTHSTAR RX LLC]2

DailyMed Dashboard NDC Coverage#

NDC, Dashboard title, SPL version table
NDCDashboard titleSPL versionValidationDashboard ZIP
16714-388CEFADROXIL CAPSULE [NORTHSTAR RX LLC]7Current NDC, Legacy NDC, 2 package rows20240131_17123057-58c7-401a-b87d-8c4c0764bbf6.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 · 19 matching rows.

Brand, Generic, Manufacturer table
BrandGenericManufacturerSPL set IDEffective dateAvailable safety fieldsJoin
CefadroxilCEFADROXILRedpharm Drug4fb524c1-f985-2a8f-e063-6394a90aab7f2026-04-18Warnings, Adverse reactionsExact identifier
application applno (ANDA): 065352
application number: ANDA065352
CefadroxilCEFADROXILPreferred Pharmaceuticals Inc.41bc5f5a-5e1d-4cb6-a795-9f1756a8f0742026-03-24Warnings, Adverse reactionsExact identifier
application applno (ANDA): 065352
application number: ANDA065352
CefadroxilCEFADROXILRedPharm Drug, Inc.97193a92-12ff-cfab-e053-2a95a90a9f142026-01-23Warnings, Adverse reactionsExact identifier
application applno (ANDA): 065352
application number: ANDA065352
CefadroxilCEFADROXILPD-Rx Pharmaceuticals, Inc.ab9cf28c-7c16-4bfa-879d-c360b4d1d5a62025-10-15Warnings, Adverse reactionsExact identifier
application applno (ANDA): 065352
application number: ANDA065352
CEFADROXILCEFADROXILDIRECT RXa7e74b63-9d5c-7baa-e053-2a95a90a98b22025-01-17Warnings, Adverse reactionsExact identifier
application applno (ANDA): 065352
application number: ANDA065352
CefadroxilCEFADROXILDirect_Rx02566385-46f3-255a-e063-6294a90a1d1c2024-06-26Warnings, Adverse reactionsExact identifier
application applno (ANDA): 065352
application number: ANDA065352
CefadroxilCEFADROXILNuCare Pharmaceuticals,Inc.a218d8d3-af90-4599-e053-2995a90a0ede2024-06-20Warnings, Adverse reactionsExact identifier
application applno (ANDA): 065352
application number: ANDA065352
CefadroxilCEFADROXILNuCare Pharmaceuticals,Inc.8bdd68a4-4e2e-0170-e053-2a95a90adb782024-06-18Warnings, Adverse reactionsExact identifier
application applno (ANDA): 065352
application number: ANDA065352
CefadroxilCEFADROXILNuCare Pharmaceuticals,Inc.7278a39f-9de1-c9e2-e053-2a91aa0aea342024-06-10Warnings, Adverse reactionsExact identifier
application applno (ANDA): 065352
application number: ANDA065352
CefadroxilCEFADROXILAdvanced Rx Pharmacy of Tennessee, LLC1a50b564-b00f-58e4-e063-6294a90af2c62024-06-07Warnings, Adverse reactionsExact identifier
application applno (ANDA): 065352
application number: ANDA065352
CefadroxilCEFADROXILNuCare Pharmaceuticals,Inc.16f3dd01-650a-2426-e063-6394a90a1b4b2024-04-25Warnings, Adverse reactionsExact identifier
application applno (ANDA): 065352
application number: ANDA065352
CefadroxilCEFADROXILBryant Ranch Prepack672519a7-11a1-4d8e-b2ca-dc9598c2f1792024-04-03Warnings, Adverse reactionsExact identifier
application applno (ANDA): 065352
application number: ANDA065352
CefadroxilCEFADROXILBryant Ranch Prepack9c3bed82-6df0-4643-944a-a826f7dc018f2024-04-03Warnings, Adverse reactionsExact identifier
application applno (ANDA): 065352
application number: ANDA065352
CefadroxilCEFADROXILBryant Ranch Prepack8cdaac56-b84a-4b6b-b94d-cab15d5961c52024-04-03Warnings, Adverse reactionsExact identifier
application applno (ANDA): 065352
application number: ANDA065352
CefadroxilCEFADROXILA-S Medication Solutions41ab333a-fafb-4647-844e-f3b2a76723cb2024-02-15Warnings, Adverse reactionsExact identifier
application applno (ANDA): 065352
application number: ANDA065352
CefadroxilCEFADROXILAdvanced Rx Pharmacy of Tennessee, LLCec836a53-7ed1-79b9-e053-2a95a90a9c362024-02-09Warnings, Adverse reactionsExact identifier
application applno (ANDA): 065352
application number: ANDA065352
CefadroxilCEFADROXILRising Pharma Holdings, Inc.74c99fd8-16d1-4d2c-9158-42ff5eed2b7c2024-01-30Warnings, Adverse reactionsExact identifier
application applno (ANDA): 065352
application number: ANDA065352
CefadroxilCEFADROXILAurobindo Pharma Limited7bb90096-14d3-400e-94d3-048bff6b12922024-01-30Warnings, Adverse reactionsExact identifier
application applno (ANDA): 065352
application number: ANDA065352
CefadroxilCEFADROXILNorthStar Rx LLC17123057-58c7-401a-b87d-8c4c0764bbf62024-01-30Warnings, Adverse reactionsExact identifier
application applno (ANDA): 065352
application number: ANDA065352
ndc (product): 16714-388

DailyMed RxNorm Mappings#

RxCUI, RxNorm string, TTY table
RxCUIRxNorm stringTTYDailyMedSPL version
309049cefadroxil 500 MG Oral CapsulePSN17123057-58c7-401a-b87d-8c4c0764bbf67
309049cefadroxil 500 MG Oral CapsuleSCD17123057-58c7-401a-b87d-8c4c0764bbf67
309049cefadroxil (as cefadroxil monohydrate) 500 MG Oral CapsuleSY17123057-58c7-401a-b87d-8c4c0764bbf67
309049cefadroxil 500 MG Oral CapsulePSN41ab333a-fafb-4647-844e-f3b2a76723cb5
309049cefadroxil 500 MG Oral CapsuleSCD41ab333a-fafb-4647-844e-f3b2a76723cb5
309049cefadroxil (as cefadroxil monohydrate) 500 MG Oral CapsuleSY41ab333a-fafb-4647-844e-f3b2a76723cb5
309049cefadroxil 500 MG Oral CapsulePSN16f3dd01-650a-2426-e063-6394a90a1b4b1
309049cefadroxil 500 MG Oral CapsulePSN4fb524c1-f985-2a8f-e063-6394a90aab7f1
309049cefadroxil 500 MG Oral CapsulePSNe09261f8-e8e3-89cb-e053-2995a90a0cc01
309049cefadroxil 500 MG Oral CapsuleSCD16f3dd01-650a-2426-e063-6394a90a1b4b1
309049cefadroxil 500 MG Oral CapsuleSCD4fb524c1-f985-2a8f-e063-6394a90aab7f1
309049cefadroxil 500 MG Oral CapsuleSCDe09261f8-e8e3-89cb-e053-2995a90a0cc01
309049cefadroxil (as cefadroxil monohydrate) 500 MG Oral CapsuleSY16f3dd01-650a-2426-e063-6394a90a1b4b1
309049cefadroxil (as cefadroxil monohydrate) 500 MG Oral CapsuleSY4fb524c1-f985-2a8f-e063-6394a90aab7f1
309049cefadroxil (as cefadroxil monohydrate) 500 MG Oral CapsuleSYe09261f8-e8e3-89cb-e053-2995a90a0cc01

Packages#

Package NDC, 11-digit format, Description table
Package NDC11-digit formatDescriptionUnitsMarketing startMarketing endSampleExclude flagStatus
16714-388-011671403880150 CAPSULE in 1 BOTTLE (16714-388-01) 50 capsule2007-01-250000-00-00NoNoCurrent
16714-388-0216714038802100 CAPSULE in 1 BOTTLE (16714-388-02) 100 capsule2007-01-250000-00-00NoNoCurrent