Flecainide acetate

Product NDC: 43199-056
11-digit product format: 431990056
Labeler code: 43199
Product ID: 43199-056_e86c02fa-73bd-e91a-0000-dd7888c4028b
Type: HUMAN PRESCRIPTION DRUG
Nonproprietary name: Flecainide acetate
Dosage form: TABLET
Route: ORAL
Labeler: County Line Pharmaceuticals, LLC
Application: NDA018830
Marketing category: NDA
Marketing start: 2016-11-04
Marketing end: 0000-00-00
Substance: FLECAINIDE ACETATE
Active strength: 50 mg/1
Pharmacologic classes: Antiarrhythmic [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 · 2 matching rows.

Dataset, Scope, Product NDC table
Dataset	Scope	Product NDC	Package NDC	Code	Status	Reporting period	Source date
excluded product	product	43199-056		D	Discontinued by firm		2026-08-11
excluded package	package	43199-056	43199-056-01	D	Discontinued by firm		2026-08-11

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 · 24 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	43199-056-01	`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	43199-056-01	`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	43199-056-01	`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	43199-056-01	`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	43199-056-01	`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	43199-056-01	`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	43199-056-01	`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	43199-056-01	`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	43199-056-01	`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	43199-056-01	`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	43199-056-01	`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	43199-056-01	`557ba5c1ecfa…`	`9c80585c8c6e…`

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

Orange Book products#

Current product rows page 1 of 1 · 4 matching rows.

Application-product, Trade name, Ingredient table
Application-product	Trade name	Ingredient	Strength	Dosage form / route	RLD / RS	Approval date
N018830-001	TAMBOCOR	FLECAINIDE ACETATE	100MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1985-10-31
N018830-002	TAMBOCOR	FLECAINIDE ACETATE	200MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL		1985-10-31
N018830-003	TAMBOCOR	FLECAINIDE ACETATE	150MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1988-06-03
N018830-004	TAMBOCOR	FLECAINIDE ACETATE	50MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1988-08-23

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 5 · 164 observed states.

Captured, Edition, Application-product table
Captured	Edition	Application-product	Trade name	Strength	Dosage form / route	RLD / RS	Approval date	Source SHA-256
2026-02-19 14:30 UTC	2026-02	N018830-001	TAMBOCOR	100MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1985-10-31	`011fe1cb6892…`
2026-02-19 14:30 UTC	2026-02	N018830-002	TAMBOCOR	200MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL		1985-10-31	`011fe1cb6892…`
2026-02-19 14:30 UTC	2026-02	N018830-003	TAMBOCOR	150MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1988-06-03	`011fe1cb6892…`
2026-02-19 14:30 UTC	2026-02	N018830-004	TAMBOCOR	50MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1988-08-23	`011fe1cb6892…`
2025-12-14 10:44 UTC · 2 captures of this ZIP	2025-12	N018830-001	TAMBOCOR	100MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1985-10-31	`31067a03dcf5…`
2025-12-14 10:44 UTC · 2 captures of this ZIP	2025-12	N018830-002	TAMBOCOR	200MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL		1985-10-31	`31067a03dcf5…`
2025-12-14 10:44 UTC · 2 captures of this ZIP	2025-12	N018830-003	TAMBOCOR	150MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1988-06-03	`31067a03dcf5…`
2025-12-14 10:44 UTC · 2 captures of this ZIP	2025-12	N018830-004	TAMBOCOR	50MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1988-08-23	`31067a03dcf5…`
2025-08-23 18:47 UTC	2025-08	N018830-001	TAMBOCOR	100MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1985-10-31	`6a471c1ec25d…`
2025-08-23 18:47 UTC	2025-08	N018830-002	TAMBOCOR	200MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL		1985-10-31	`6a471c1ec25d…`
2025-08-23 18:47 UTC	2025-08	N018830-003	TAMBOCOR	150MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1988-06-03	`6a471c1ec25d…`
2025-08-23 18:47 UTC	2025-08	N018830-004	TAMBOCOR	50MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1988-08-23	`6a471c1ec25d…`
2025-03-22 03:13 UTC · 3 captures of this ZIP	2025-03	N018830-001	TAMBOCOR	100MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1985-10-31	`fd3edfee7708…`
2025-03-22 03:13 UTC · 3 captures of this ZIP	2025-03	N018830-002	TAMBOCOR	200MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL		1985-10-31	`fd3edfee7708…`
2025-03-22 03:13 UTC · 3 captures of this ZIP	2025-03	N018830-003	TAMBOCOR	150MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1988-06-03	`fd3edfee7708…`
2025-03-22 03:13 UTC · 3 captures of this ZIP	2025-03	N018830-004	TAMBOCOR	50MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1988-08-23	`fd3edfee7708…`
2025-02-26 10:13 UTC · 3 captures of this ZIP	2025-02	N018830-001	TAMBOCOR	100MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1985-10-31	`b8a1b40f171c…`
2025-02-26 10:13 UTC · 3 captures of this ZIP	2025-02	N018830-002	TAMBOCOR	200MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL		1985-10-31	`b8a1b40f171c…`
2025-02-26 10:13 UTC · 3 captures of this ZIP	2025-02	N018830-003	TAMBOCOR	150MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1988-06-03	`b8a1b40f171c…`
2025-02-26 10:13 UTC · 3 captures of this ZIP	2025-02	N018830-004	TAMBOCOR	50MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1988-08-23	`b8a1b40f171c…`
2025-01-19 17:59 UTC · 7 captures of this ZIP	2025-01	N018830-001	TAMBOCOR	100MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1985-10-31	`03ed91905a0d…`
2025-01-19 17:59 UTC · 7 captures of this ZIP	2025-01	N018830-002	TAMBOCOR	200MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL		1985-10-31	`03ed91905a0d…`
2025-01-19 17:59 UTC · 7 captures of this ZIP	2025-01	N018830-003	TAMBOCOR	150MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1988-06-03	`03ed91905a0d…`
2025-01-19 17:59 UTC · 7 captures of this ZIP	2025-01	N018830-004	TAMBOCOR	50MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1988-08-23	`03ed91905a0d…`
2024-12-13 21:23 UTC · 2 captures of this ZIP	2024-12	N018830-001	TAMBOCOR	100MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1985-10-31	`2680178bc6a6…`
2024-12-13 21:23 UTC · 2 captures of this ZIP	2024-12	N018830-002	TAMBOCOR	200MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL		1985-10-31	`2680178bc6a6…`
2024-12-13 21:23 UTC · 2 captures of this ZIP	2024-12	N018830-003	TAMBOCOR	150MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1988-06-03	`2680178bc6a6…`
2024-12-13 21:23 UTC · 2 captures of this ZIP	2024-12	N018830-004	TAMBOCOR	50MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1988-08-23	`2680178bc6a6…`
2024-09-14 05:58 UTC · 2 captures of this ZIP	2024-09	N018830-001	TAMBOCOR	100MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1985-10-31	`5bbf6a4d5a75…`
2024-09-14 05:58 UTC · 2 captures of this ZIP	2024-09	N018830-002	TAMBOCOR	200MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL		1985-10-31	`5bbf6a4d5a75…`
2024-09-14 05:58 UTC · 2 captures of this ZIP	2024-09	N018830-003	TAMBOCOR	150MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1988-06-03	`5bbf6a4d5a75…`
2024-09-14 05:58 UTC · 2 captures of this ZIP	2024-09	N018830-004	TAMBOCOR	50MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1988-08-23	`5bbf6a4d5a75…`
2024-11-08 22:44 UTC · 3 captures of this ZIP	2024-11	N018830-001	TAMBOCOR	100MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1985-10-31	`d8e5a09893c0…`
2024-11-08 22:44 UTC · 3 captures of this ZIP	2024-11	N018830-002	TAMBOCOR	200MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL		1985-10-31	`d8e5a09893c0…`
2024-11-08 22:44 UTC · 3 captures of this ZIP	2024-11	N018830-003	TAMBOCOR	150MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1988-06-03	`d8e5a09893c0…`
2024-11-08 22:44 UTC · 3 captures of this ZIP	2024-11	N018830-004	TAMBOCOR	50MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1988-08-23	`d8e5a09893c0…`
2024-10-29 15:01 UTC	2024-10	N018830-001	TAMBOCOR	100MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1985-10-31	`d06236e962d9…`
2024-10-29 15:01 UTC	2024-10	N018830-002	TAMBOCOR	200MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL		1985-10-31	`d06236e962d9…`
2024-10-29 15:01 UTC	2024-10	N018830-003	TAMBOCOR	150MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1988-06-03	`d06236e962d9…`
2024-10-29 15:01 UTC	2024-10	N018830-004	TAMBOCOR	50MG Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	TABLET / ORAL	RLD	1988-08-23	`d06236e962d9…`

Observed Orange Book normalized TE history#

Captured, Edition, Application-product table
Captured	Edition	Application-product	TE code	Order	Source SHA-256
2019-12-13 00:20 UTC	2019-12	N018830-001	AB	1	`74a2ff9319b5…`
2019-12-13 00:20 UTC	2019-12	N018830-003	AB	1	`74a2ff9319b5…`
2019-12-13 00:20 UTC	2019-12	N018830-004	AB	1	`74a2ff9319b5…`
2020-12-22 03:56 UTC	2020-12	N018830-001	AB	1	`8869cabd3fbd…`
2020-12-22 03:56 UTC	2020-12	N018830-003	AB	1	`8869cabd3fbd…`
2020-12-22 03:56 UTC	2020-12	N018830-004	AB	1	`8869cabd3fbd…`
2020-11-12 02:37 UTC	2020-11	N018830-001	AB	1	`c0c555d07b60…`
2020-11-12 02:37 UTC	2020-11	N018830-003	AB	1	`c0c555d07b60…`
2020-11-12 02:37 UTC	2020-11	N018830-004	AB	1	`c0c555d07b60…`
2019-12-14 00:12 UTC	2019-12	N018830-001	AB	1	`3f01610625f2…`
2019-12-14 00:12 UTC	2019-12	N018830-003	AB	1	`3f01610625f2…`
2019-12-14 00:12 UTC	2019-12	N018830-004	AB	1	`3f01610625f2…`
2019-09-15 20:21 UTC	2019-09	N018830-001	AB	1	`b00525d2431f…`
2019-09-15 20:21 UTC	2019-09	N018830-003	AB	1	`b00525d2431f…`
2019-09-15 20:21 UTC	2019-09	N018830-004	AB	1	`b00525d2431f…`
2019-07-19 19:46 UTC	2019-07	N018830-001	AB	1	`ea99ee380514…`
2019-07-19 19:46 UTC	2019-07	N018830-003	AB	1	`ea99ee380514…`
2019-07-19 19:46 UTC	2019-07	N018830-004	AB	1	`ea99ee380514…`

DailyMed Billing Units#

Package NDC, Billing unit, Product NDC table
Package NDC	Billing unit	Product NDC	DailyMed indexing SPL	SPL version	Effective
43199-056-01	EA - Each	43199-056	eb6d2e9e-1f78-4052-ae17-2b8d2a095bc4	1	2016-12-07

UNII, Preferred term, Registry number table
UNII	Preferred term	Registry number	Matched term
M8U465Q1WQ	FLECAINIDE ACETATE	54143-56-5	FLECAINIDE ACETATE

Title, Manufacturer, Effective date table
Title	Manufacturer	Effective date	Type	Version
Flecainide acetate - County Line Pharmaceuticals, LLC	County Line Pharmaceuticals, LLC	2019-09-01	HUMAN PRESCRIPTION DRUG LABEL	6