Nitrous Oxide

Product NDC: 33344-003
11-digit product format: 333440003
Labeler code: 33344
Product ID: 33344-003_a7819865-1852-46db-bbdb-75346d5339ec
Type: HUMAN PRESCRIPTION DRUG
Nonproprietary name: Nitrous Oxide
Dosage form: GAS
Route: RESPIRATORY (INHALATION)
Labeler: Welding & Therapy Service, Inc
Marketing category: UNAPPROVED MEDICAL GAS
Marketing start: 1971-11-01
Marketing end: 0000-00-00
Substance: NITROUS OXIDE
Active strength: 99 L/100L
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 · 6 matching rows.

Dataset, Scope, Product NDC table
Dataset	Scope	Product NDC	Package NDC	Code	Status	Source date
excluded product	product	33344-003		I	Inactivated by FDA	2026-08-10
excluded package	package	33344-003	33344-003-01	I	Inactivated by FDA	2026-08-10
excluded package	package	33344-003	33344-003-02	I	Inactivated by FDA	2026-08-10
excluded package	package	33344-003	33344-003-03	I	Inactivated by FDA	2026-08-10
excluded package	package	33344-003	33344-003-04	I	Inactivated by FDA	2026-08-10
excluded package	package	33344-003	33344-003-05	I	Inactivated by FDA	2026-08-10

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 3 · 132 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	33344-003-04	`d630ba8d3edf…`	`732f749b63fb…`
2025-12-14 17:58 UTC · source 2025-12-05	excluded package	package	33344-003-02	`d630ba8d3edf…`	`732f749b63fb…`
2025-12-14 17:58 UTC · source 2025-12-05	excluded package	package	33344-003-03	`d630ba8d3edf…`	`732f749b63fb…`
2025-12-14 17:58 UTC · source 2025-12-05	excluded package	package	33344-003-05	`d630ba8d3edf…`	`732f749b63fb…`
2025-12-14 17:58 UTC · source 2025-12-05	excluded package	package	33344-003-01	`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	33344-003-04	`f5e01cc5f278…`	`a2eaf40c39c3…`
2025-08-27 00:01 UTC · source 2025-08-26	excluded package	package	33344-003-02	`f5e01cc5f278…`	`a2eaf40c39c3…`
2025-08-27 00:01 UTC · source 2025-08-26	excluded package	package	33344-003-03	`f5e01cc5f278…`	`a2eaf40c39c3…`
2025-08-27 00:01 UTC · source 2025-08-26	excluded package	package	33344-003-05	`f5e01cc5f278…`	`a2eaf40c39c3…`
2025-08-27 00:01 UTC · source 2025-08-26	excluded package	package	33344-003-01	`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	33344-003-04	`2ef7874e63bc…`	`57b86245f4fa…`
2025-04-01 02:39 UTC · source 2025-03-31	excluded package	package	33344-003-02	`2ef7874e63bc…`	`57b86245f4fa…`
2025-04-01 02:39 UTC · source 2025-03-31	excluded package	package	33344-003-03	`2ef7874e63bc…`	`57b86245f4fa…`
2025-04-01 02:39 UTC · source 2025-03-31	excluded package	package	33344-003-05	`2ef7874e63bc…`	`57b86245f4fa…`
2025-04-01 02:39 UTC · source 2025-03-31	excluded package	package	33344-003-01	`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	33344-003-04	`a1b67e2a42f9…`	`c4cf2c586c0d…`
2025-03-28 20:22 UTC · source 2025-03-28	excluded package	package	33344-003-02	`a1b67e2a42f9…`	`c4cf2c586c0d…`
2025-03-28 20:22 UTC · source 2025-03-28	excluded package	package	33344-003-03	`a1b67e2a42f9…`	`c4cf2c586c0d…`
2025-03-28 20:22 UTC · source 2025-03-28	excluded package	package	33344-003-05	`a1b67e2a42f9…`	`c4cf2c586c0d…`
2025-03-28 20:22 UTC · source 2025-03-28	excluded package	package	33344-003-01	`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	33344-003-04	`cfe11265f3b6…`	`090c488252e2…`
2025-03-22 03:12 UTC · source 2025-03-21	excluded package	package	33344-003-02	`cfe11265f3b6…`	`090c488252e2…`
2025-03-22 03:12 UTC · source 2025-03-21	excluded package	package	33344-003-03	`cfe11265f3b6…`	`090c488252e2…`
2025-03-22 03:12 UTC · source 2025-03-21	excluded package	package	33344-003-05	`cfe11265f3b6…`	`090c488252e2…`
2025-03-22 03:12 UTC · source 2025-03-21	excluded package	package	33344-003-01	`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	33344-003-04	`cdf11ea48f46…`	`ba0047e9e063…`
2025-03-10 12:48 UTC · source 2025-03-10	excluded package	package	33344-003-02	`cdf11ea48f46…`	`ba0047e9e063…`
2025-03-10 12:48 UTC · source 2025-03-10	excluded package	package	33344-003-03	`cdf11ea48f46…`	`ba0047e9e063…`
2025-03-10 12:48 UTC · source 2025-03-10	excluded package	package	33344-003-05	`cdf11ea48f46…`	`ba0047e9e063…`
2025-03-10 12:48 UTC · source 2025-03-10	excluded package	package	33344-003-01	`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	33344-003-04	`302b2466d912…`	`e7b80fea0513…`
2025-02-02 03:52 UTC · source 2025-01-31	excluded package	package	33344-003-02	`302b2466d912…`	`e7b80fea0513…`
2025-02-02 03:52 UTC · source 2025-01-31	excluded package	package	33344-003-03	`302b2466d912…`	`e7b80fea0513…`
2025-02-02 03:52 UTC · source 2025-01-31	excluded package	package	33344-003-05	`302b2466d912…`	`e7b80fea0513…`
2025-02-02 03:52 UTC · source 2025-01-31	excluded package	package	33344-003-01	`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	33344-003-04	`ed331223b511…`	`672a5bd82f5f…`
2025-01-20 13:05 UTC · source 2025-01-20	excluded package	package	33344-003-02	`ed331223b511…`	`672a5bd82f5f…`
2025-01-20 13:05 UTC · source 2025-01-20	excluded package	package	33344-003-03	`ed331223b511…`	`672a5bd82f5f…`
2025-01-20 13:05 UTC · source 2025-01-20	excluded package	package	33344-003-05	`ed331223b511…`	`672a5bd82f5f…`
2025-01-20 13:05 UTC · source 2025-01-20	excluded package	package	33344-003-01	`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	33344-003-04	`0efc9e666f02…`	`f202fb6c5f17…`
2025-01-11 03:41 UTC · source 2025-01-10	excluded package	package	33344-003-02	`0efc9e666f02…`	`f202fb6c5f17…`
2025-01-11 03:41 UTC · source 2025-01-10	excluded package	package	33344-003-03	`0efc9e666f02…`	`f202fb6c5f17…`
2025-01-11 03:41 UTC · source 2025-01-10	excluded package	package	33344-003-05	`0efc9e666f02…`	`f202fb6c5f17…`
2025-01-11 03:41 UTC · source 2025-01-10	excluded package	package	33344-003-01	`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	33344-003-04	`ad56d346431e…`	`cc804d4bbf1e…`
2024-11-09 02:27 UTC · source 2024-11-08	excluded package	package	33344-003-02	`ad56d346431e…`	`cc804d4bbf1e…`
2024-11-09 02:27 UTC · source 2024-11-08	excluded package	package	33344-003-03	`ad56d346431e…`	`cc804d4bbf1e…`
2024-11-09 02:27 UTC · source 2024-11-08	excluded package	package	33344-003-05	`ad56d346431e…`	`cc804d4bbf1e…`
2024-11-09 02:27 UTC · source 2024-11-08	excluded package	package	33344-003-01	`ad56d346431e…`	`cc804d4bbf1e…`

FDA-Initiated Inactive NDC Indexing#

NDC, Related label table
NDC	Related label
33344-003-01	Nitrous Oxide Label
33344-003-02	Nitrous Oxide Label
33344-003-03	Nitrous Oxide Label
33344-003-04	Nitrous Oxide Label
33344-003-05	Nitrous Oxide Label

DailyMed Package Descriptions#

Package NDC, Product, Description table
Package NDC	Product	Description	Form	Quantity	SPL version
33344-003-01	Nitrous Oxide	940 L in 1 CYLINDER	GAS	940	6
33344-003-02	Nitrous Oxide	1590 L in 1 CYLINDER	GAS	1590	6
33344-003-03	Nitrous Oxide	5098 L in 1 CYLINDER	GAS	5098	6
33344-003-04	Nitrous Oxide	8156 L in 1 CYLINDER	GAS	8156	6
33344-003-05	Nitrous Oxide	14103 L in 1 CYLINDER	GAS	14103	6

DailyMed Socrata Ingredients#

Ingredient, Type, UNII table
Ingredient	Type	UNII	DailyMed label	SPL version	Uploaded
Nitrous Oxide	ACTIVE INGREDIENT	K50XQU1029	NITROUS OXIDE GAS [WELDING & THERAPY SERVICE, INC]	6
Nitrous Oxide	ACTIVE MOIETY	K50XQU1029	NITROUS OXIDE GAS [WELDING & THERAPY SERVICE, INC]	6

DailyMed Dashboard NDC Coverage#

NDC, Dashboard title, SPL version table
NDC	Dashboard title	SPL version	Validation	Dashboard ZIP
33344-003	NITROUS OXIDE GAS [WELDING & THERAPY SERVICE, INC]	6	Legacy NDC, 5 package rows	20110722_fa835c4c-a45c-4443-a6e5-995bfcccd587.zip

UNII, Preferred term, Registry number table
UNII	Preferred term	Registry number	Matched term
K50XQU1029	NITROUS OXIDE	10024-97-2	NITROUS OXIDE

DailyMed RxNorm Mappings#

RxCUI, RxNorm string, TTY table
RxCUI	RxNorm string	TTY	DailyMed	SPL version
312022	nitrous oxide 99 % Gas for Inhalation	PSN	fa835c4c-a45c-4443-a6e5-995bfcccd587	6
312022	nitrous oxide 99 % Gas for Inhalation	SCD	fa835c4c-a45c-4443-a6e5-995bfcccd587	6

Packages#

Package NDC, 11-digit format, Description table
Package NDC	11-digit format	Description	Units	Status
33344-003-01	33344000301	940 L in 1 CYLINDER	940 l	Historical
33344-003-02	33344000302	1590 L in 1 CYLINDER	1590 l	Historical
33344-003-03	33344000303	5098 L in 1 CYLINDER	5098 l	Historical
33344-003-04	33344000304	8156 L in 1 CYLINDER	8156 l	Historical
33344-003-05	33344000305	14103 L in 1 CYLINDER	14103 l	Historical