Chlorzoxazone NDC 0254-2005

NDC codes

FDA NDC Directory

Product NDC (as listed)0254-2005Labeler and product segments. Claims need a package NDC.

Product NDC at billing width00254-2005Add the package segment from the table below.

Package NDCs as listed with the FDA, and the 11-digit 5-4-2 form used on claims. The highlighted digit is the added leading zero.
Package NDC	11-digit (billing)	Package	Copy
0254-2005-01	00254200501	100 TABLET in 1 BOTTLE (0254-2005-01)Marketed from Nov 4, 2020

How the 11-digit form is made: The labeler segment has 4 digits, so one leading zero is added to it (4-4-2 → 5-4-2). Formatting the NDC does not by itself make it billable — the product, package and quantity must match what was dispensed or administered, and payer rules apply. Conversion rules

Product information

Brand name (proprietary): Chlorzoxazone
Generic name (nonproprietary): chlorzoxazone
Active ingredients: Chlorzoxazone — 750 mg/1
Dosage form: Tablet
Route: Oral
Labeler: Par Health USA, LLC
Product type: Prescription drug
Marketing category: ANDA — Abbreviated New Drug Application (generic)Application ANDA 212743
Marketing start: Nov 4, 2020
Listing expires: Dec 31, 2027
Other FDA classes: Centrally-mediated Muscle Relaxation (Physiologic effect)
Identifiers: Product ID 0254-2005_865f5a6c-7cbc-48b6-92c7-55b4e50c8681SPL ID 865f5a6c-7cbc-48b6-92c7-55b4e50c8681SPL set ID 7c5a835d-3754-4c25-a0e2-335b8eceb2d2RxCUI 1088934, 1088936UNII H0DE420U8GUPC 0302542053019, 0302542005018
Pharmacologic class: Muscle Relaxant

Billing references

What Med-Code can say about coding this product, and where each statement comes from. Nothing here is inferred from the name alone.

HCPCS codeNo match

No HCPCS code in Med-Code's directory. Oral products like this are usually dispensed by a pharmacy and billed by NDC.

NDC on a medical claim

N400254200501 followed by a unit qualifier and the quantity

Package 00254-2005-01. Unit qualifiers: F2 (international unit), GR (gram), ME (milligram), ML (milliliter), UN (unit (each)). The qualifier and quantity depend on what was given. About the N4 qualifier

Product label

Current FDA label (SPL), effective Aug 31, 2026.

Indications (excerpt from the label)

INDICATIONS AND USAGE Chlorzoxazone tablets are indicated as an adjunct to rest, physical therapy, and other measures for the relief of discomfort associated with acute, painful musculoskeletal conditions. The mode of action of this drug has not been clearly identified, but may be related to its sedative properties. Chlorzoxazone does not directly relax tense skeletal muscles in man.

Excerpt only. Read the full label for complete information.

Full label on DailyMed (opens in a new tab)

Other NDCs under ANDA 212743

Products listed under the same FDA application: other strengths and forms, and repackagers who relabel the same product.

FDA NDC Directory listings under ANDA 212743
Product	Strength	Form · route	Labeler	Product NDC
Chlorzoxazone	Chlorzoxazone 375 mg/1	TabletOral	Par Health USA, LLC	0254-2053