What is NDC 13811-304?

13811-304 is the product NDC for Phenobarbital, Phenobarbital 16.2 mg/1 tablet, listed with the FDA by Trigen Laboratories, LLC. It has 2 package NDCs, shown above in 10- and 11-digit form.

Trigen Laboratories, LLC, NDC labeler code 13811. The labeler is the company responsible for the label; it may be the manufacturer, a repackager or a distributor.

What other NDCs exist for Phenobarbital?

152 other product NDCs are listed under this name.

Is there a related HCPCS / J-code?

Not in Med-Code's curated HCPCS directory.

Phenobarbital NDC 13811-304 | National Drug Code

NDC codes

FDA NDC Directory

Product NDC (as listed)13811-304Labeler and product segments. Claims need a package NDC.

Product NDC at billing width13811-0304Add 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
13811-304-10	1381103041013811030410	100 TABLET in 1 BOTTLE, PLASTIC (13811-304-10)Marketed from Apr 1, 2025
13811-304-52	1381103045213811030452	1000 TABLET in 1 BOTTLE, PLASTIC (13811-304-52)Marketed from Apr 1, 2025

How the 11-digit form is made: The product segment has 3 digits, so one leading zero is added to it (5-3-2 → 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): Phenobarbital
Generic name (nonproprietary): phenobarbital
Active ingredients: Phenobarbital — 16.2 mg/1
Dosage form: Tablet
Route: Oral
Labeler: Trigen Laboratories, LLCNDC labeler code 13811
Product type: Prescription drug
Marketing category: Unapproved drug (other)
Marketing start: Apr 1, 2025
Listing expires: Dec 31, 2026
DEA schedule: CIV
Identifiers: Product ID 13811-304_e0527225-8681-4a9c-8b5c-2681579f4115SPL ID e0527225-8681-4a9c-8b5c-2681579f4115SPL set ID 5d1f0f48-06d9-4408-b9a2-60d7a09d942fRxCUI 198086, 199164, 199167, 199168UNII YQE403BP4DUPC 0313811304107, 0313811306521, 0313811305104, 0313811305524, 0313811307108, 0373877307528, 0313811306101

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

N413811030410 followed by a unit qualifier and the quantity

Package 13811-0304-10. 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 Sep 22, 2025.

Indications (excerpt from the label)

INDICATIONS AND USAGE 1. Sedative 2. Anticonvulsant – For the treatment of generalized and partial seizures.

Excerpt only. Read the full label for complete information.

Full label on DailyMed (opens in a new tab)

About NDC 13811-304

What is NDC 13811-304?: 13811-304 is the product NDC for Phenobarbital, Phenobarbital 16.2 mg/1 tablet, listed with the FDA by Trigen Laboratories, LLC. It has 2 package NDCs, shown above in 10- and 11-digit form.
What drug is associated with this NDC?: Phenobarbital.
What is the active ingredient?: Phenobarbital.
Who is the labeler?: Trigen Laboratories, LLC, NDC labeler code 13811. The labeler is the company responsible for the label; it may be the manufacturer, a repackager or a distributor.
What other NDCs exist for Phenobarbital?: 152 other product NDCs are listed under this name. See all Phenobarbital NDCs.
Is there a related HCPCS / J-code?: Not in Med-Code's curated HCPCS directory. See Billing references above.

Other finished products listed under the same name: strengths, forms and labelers.

Other Phenobarbital NDCs
Product	Strength	Form · route	Labeler	Product NDC	Package NDCs (11-digit)
Phenobarbital	Phenobarbital 15 mg/1	TabletOral	Chartwell RX, LLC	62135-510	62135-0510-90
Phenobarbital	Phenobarbital 30 mg/1	TabletOral	Chartwell RX, LLC	62135-514	62135-0514-90
Phenobarbital	Phenobarbital 100 mg/1	TabletOral	Chartwell RX, LLC	62135-519	62135-0519-90
Phenobarbital	Phenobarbital 60 mg/1	TabletOral	Chartwell RX, LLC	62135-515	62135-0515-90
Phenobarbital	Phenobarbital 16.2 mg/1	TabletOral	Chartwell RX, LLC	62135-539	62135-0539-90
Phenobarbital	Phenobarbital 32.4 mg/1	TabletOral	Chartwell RX, LLC	62135-554	62135-0554-90
Phenobarbital	Phenobarbital 64.8 mg/1	TabletOral	Chartwell RX, LLC	62135-557	62135-0557-90
Phenobarbital	Phenobarbital 97.2 mg/1	TabletOral	Chartwell RX, LLC	62135-558	62135-0558-90
Phenobarbital	Phenobarbital 32.4 mg/1	TabletOral	REMEDYREPACK INC.	70518-4718	70518-4718-00
Phenobarbital	Phenobarbital 64.8 mg/1	TabletOral	REMEDYREPACK INC.	70518-4717	70518-4717-00

All 153 Phenobarbital NDCs