What is NDC 23155-861?

23155-861 is the product NDC for Flucytosine, Flucytosine 500 mg/1 capsule, listed with the FDA by Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc.. It has 2 package NDCs, shown above in 10- and 11-digit form.

Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc., NDC labeler code 23155. The labeler is the company responsible for the label; it may be the manufacturer, a repackager or a distributor.

What other NDCs exist for Flucytosine?

16 other product NDCs are listed under this name.

Is there a related HCPCS / J-code?

Not in Med-Code's curated HCPCS directory.

Flucytosine NDC 23155-861 | National Drug Code

NDC codes

FDA NDC Directory

Product NDC (as listed)23155-861Labeler and product segments. Claims need a package NDC.

Product NDC at billing width23155-0861Add 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
23155-861-01	2315508610123155086101	100 CAPSULE in 1 BOTTLE (23155-861-01)Marketed from Jun 25, 2023
23155-861-03	2315508610323155086103	30 CAPSULE in 1 BOTTLE (23155-861-03)Marketed from Jun 25, 2023

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): Flucytosine
Generic name (nonproprietary): flucytosine
Active ingredients: Flucytosine — 500 mg/1
Dosage form: Capsule
Route: Oral
Labeler: Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc.NDC labeler code 23155
Product type: Prescription drug
Marketing category: ANDA — Abbreviated New Drug Application (generic)Application ANDA 212632
Marketing start: Jun 25, 2023
Listing expires: Dec 31, 2027
Other FDA classes: Nucleoside Analog (EXT)
Identifiers: Product ID 23155-861_7d6257c5-ed02-4f43-ba99-dece1e71fce3SPL ID 7d6257c5-ed02-4f43-ba99-dece1e71fce3SPL set ID f4c63d98-f03f-43f5-8c1f-e9ac6087312bRxCUI 197702, 197703UNII D83282DT06UPC 0323155861013
Pharmacologic class: Nucleoside Analog Antifungal

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

N423155086101 followed by a unit qualifier and the quantity

Package 23155-0861-01. 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 Nov 7, 2025. This label includes a boxed warning.

Indications (excerpt from the label)

INDICATIONS AND USAGE Flucytosine capsules are indicated only in the treatment of serious infections caused by susceptible strains of Candida and/or Cryptococcus . Candida: Septicemia, endocarditis and urinary system infections have been effectively treated with flucytosine. Limited trials in pulmonary infections justify the use of flucytosine. Cryptococcus: Meningitis and pulmonary infections have been treated effectively. Studies in septicemias and urinary tract infections are limited, but good responses have been reported. Flucytosine capsules should be used in combination with amphotericin B for the treatment of systemic candidiasis and cryptococcosis because of the emergence of resistan…

Excerpt only. Read the full label for complete information.

Full label on DailyMed (opens in a new tab)

About NDC 23155-861

What is NDC 23155-861?: 23155-861 is the product NDC for Flucytosine, Flucytosine 500 mg/1 capsule, listed with the FDA by Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc.. It has 2 package NDCs, shown above in 10- and 11-digit form.
What drug is associated with this NDC?: Flucytosine.
What is the active ingredient?: Flucytosine.
Who is the labeler?: Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc., NDC labeler code 23155. The labeler is the company responsible for the label; it may be the manufacturer, a repackager or a distributor.
What other NDCs exist for Flucytosine?: 16 other product NDCs are listed under this name. See all Flucytosine 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 Flucytosine NDCs
Product	Strength	Form · route	Labeler	Product NDC	Package NDCs (11-digit)
Flucytosine	Flucytosine 250 mg/1	CapsuleOral	Laurus Labs Limited	42385-983	42385-0983-0142385-0983-27
Flucytosine	Flucytosine 500 mg/1	CapsuleOral	Laurus Labs Limited	42385-984	42385-0984-0142385-0984-27
Flucytosine	Flucytosine 250 mg/1	CapsuleOral	Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc.	23155-860	23155-0860-0123155-0860-03
Flucytosine	Flucytosine 250 mg/1	CapsuleOral	American Health Packaging	60687-599	60687-0599-21
Flucytosine	Flucytosine 500 mg/1	CapsuleOral	American Health Packaging	60687-610	60687-0610-21
Flucytosine	Flucytosine 250 mg/1	CapsuleOral	AvPAK	50268-331	50268-0331-12
Flucytosine	Flucytosine 500 mg/1	CapsuleOral	AvPAK	50268-332	50268-0332-12
Flucytosine	Flucytosine 250 mg/1	CapsuleOral	Aurobindo Pharma Limited	59651-331	59651-0331-01
Flucytosine	Flucytosine 250 mg/1	CapsuleOral	Sigmapharm Laboratories, LLC	42794-009	42794-0009-08
Flucytosine	Flucytosine 500 mg/1	CapsuleOral	Sigmapharm Laboratories, LLC	42794-010	42794-0010-08

All 17 Flucytosine NDCs

Other NDCs under ANDA 212632

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

FDA NDC Directory listings under ANDA 212632
Product	Strength	Form · route	Labeler	Product NDC
Flucytosine	Flucytosine 250 mg/1	CapsuleOral	Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc.	23155-860