What is NDC 42571-393?

42571-393 is the product NDC for Nitrofurantoin, Nitrofurantoin 100 mg/1 capsule, listed with the FDA by Micro Labs Limited. It has 3 package NDCs, shown above in 10- and 11-digit form.

Micro Labs Limited, NDC labeler code 42571. The labeler is the company responsible for the label; it may be the manufacturer, a repackager or a distributor.

What other NDCs exist for Nitrofurantoin?

43 other product NDCs are listed under this name.

Is there a related HCPCS / J-code?

Not in Med-Code's curated HCPCS directory.

Nitrofurantoin NDC 42571-393 | National Drug Code

NDC codes

FDA NDC Directory

Product NDC (as listed)42571-393Labeler and product segments. Claims need a package NDC.

Product NDC at billing width42571-0393Add 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
42571-393-01	4257103930142571039301	100 CAPSULE in 1 BOTTLE (42571-393-01)Marketed from Apr 1, 2024
42571-393-05	4257103930542571039305	500 CAPSULE in 1 BOTTLE (42571-393-05)Marketed from Apr 1, 2024
42571-393-90	4257103939042571039390	90 CAPSULE in 1 BOTTLE (42571-393-90)Marketed from Apr 1, 2024

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): Nitrofurantoin
Generic name (nonproprietary): nitrofurantoin
Active ingredients: Nitrofurantoin — 100 mg/1
Dosage form: Capsule
Route: Oral
Labeler: Micro Labs LimitedNDC labeler code 42571
Product type: Prescription drug
Marketing category: ANDA — Abbreviated New Drug Application (generic)Application ANDA 217073
Marketing start: Apr 1, 2024
Listing expires: Dec 31, 2027
Other FDA classes: Nitrofurans (Chemical structure)
Identifiers: Product ID 42571-393_35155f61-5d28-d364-e063-6294a90aa4c6SPL ID 35155f61-5d28-d364-e063-6294a90aa4c6SPL set ID d96098d0-3c2b-4e53-a3f0-3ebba81c4133RxCUI 1648755UNII 927AH8112LUPC 0342571393908
Pharmacologic class: Nitrofuran Antibacterial

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

N442571039301 followed by a unit qualifier and the quantity

Package 42571-0393-01. 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 May 14, 2025.

Indications (excerpt from the label)

INDICATIONS AND USAGE Nitrofurantoin capsules (monohydrate/macrocrystals) are indicated only for the treatment of acute uncomplicated urinary tract infections (acute cystitis) caused by susceptible strains of Escherichia coli or Staphylococcus saprophyticus . Nitrofurantoin is not indicated for the treatment of pyelonephritis or perinephric abscesses. To reduce the development of drug-resistant bacteria and maintain the effectiveness of nitrofurantoin capsules (monohydrate/macrocrystals) and other antibacterial drugs, nitrofurantoin capsules (monohydrate/macrocrystals) should be used only to treat or prevent infections that are proven or strongly suspected to be caused by susceptible bacteri…

Excerpt only. Read the full label for complete information.

Full label on DailyMed (opens in a new tab)

About NDC 42571-393

What is NDC 42571-393?: 42571-393 is the product NDC for Nitrofurantoin, Nitrofurantoin 100 mg/1 capsule, listed with the FDA by Micro Labs Limited. It has 3 package NDCs, shown above in 10- and 11-digit form.
What drug is associated with this NDC?: Nitrofurantoin.
What is the active ingredient?: Nitrofurantoin.
Who is the labeler?: Micro Labs Limited, NDC labeler code 42571. The labeler is the company responsible for the label; it may be the manufacturer, a repackager or a distributor.
What other NDCs exist for Nitrofurantoin?: 43 other product NDCs are listed under this name. See all Nitrofurantoin 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 Nitrofurantoin NDCs
Product	Strength	Form · route	Labeler	Product NDC	Package NDCs (11-digit)
Nitrofurantoin	Nitrofurantoin 25 mg/5mL	SuspensionOral	Camber Pharmaceuticals, Inc.	31722-491	31722-0491-23
Nitrofurantoin	Nitrofurantoin 25 mg/5mL	For suspensionOral	Somerset Therapeutics, LLC	70069-829	70069-0829-01
Nitrofurantoin	Nitrofurantoin 100 mg/1	CapsuleOral	REMEDYREPACK INC.	70518-4244	70518-4244-00
Nitrofurantoin	Nitrofurantoin 25 mg/5mL	SuspensionOral	Biocon Pharma Inc	70377-118	70377-0118-31
Nitrofurantoin	Nitrofurantoin 50 mg/5mL	SuspensionOral	Rising Pharma Holdings, Inc.	16571-888	16571-0888-06
nitrofurantoinnitrofurantoin macrocrystals	Nitrofurantoin 100 mg/1	CapsuleOral	A-S Medication Solutions	50090-7217	50090-7217-0050090-7217-0250090-7217-03
Nitrofurantoin	Nitrofurantoin 25 mg/1; Nitrofurantoin monohydrate 75 mg/1	CapsuleOral	St. Mary's Medical Park Pharmacy	60760-853	60760-0853-14
Nitrofurantoinnitrofurantoin (monohydrate/macrocrystals)	Nitrofurantoin monohydrate 75 mg/1; Nitrofurantoin 25 mg/1	CapsuleOral	NuCare Pharmaceuticals,Inc.	68071-3569	68071-3569-0168071-3569-0268071-3569-04
Nitrofurantoin	Nitrofurantoin monohydrate 25 mg/5mL	SuspensionOral	Aurobindo Pharma Limited	59651-206	59651-0206-23
Nitrofurantoin	Nitrofurantoin monohydrate 25 mg/5mL	SuspensionOral	Rising Pharma Holdings, Inc.	64980-593	64980-0593-24

All 44 Nitrofurantoin NDCs