NDC codes

FDA NDC Directory
Product NDC (as listed)70518-4315Labeler and product segments. Claims need a package NDC.
Product NDC at billing width70518-4315Add 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 NDC11-digit (billing)PackageCopy
70518-4315-07051843150030 TABLET in 1 BLISTER PACK (70518-4315-0)Marketed from Mar 20, 2025
70518-4315-17051843150130 TABLET in 1 BOTTLE, PLASTIC (70518-4315-1)Marketed from May 1, 2025
70518-4315-27051843150245 TABLET in 1 BOTTLE, PLASTIC (70518-4315-2)Marketed from May 12, 2025

How the 11-digit form is made: The package segment has 1 digit, so one leading zero is added to it (5-4-1 → 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)
Isoniazid
Generic name (nonproprietary)
isoniazid
Active ingredients
Isoniazid — 300 mg/1
Dosage form
Tablet
Route
Oral
Product type
Prescription drug
Marketing category
ANDA — Abbreviated New Drug Application (generic)Application ANDA 080937
Marketing start
Marketing end
Identifiers
Product ID 70518-4315_5aa9218d-82a2-5923-e063-6394a90ad1c1SPL ID 5aa9218d-82a2-5923-e063-6394a90ad1c1SPL set ID 6dab7b7b-a3a9-47ef-b423-134bc6970d8bRxCUI 197832UNII V83O1VOZ8L
Pharmacologic class
Antimycobacterial

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

N470518431500 followed by a unit qualifier and the quantity

Package 70518-4315-00. 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 . This label includes a boxed warning.

Indications (excerpt from the label)

INDICATIONS AND USAGE Isoniazid tablets, USP are recommended for all forms of tuberculosis in which organisms are susceptible. However, active tuberculosis must be treated with multiple concomitant anti-tuberculosis medications to prevent the emergence of drug resistance. Single-drug treatment of active tuberculosis with isoniazid or any other medication, is inadequate therapy. Isoniazid tablets, USP are recommended as preventive therapy for the following groups, regardless of age. (Note: the criterion for a positive reaction to a skin test (in millimeters of induration) for each group is given in parenthesis): Persons with human immunodeficiency virus (HIV) infection (greater than or equal …

Excerpt only. Read the full label for complete information.

Full label on DailyMed (opens in a new tab)

Other NDCs under ANDA 080937

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

FDA NDC Directory listings under ANDA 080937
ProductStrengthForm · routeLabelerProduct NDC
IsoniazidIsoniazid 300 mg/1TabletOralTeva Pharmaceuticals USA, Inc.0555-0071
IsoniazidIsoniazid 300 mg/1TabletOralProficient Rx LP63187-978
IsoniazidIsoniazid 300 mg/1TabletOralGenus Lifesciences64950-217
IsoniazidIsoniazid 300 mg/1TabletOralCoupler LLC67046-1570
IsoniazidIsoniazid 300 mg/1TabletOralBryant Ranch Prepack71335-2760
IsoniazidIsoniazid 300 mg/1TabletOralMylan Institutional Inc.51079-083
IsoniazidIsoniazid 300 mg/1TabletOralBryant Ranch Prepack71335-2800
IsoniazidIsoniazid 300 mg/1TabletOralAphena Pharma Solutions - Tennessee, LLC71610-395
IsoniazidIsoniazid 300 mg/1TabletOralA-S Medication Solutions50090-0370

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