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United States· US:23155-906_9c89cf92-066c-419f-b9fe-73684a62e8a4

Nafcillin

A nafcillin product containing nafcillin sodium, registered in United States by Heritage Pharmaceuticals Inc. d/b/a/ Avet Pharmaceuticals Inc..

ATC J01CF06

Checked against FDA National Drug Code directory (United States) on

Informational only — not a medical device.

SOURCE REGISTER · USFDA National Drug Code directory (Unite…normalisedNafcillinATCJ01CF06REGISTER NO.US:23155-906_9c89cf92…PACKS LISTED1CHECKEDSeptember 27, 2026
Compare price across countriesPer daily dose · free accountAsk the assistant about nafcillin sodiumAnswers with sources · free accountCheck interactionsSeverity free · mechanism on Growth

The record

At a glance

FDA National Drug Code directory (United States)
Active substance
NAFCILLIN SODIUM
Manufacturer
Heritage Pharmaceuticals Inc. d/b/a/ Avet Pharmaceuticals Inc.
Country
United States (US)
ATC code
J01CF06
ATC class
Nafcillin
Defined daily dose
3 g, P
Reimbursed
Not published by this register
Source register
FDA National Drug Code directory (United States)
Last checked
September 27, 2026

Packs & prices · 1

  • ndc11
    23155-906-41

Regulatory notes

No shortage, Orange Book or US label notes for this record.

Interactions

173 interactions on record for nafcillin.

Graded by severity as the source publishes them — 34 severe. Severity grades are free for everyone; mechanism and management come with Growth.

  • Severity for every pair — free, no plan needed
  • The source, licence and sync date on every record
  • Mechanism and what to do for each pair — Growth plan
Check nafcillin against other medicinesHow interaction checks work

Nafcillin · interactions on record

173 records

  • 34 severe
  • 128 moderate
  • 11 minor

Most severe, free to view

  • DicoumarolB01AA01severe
  • WarfarinB01AA03severe
  • DeflazacortH02AB13severe
  • MethotrexateL01BA01severe
  • Interaction severity from DDInter 2.0 (Xiong G. et al., Nucleic Acids Res.), licensed CC BY-NC 4.0 — free for non-commercial use only; not covered by the Drug Database commercial licence.
Mechanism and what to do, in the interaction check
Source: DDInter 2.0 · synced 29 Sept 2026. Grades as the source publishes them.

Same class

Other records under J01CF06

Nafcillin, as other registers publish it.

All nafcillin products

Sourced from a public register and reproduced with attribution. Drug Database is not affiliated with, endorsed by, or a partner of FDA National Drug Code directory (United States). This is an informational data service and not a medical device — verify against the official source of record before any clinical decision.

For developers

The same record over the API, and the raw payload
GET /v1/drugs/976dff6a-b306-4ce0-8ae1-b1214af9fe4f
GET /v1/drugs/976dff6a-b306-4ce0-8ae1-b1214af9fe4f?format=fhir

Every response carries last_synced_at, so freshness is a field rather than a promise. Below is exactly what the ingestion wrote, before any presentation — the same JSON the API returns under payload.

{
  "route": "INTRAMUSCULAR; INTRAVENOUS",
  "source": "ndc",
  "strength": "1",
  "substance": "NAFCILLIN SODIUM",
  "productndc": "23155-906",
  "dosage_form": "INJECTION, POWDER, FOR SOLUTION",
  "dea_schedule": null,
  "strength_unit": "g/4mL",
  "application_number": "ANDA090560",
  "marketing_category": "ANDA"
}
API referenceMCP serverPlans

See everything about nafcillin.

This page is the registration. A free account adds the label text as the regulator wrote it, what it costs per daily dose across the markets that publish a price, a feed of what changes in the registers, and an assistant that answers with its sources. Interaction severity is free; mechanism and management are on the Growth plan. No card, nothing to install.

Try it freeOpen in the console