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United States· US:45963-439_7fd63ff0-fccd-408a-9c56-2c2fefdb74fc

Constulose

A lactulose product containing lactulose, registered in United States by Actavis Pharma, Inc.. The same ATC class is registered in 16 of our 19 countries.

ATC A06AD11

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

Informational only — not a medical device.

SOURCE REGISTER · USFDA National Drug Code directory (Unite…normalisedConstuloseATCA06AD11REGISTER NO.US:45963-439_7fd63ff0…PACKS LISTED4CHECKEDSeptember 27, 2026
Compare price across countriesPer daily dose · free accountAsk the assistant about lactuloseAnswers with sources · free accountCheck interactionsSeverity free · mechanism on Growth

Where it is registered

Lactulose is registered in 16 of 19 countries.

Countries holding a registration under ATC A06AD11 (lactulose), each read from that country’s own register.

  • This record: United States, from FDA National Drug Code directory (United States)
  • 8 of them publish a price we can compare per daily dose
Search lactulose products by name

Lactulose · ATC A06AD11

16 / 19 countries

  • Belgiumprice
  • Canada
  • Czechiaprice
  • Denmark
  • Finlandprice
  • Franceprice
  • Germany
  • Ireland
  • Japan
  • Netherlands
  • Norwayprice
  • Polandprice
  • Sweden
  • Switzerlandprice
  • United Kingdom
  • United Statesprice
Blue: a registration under this ATC code. The ringed marker is this record’s country. Markets marked price publish a price we can compare per daily dose.

The record

At a glance

FDA National Drug Code directory (United States)
Active substance
LACTULOSE
Manufacturer
Actavis Pharma, Inc.
Country
United States (US)
ATC code
A06AD11
ATC class
Lactulose
Defined daily dose
12.5 g, O
Reimbursed
Not published by this register
Source register
FDA National Drug Code directory (United States)
Last checked
September 27, 2026

Packs & prices · 4

  • ndc11
    4596343963
    237 mL in 1 BOTTLE (45963-439-63)
  • ndc11
    4596343965
    946 mL in 1 BOTTLE (45963-439-65)
  • ndc11
    45963-439-63
  • ndc11
    45963-439-65

Regulatory notes

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

Interactions

657 interactions on record for lactulose.

Graded by severity as the source publishes them — 263 moderate. 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 lactulose against other medicinesHow interaction checks work

Lactulose · interactions on record

657 records

  • 263 moderate
  • 18 minor
  • 376 info

Most severe, free to view

  • CisaprideA03FA02moderate
  • OndansetronA04AA01moderate
  • GranisetronA04AA02moderate
  • DolasetronA04AA04moderate
  • 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 medicine, other countries

Lactulose in 13 other countries

What each register calls a product with the same active substance — salts and hydrates count as the same.

All lactulose products

Authorised across Europe · EMA

The same active substance is authorised in 29 EEA countries. Names it is sold under:

  • Austria · Duphalac Fruit, Lactulose Genericon
  • Belgium · Bifiteral, Duphalac
  • Bulgaria · Дуфалак, Лактулакс
  • Cyprus · Duphalac
  • Czechia · Duphalac, Lactulosa Biomedica
  • Germany · Bifiteral, Bifiteral Mit Pflaumenaroma
  • Denmark · Lactulose Orifarm, Medilax
  • Estonia · Duphalac, Duphalac Fruit
  • Spain · Duphalac, Lactulosa Lainco
  • Finland · Duphalac, Duphalac Fruit
  • France · Duphalac, Lactulose Arrow
  • United Kingdom (Northern Ireland) · Lactolax, Lactulose
  • Greece · Duphafruit, Duphalac
  • Croatia · Portalak, Portalak Efekt
  • Ireland · Brillphalac, Lactecon
  • Iceland · Medilax
  • Italy · Duphalac, Epalfen Eps
  • Lithuania · Duphalac, Duphalac Fruit
  • Luxembourg · Bifiteral, Duphalac
  • Latvia · Duphalac Fruit, Lactulose Mip
  • Malta · Duphalac, Lactulose
  • Netherlands · Duphalac, Duphalac Fruit
  • Norway · Duphalac, Duphalac Med Fruktsmak
  • Poland · Duphalac, Duphalac Fruit
  • Portugal · Duphalac, Duphalac Ameixa
  • Romania · Duphalac Fruit, Lactecon
  • Sweden · Duphalac, Laktulos Cooper
  • Slovenia · Prorektal
  • Slovakia · Duphalac, Lactecon

Source: European Medicines Agency, Article 57 product data.

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/9fade62d-c88d-4fe5-afbe-9ef159269100
GET /v1/drugs/9fade62d-c88d-4fe5-afbe-9ef159269100?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": "ORAL",
  "source": "ndc",
  "strength": "10",
  "substance": "LACTULOSE",
  "productndc": "45963-439",
  "dosage_form": "SOLUTION",
  "dea_schedule": null,
  "strength_unit": "g/15mL",
  "application_number": "ANDA090503",
  "marketing_category": "ANDA"
}
API referenceMCP serverPlans

See everything about lactulose.

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