United States· US:16729-455_415fc774-31a5-124f-e063-6294a90a0e46

Levothyroxine sodium

A levothyroxine sodium product containing levothyroxine sodium, registered in United States by Accord Healthcare Inc.. The same ATC class is registered in 15 of our 19 countries.

ATC H03AA01US label

Checked against FDA National Drug Code directory (United States) on September 27, 2026

Informational only — not a medical device.

Compare price across countriesPer daily dose · free account Ask the assistant about levothyroxine sodiumAnswers with sources · free account Check interactionsSeverity free · mechanism on Growth

Where it is registered

Levothyroxine sodium is registered in 15 of 19 countries.

Countries holding a registration under ATC H03AA01 (levothyroxine sodium), each read from that country’s own register.

This record: United States, from FDA National Drug Code directory (United States)
9 of them publish a price we can compare per daily dose

Search levothyroxine sodium products by name

Levothyroxine sodium · ATC H03AA01

15 / 19 countries

Belgiumprice
Canada
Czechiaprice
Denmark
Finlandprice
Germany
Icelandprice
Ireland
Italyprice
Netherlands
Norwayprice
Polandprice
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.

Price per daily dose

What a daily dose of levothyroxine sodium costs, country by country.

Normalised to the WHO defined daily dose (0.15 mg), the median price runs from $0.12 in Italy to $0.29 in Switzerland — a ×2.4 gap.

2 markets with a comparable price for this class
Public list prices, converted to USD at the rate date shown

Open the full comparison — free account Drug prices for market access

Levothyroxine sodium · price per daily dose (0.15 mg)

USD · FX 28 Sept 2026

CH Switzerland$0.29
IT Italy$0.12

Median listed price per WHO defined daily dose, in each market that publishes a price. Open the full comparison

The record

At a glance

FDA National Drug Code directory (United States)

Active substance: LEVOTHYROXINE SODIUM
Manufacturer: Accord Healthcare Inc.
Country: United States (US)
ATC code: H03AA01
ATC class: Levothyroxine sodium
Defined daily dose: 0.15 mg, 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
1672945515
90 TABLET in 1 BOTTLE (16729-455-15)
ndc11
1672945517
1000 TABLET in 1 BOTTLE (16729-455-17)
ndc11
16729-455-15
ndc11
16729-455-17

Regulatory notes

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

Interactions

883 interactions on record for levothyroxine sodium.

Graded by severity as the source publishes them — 184 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 levothyroxine sodium against other medicines How interaction checks work

Levothyroxine sodium · interactions on record

883 records

184 moderate
22 minor
578 info

Most severe, free to view

Magnesium carbonateA02AA01moderate
Magnesium oxideA02AA02moderate
Magnesium hydroxideA02AA04moderate
Kombinationen von AluminiumsalzenA02AB10moderate

99 more interactions with mechanism and management, from a commercially licensed source.

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

Levothyroxine sodium in 15 other countries

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

All levothyroxine sodium products

Authorised across Europe · EMA

The same active substance is authorised in 30 EEA countries. Names it is sold under:

Austria · Euthyrox, L-Thyroxin Serb
Belgium · Euthyrox, L-Thyroxine Christiaens
Bulgaria · Accu-Thyrox, L-Тироксин
Cyprus · Accu-Thyrox, Euthyrox
Czechia · Althyxin, Euthyrox
Germany · Eferox, Eferox 175
Denmark · Eltroxin, Euthyrox
Estonia · L-Thyroxin Berlin-Chemie
Spain · Eutirox, Levotiroxina Aristo
Finland · Levothyroxine Orion, Levothyroxine Sandoz
France · L-Thyroxin Henning, L-Thyroxine
United Kingdom (Northern Ireland) · Eltroxin, Levothyroxine
Greece · Accu-Thyrox, Euthyrox
Croatia · Euthyrox
Hungary · Euthyrox, L-Thyroxin Henning
Ireland · Eltroxin, Levothyroxine Amdipharm Limited
Iceland · Euthyrox, Levaxin
Italy · Eutirox, Levotiroxina Abdi
Lithuania · L-Thyroxin Berlin-Chemie, Levothyroxine Sodium
Luxembourg · Euthyrox, L-Thyroxine
Latvia · Euthyrox, L-Thyroxin Berlin-Chemie
Malta · Eltroxin, Levothyroxine Mercury Pharma Group
Netherlands · Eltroxin, Euthyrox
Norway · Euthyrox, Levothyroxine Sodium Serb
Poland · Althyxin, Eferox
Portugal · Eutirox, Letter
Romania · Accu-Thyrox, Euthyrox
Sweden · Euthyrox, Levothyroxine Serb
Slovenia · Eltroxin, Euthyrox
Slovakia · Euthyrox, L-Thyroxin

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/e2ecac3b-cc2d-4570-b0cb-58757d4314ef
GET /v1/drugs/e2ecac3b-cc2d-4570-b0cb-58757d4314ef?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": "150",
  "substance": "LEVOTHYROXINE SODIUM",
  "productndc": "16729-455",
  "dosage_form": "TABLET",
  "dea_schedule": null,
  "strength_unit": "ug/1",
  "application_number": "ANDA212399",
  "marketing_category": "ANDA"
}

API reference MCP server Plans

See everything about levothyroxine sodium.

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.

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