United States· US:70771-1607_78687e45-2fc7-4331-b88e-ee6c2a7a2bff
Liothyronine sodium
A medicinal product containing liothyronine sodium, registered in United States by Zydus Lifesciences Limited.
Checked against FDA National Drug Code directory (United States) on
Informational only — not a medical device.
The record
At a glance
FDA National Drug Code directory (United States)- Active substance
- LIOTHYRONINE SODIUM
- Manufacturer
- Zydus Lifesciences Limited
- Country
- United States (US)
- ATC code
- —
- Reimbursed
- Not published by this register
- Source register
- FDA National Drug Code directory (United States)
- Last checked
- September 27, 2026
Packs & prices · 4
- ndc1170771160701000 TABLET in 1 BOTTLE (70771-1607-0)
- ndc117077116071100 TABLET in 1 BOTTLE (70771-1607-1)
- ndc1170771-1607-0
- ndc1170771-1607-1
Regulatory notes
No shortage, Orange Book or US label notes for this record.
Same medicine, other countries
Liothyronine sodium in 9 other countries
What each register calls a product with the same active substance — salts and hydrates count as the same.
- United KingdomCytomel 25microgram tabletsImported (United States)
- CanadaCYTOMELPFIZER CANADA ULC
- NetherlandsCytomel 25 microgram, tablettenACE Pharmaceuticals B.V.
- FranceCYNOMEL 0,025 mg, comprimé sécableSANOFI WINTHROP INDUSTRIE
- NorwayCytomelACE Pharmaceuticals
- ItalyLIOTIR*orale 30 contenitori monodose 1 ml 10 mcg/mlIBSA FARMACEUTICI ITALIA Srl
- GermanyThybon 100Sanofi-Aventis Deutschland Gmbh
- SwedenLiopent 5 mikrogram TablettPharmassist Ltd, Contract Reasearch Organisation
Authorised across Europe · EMA
The same active substance is authorised in 9 EEA countries. Names it is sold under:
- Germany · Thybon 100, Thybon 20
- Denmark · Liopent
- France · Cynomel, Thybon
- United Kingdom (Northern Ireland) · Enolio, Iraksin
- Greece · T3
- Italy · Liotir
- Netherlands · Cytomel, Liopent
- Norway · Liothyronin Orifarm Healthcare
- Sweden · Liothyronin
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/b2731e54-3a00-4d9e-b791-f43003dcdb2c GET /v1/drugs/b2731e54-3a00-4d9e-b791-f43003dcdb2c?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": "25",
"substance": "LIOTHYRONINE SODIUM",
"productndc": "70771-1607",
"dosage_form": "TABLET",
"dea_schedule": null,
"strength_unit": "ug/1",
"application_number": "ANDA214803",
"marketing_category": "ANDA"
}See everything about liothyronine 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.