FDA Orange Book
Generic for Cytomel
Cytomel contains liothyronine. Orange Book status for every listed strength, the approved generic makers, and the listed patents and exclusivities.
Source: FDA Orange Book data file dated 2026-10-09. Publisher page
Yes. The generic name for Cytomel is liothyronine. 6 companies hold an active FDA approval (ANDA) for a generic version in the Orange Book. Therapeutic equivalence codes: AB.
Run it in Rivvi
Map Cytomel and your other top fills to their generics
Every strength in RxNorm, with brands that have no generic flagged.
Build the mapFree to start. Opens Rivvi, the AI workspace for healthcare teams.
Cytomel products in the Orange Book
| Form and route | Strength | Brand status | Brand TE | Active generics | Generic TE codes |
|---|---|---|---|---|---|
| tablet, oral | EQ 0.005MG BASE | Marketed (Rx) | AB | 6 | AB |
| tablet, oral | EQ 0.025MG BASE | Marketed (Rx) | AB | 6 | AB |
| tablet, oral | EQ 0.05MG BASE | Marketed (Rx) | AB | 6 | AB |
NDA 010379, held by KING PHARMACEUTICALS RESEARCH AND DEVELOPMENT LLC. Active generics are ANDA products in the Orange Book prescription list with the same ingredient, dosage form, route and strength.
Approved generic liothyronine
| Company | ANDA | TE code | Approved | Strengths |
|---|---|---|---|---|
| DR REDDYS LABORATORIES SA | 090097 | AB (A-rated, therapeutically equivalent) | March 20, 2009 | EQ 0.005MG BASE, EQ 0.025MG BASE, EQ 0.05MG BASE |
| SIGMAPHARM LABORATORIES LLC | 200295 | AB (A-rated, therapeutically equivalent) | November 29, 2012 | EQ 0.005MG BASE, EQ 0.025MG BASE, EQ 0.05MG BASE |
| SUN PHARMACEUTICAL INDUSTRIES LTD | 091382 | AB (A-rated, therapeutically equivalent) | April 20, 2016 | EQ 0.005MG BASE, EQ 0.025MG BASE, EQ 0.05MG BASE |
| TEVA PHARMACEUTICALS USA INC | 211510 | AB (A-rated, therapeutically equivalent) | October 26, 2018 | EQ 0.005MG BASE, EQ 0.025MG BASE, EQ 0.05MG BASE |
| ZYDUS LIFESCIENCES GLOBAL FZE | 214803 | AB (A-rated, therapeutically equivalent) | January 22, 2021 | EQ 0.005MG BASE, EQ 0.025MG BASE, EQ 0.05MG BASE |
| BIOCON PHARMA INC | 218070 | AB (A-rated, therapeutically equivalent) | February 6, 2024 | EQ 0.005MG BASE, EQ 0.025MG BASE, EQ 0.05MG BASE |
Cytomel NDC codes
Questions
Is there a generic for Cytomel?
Yes. The generic name for Cytomel is liothyronine. 6 companies hold an active FDA approval (ANDA) for a generic version in the Orange Book. Therapeutic equivalence codes: AB.
What is the generic name for Cytomel?
The active ingredient in Cytomel is liothyronine, per the FDA Orange Book.
What does a therapeutic equivalence code mean?
In the Orange Book, codes that start with A (such as AB) mean FDA considers the product therapeutically equivalent to the reference drug. Codes that start with B mean FDA does not, at this time, consider the product therapeutically equivalent.