Who are Thyroid hormone's main competitors?

Direct comparators (same drug class / molecular target / therapeutic area): Levothyroxin-Na, Liothyronine and Levothyroxine, Levothyroxine-Na + iodide, Levoxyl, L-Thyroxine (tablet, per os), Cytomel.

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Every 30 minutes from primary sources (FDA, EMA, MHRA, PMDA, ClinicalTrials.gov, USPTO). Subscribe to the RSS feed below for push alerts.

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Last reviewed 2026-05-13 · How we verify

Thyroid hormone — Competitive Intelligence Brief

Thyroid hormone (Thyroid hormone) competitive landscape: 6 comparators, recent regulatory actions, upcoming PDUFA, patent timeline. Class: Thyroid hormone replacement. Area: Endocrinology.

marketed Thyroid hormone replacement Thyroid hormone receptors (TR-alpha, TR-beta) Endocrinology Small molecule Live · refreshed every 30 min

Target snapshot

Thyroid hormone (Thyroid hormone) — Merck Sharp & Dohme LLC. Thyroid hormone replaces or supplements endogenous thyroid hormones (T3 and T4) to restore normal metabolic function in hypothyroid patients.

Comparator set (6 drugs)

Auto-detected by same drug class / molecular target / therapeutic area, ranked by phase + recency. Override with ?vs=slug1,slug2,….

Drug	Generic	Sponsor	Phase	Class	Target
Thyroid hormone TARGET	Thyroid hormone	Merck Sharp & Dohme LLC	marketed	Thyroid hormone replacement	Thyroid hormone receptors (TR-alpha, TR-beta)
Levothyroxin-Na	Levothyroxin-Na	Sanofi	marketed	Thyroid hormone replacement	Thyroid hormone receptors (TR-alpha and TR-beta)
Liothyronine and Levothyroxine	Liothyronine and Levothyroxine	National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)	marketed	Thyroid hormone replacement	Thyroid hormone receptor alpha and beta (TRα, TRβ)
Levothyroxine-Na + iodide	Levothyroxine-Na + iodide	Sanofi	marketed	Thyroid hormone replacement therapy	Thyroid hormone receptors (TR-alpha and TR-beta)
Levoxyl	Levothyroxine Sodium	Pfizer Inc.	marketed	Thyroid hormone replacement	Thyroid receptor proteins attached to DNA
L-Thyroxine (tablet, per os)	L-Thyroxine (tablet, per os)	Meyer Children's Hospital IRCCS	marketed	Thyroid hormone replacement	Thyroid hormone receptors (TR-alpha, TR-beta)
Cytomel	Liothyronine Sodium	Pfizer Inc.	marketed	Thyroid hormone replacement	Thyroid receptor proteins attached to DNA

Recent regulatory actions (last 90 days)

No regulatory actions in the last 90 days for this set.

Upcoming PDUFA dates (next 180 days)

No PDUFA dates in the next 180 days for this set.

Patent timeline (forward window)

No upcoming patent expiries for this set.

Sponsor landscape (Thyroid hormone replacement class)

Pfizer Inc. · 2 drugs in this class
Daewon Pharmaceutical Co., Ltd. · 1 drug in this class
IBSA Institut Biochimique SA · 1 drug in this class
M. Medici · 1 drug in this class
Merck Sharp & Dohme LLC · 1 drug in this class
Meyer Children's Hospital IRCCS · 1 drug in this class
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) · 1 drug in this class
Oregon Health and Science University · 1 drug in this class
Sanofi · 1 drug in this class
Takeda · 1 drug in this class

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Cite this brief

Drug Landscape (2026). Thyroid hormone — Competitive Intelligence Brief. https://druglandscape.com/ci/thyroid-hormone. Accessed 2026-05-13.

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