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Active ingredient

Thyroid (Usp)

39 finished FDA listings contain Thyroid (Usp) as their only active ingredient; 199 combination products also contain it.

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FDA NDC Directory

Ingredient names as written by FDA
THYROID, THYROID, UNSPECIFIED
Dosage forms
Liquid, Pellet, Tablet
Routes
Oral
Manufacturers / labelers
8
Strengths listed
1 [hp_m]/[hp_m] · 12 [hp_c]/12[hp_c] · 120 mg/1 · 15 mg/1 · 180 mg/1 · 200 [kp_c]/200[kp_c] · 240 mg/1 · 30 [hp_c]/30[hp_c] · 30 mg/1 · 300 mg/1 · 4 [hp_c]/4[hp_c] · 6 [hp_c]/6[hp_c] · 6 [hp_x]/ml · 60 mg/1 · 8 [hp_x]/1 · 9 [hp_c]/9[hp_c] · 90 mg/1
Brand names in FDA listings
Amerithroid, Armour Thyroid, Niva Thyroid, Thyroidinum

RxNorm (National Library of Medicine)

Ingredient concept RxCUI 10572

Drugs@FDA applications

Linked only where the FDA listing’s application number matches Drugs@FDA exactly. A listing in the NDC Directory does not by itself mean FDA approval.

No matching Drugs@FDA applications.

Official labeling on DailyMed

Showing the 12 most recent of 17 labels.

Sources: FDA NDC Directory (2026-09-29), RxNorm, Drugs@FDA, DailyMed. Each source’s facts are shown separately as published.