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Thyroid (USP) 240 MG Oral Tablet — RxCUI 313385

RxNorm drug concept · Semantic clinical drug
RxCUI 313385 Semantic clinical drug · SCD ● Current RxNorm concept 25 FDA products 25 package NDCs Snapshot Jul 14, 2026

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Compiled from public NLM RxNorm and FDA (openFDA NDC directory) data sources. Editorial policy

What you’re looking at: the standardized identity of one medicine, as the U.S. drug-data system sees it. Below — every FDA-listed product, package code, price benchmark, and billing code that maps to it.

🗂️ Key Facts

RxCUI313385
Official nameThyroid (USP) 240 MG Oral Tablet
Concept typeSemantic clinical drug (SCD)
RxNorm statusCurrent RxNorm concept
Also known asthyroid (USP) 4 grain Oral Tablet; thyroid 240 MG (4 grain) Oral Tablet; levothyroxine sodium 152 MCG / liothyronine sodium 36 MCG Oral Tablet
FDA products mapped25
Package NDCs mapped25
Reported Medicaid activity (SDUD)129,905 prescriptions · 50 state & territory Medicaid programs · latest period Q4 2025
RxNorm release07/06/2026
Snapshot dataJul 14, 2026

📖 Skip the Codes — Read It in Plain English.

Our pharmacist-built guide to Thyroid: what it is, how it’s used, side effects, and interactions.

📗 Our plain-language guide HelloPharmacist
  • Desiccated thyroid is made from dried pig (porcine) thyroid glands and naturally contains both T4 and T3 — the two main thyroid hormones your body makes. Synthetic options like lev...
  • What exactly is desiccated thyroid, and is it the same as synthetic thyroid hormone?
  • No — and this is really important. If your thyroid is working normally, taking thyroid hormone will not cause meaningful weight loss. Worse, taking it in higher doses to try to los...
  • Can I use thyroid tablets to lose weight?
📖 Read our full Thyroid guide →

🕸️ Concept Web — How Thyroid (USP) 240 MG Oral Tablet Connects

One RxCUI never lives alone. Follow the path from the raw ingredient down to the exact strength-and-form concepts FDA products carry — every stop is a real RxNorm concept with its own identifier. Hover or focus any chip for what it means.
This page's concept Thyroid (USP) 240 MG Oral Tablet RxCUI 313385

Every web starts here: one RxCUI, one fixed meaning in the RxNorm vocabulary.

  1. Ingredients 1

    The active substance itself — no strength, form, or brand attached yet.

    • Thyroid (USP) 10572
  2. Brand names 3

    The same medicine's trade names. A brand name alone says nothing about strength or form.

    • Amerithroid 2743046
    • Armour Thyroid 215407
    • Niva Thyroid 2642811
  3. Dose forms 15

    The ingredient poured into a form — tablet, solution, cream — still without one fixed strength.

    • Thyroid (USP) Oral Tablet 374122
    • Thyroid (USP) Oral Product 1162082
    • Thyroid (USP) Pill 1162083
    • Thyroid (USP) Oral Tablet [Amerithroid] 2743050
    • Thyroid (USP) Oral Tablet [Armour Thyroid] 369234
    • Thyroid (USP) Oral Tablet [Niva Thyroid] 2642815
    • Amerithroid Oral Product 2743048
    • Amerithroid Pill 2743049
    • +7 more in this family
  4. Clinical & branded drugs 7

    Ingredient + strength + dose form. These are the concepts real FDA products actually carry.

Showing up to 8 concepts per family — 19 of 26 stored related concepts drawn.
These are official RxNorm vocabulary relationships — how concepts name and organize the same medicine. They do not establish therapeutic equivalence or substitutability: two concepts appearing in one web is never a statement that products can be swapped.

🔀 Generic ⇄ Brand Crosswalk

The same medicine has an unbranded (generic) identity and one or more brand-name identities — each with its own RxCUI. This is a naming relationship in RxNorm, not a statement that any two products are substitutable.

Generic (Clinical) Concepts

  • Thyroid (USP) 240 MG SCDC · 331523
  • Thyroid (USP) Oral Tablet SCDF · 374122
  • Thyroid (USP) Oral Product SCDG · 1162082
  • Thyroid (USP) Pill SCDG · 1162083

Brand-Name Concepts

📦 FDA Products & Package NDCs

25 products · 25 package NDCs
25 package NDCs map to RxCUI 313385 in the current snapshot — up to 50 per page. Each linked NDC opens its full package page.
Package NDC Package Brand / generic name Labeler Marketing start
00456-0457-01 100 TABLET in 1 BOTTLE (0456-0457-01) Armour Thyroid Allergan, Inc. 1996-04-01
00456-0458-01 100 TABLET in 1 BOTTLE (0456-0458-01) Armour Thyroid Allergan, Inc. 1996-04-01
00456-0459-01 100 TABLET in 1 BOTTLE (0456-0459-01) Armour Thyroid Allergan, Inc. 1996-04-01
00456-0460-01 100 TABLET in 1 BOTTLE (0456-0460-01) Armour Thyroid Allergan, Inc. 1996-04-01
00456-0461-01 100 TABLET in 1 BOTTLE (0456-0461-01) Armour Thyroid Allergan, Inc. 1996-04-01
00456-0462-01 100 TABLET in 1 BOTTLE (0456-0462-01) Armour Thyroid Allergan, Inc. 1996-04-01
00456-0463-01 100 TABLET in 1 BOTTLE (0456-0463-01) Armour Thyroid Allergan, Inc. 1996-04-01
00456-0464-01 100 TABLET in 1 BOTTLE (0456-0464-01) Armour Thyroid Allergan, Inc. 1996-04-01
00456-1045-01 100 TABLET in 1 BOTTLE (0456-1045-01) Armour Thyroid Allergan, Inc. 1996-04-01
75834-0310-01 100 TABLET in 1 BOTTLE (75834-310-01) Niva Thyroid Nivagen Pharmaceuticals, Inc. 2023-07-24
75834-0311-01 100 TABLET in 1 BOTTLE (75834-311-01) Niva Thyroid Nivagen Pharmaceuticals, Inc. 2023-07-24
75834-0312-01 100 TABLET in 1 BOTTLE (75834-312-01) Niva Thyroid Nivagen Pharmaceuticals, Inc. 2023-07-24
75834-0313-01 100 TABLET in 1 BOTTLE (75834-313-01) Niva Thyroid Nivagen Pharmaceuticals, Inc. 2023-07-24
75834-0314-01 100 TABLET in 1 BOTTLE (75834-314-01) Niva Thyroid Nivagen Pharmaceuticals, Inc. 2023-07-24
75834-0315-01 100 TABLET in 1 BOTTLE (75834-315-01) Niva Thyroid Nivagen Pharmaceuticals, Inc. 2023-07-24
75834-0316-01 100 TABLET in 1 BOTTLE (75834-316-01) Niva Thyroid Nivagen Pharmaceuticals, Inc. 2023-07-24
75834-0317-01 100 TABLET in 1 BOTTLE (75834-317-01) Niva Thyroid Nivagen Pharmaceuticals, Inc. 2023-07-24
82685-0341-01 100 TABLET in 1 BOTTLE (82685-341-01) Amerithroid Oliva Therapeutics, LLC 2026-05-07
82685-0342-01 100 TABLET in 1 BOTTLE (82685-342-01) Amerithroid Oliva Therapeutics, LLC 2026-05-07
82685-0343-01 100 TABLET in 1 BOTTLE (82685-343-01) Amerithroid Oliva Therapeutics, LLC 2026-05-07
82685-0344-01 100 TABLET in 1 BOTTLE (82685-344-01) Amerithroid Oliva Therapeutics, LLC 2026-05-07
82685-0345-01 100 TABLET in 1 BOTTLE (82685-345-01) Amerithroid Oliva Therapeutics, LLC 2026-05-07
82685-0346-01 100 TABLET in 1 BOTTLE (82685-346-01) Amerithroid Oliva Therapeutics, LLC 2026-05-07
82685-0347-01 100 TABLET in 1 BOTTLE (82685-347-01) Amerithroid Oliva Therapeutics, LLC 2026-05-07
82685-0348-01 100 TABLET in 1 BOTTLE (82685-348-01) Amerithroid Oliva Therapeutics, LLC 2026-05-07
Observed labelers: Allergan, Inc. (9) · Nivagen Pharmaceuticals, Inc. (8) · Oliva Therapeutics, LLC (8) — this is the FDA-listed mapping footprint, not sales, inventory, availability, or market share.

🗃️ Sources & Limits

Atlas generation902fddb9-e9c1-4004-bf4c-dba4d51037c7
openFDA export observedJul 14, 2026
RxNorm release07/06/2026
Methodology2026-07-full-catalog-v1
  • A shared RxCUI does not prove interchangeability. Products mapped to the same concept are not thereby equivalent or substitutable — equivalence is a separate, product-level determination.
  • Listing here does not establish approval or coverage. Appearing in this snapshot is a data observation, not an FDA approval status or a payer coverage decision.
  • Missing data never means zero. A silent dataset (no price, no billing code, no utilization) means no observation — not that the real-world value is zero.
  • Counts describe the mapping footprint. Product, package, and labeler counts are the FDA-listed mapping footprint in this snapshot — not sales, inventory, availability, or market share.
This product uses publicly available data from the U.S. National Library of Medicine (NLM), National Institutes of Health, Department of Health and Human Services; NLM is not responsible for the product and does not endorse or recommend this or any other product.

Machine-readable JSON

Reference information about drug-concept identifiers and public regulatory data — not medical advice. Talk to your pharmacist or prescriber about your own medication.