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RxCUI Directory

An RxCUI is the U.S. National Library of Medicine’s universal ID for one drug concept — an ingredient, a brand name, or a specific strength-and-form combination. Every concept page here connects that identifier to its FDA-listed products, package NDCs, NADAC pricing, and HCPCS billing codes, so other pages on this site can link a code straight to its meaning.

This page is curated, coded, and maintained by

Compiled from the public NLM RxNorm vocabulary and the FDA openFDA NDC directory. Editorial policy

One page for every drug concept in current FDA listings. Most are clinical drugs (TTY SCD: ingredient + strength + dose form, like ibuprofen 200 MG oral tablet) and branded drugs (SBD: the same drug under its brand name), plus multi-drug packs. The clinical drug is the anchor level where products, package NDCs, pricing, and billing line up.

Key Stats

16,643
Drug concepts
83,174
FDA products mapped
368,539
Package NDCs
Jul 14, 2026
Source data

Our RxCUI Database: Every Drug Concept Behind Current FDA Listings

What an RxCUI is, what a TTY is, and how to read every code in this directory — a two-minute primer. New to RxCUIs? Start here

Two things run this whole directory: the RxCUI and its TTY. An RxCUI is just a number — one number for one exact drug concept in RxNorm (the U.S. National Library of Medicine’s standard drug vocabulary). But the numbers all look alike: 5640, 198440, 310965 — nothing in the digits tells you what any of them is.

That is the job of the TTY (term type).

The TTY is the label that says whether an RxCUI is a bare ingredient, a brand name, or an exact ingredient + strength + form. Same-looking numbers, completely different meanings — the TTY is the key. So the habit for every RxCUI is simple: read the number, then read the TTY.

Same Medicine, Several RxCUIs — the TTY Tells Them Apart

Ibuprofen isn’t one code. Each layer of it is its own RxCUI, and only the TTY says which layer you’re looking at:

5640TTY INibuprofen — the bare ingredient
310965TTY SCDibuprofen 200 MG oral tablet — one exact clinical drug
153010TTY BN“Advil” — the brand name is its own RxCUI, tagged BN
153008TTY SBDibuprofen 200 MG Oral Tablet [Advil] — the same clinical drug under its brand — is yet another, tagged SBD
The concept types (TTYs) you’ll see in this directory

Every browse row below shows its TTY — click any code to jump to its definition here.

The Active Ingredient

IN · PIN · MIN — the substance itself, before strength or form.
IN
Ingredient

The active drug substance itself — no strength, form, or brand attached. Example: ibuprofen.

PIN
Precise ingredient

A specific form of an ingredient, such as a particular salt. Example: ibuprofen lysine.

MIN
Ingredient combination

Two or more active ingredients named together. Example: amlodipine / valsartan.

Generic (Clinical) Drugs

SCD and friends — ingredient + strength + dose form, unbranded.
SCD
Clinical drug

Ingredient + strength + dose form, unbranded. Example: ibuprofen 200 MG oral tablet.

SCDC
Clinical drug component

An ingredient at a specific strength, before a dose form is added.

SCDF
Clinical dose form

An ingredient in a dose form, without a specific strength.

SCDG
Clinical drug group

A grouping of related clinical drugs.

Brand-Name Drugs

BN · SBD and friends — trade names and branded drugs.
BN
Brand name

A trade name for a drug. Example: Advil.

SBD
Branded drug

Brand + ingredient + strength + form. Example: ibuprofen 200 MG oral tablet [Advil].

SBDF
Branded dose form

A brand in a dose form, without a specific strength.

SBDG
Branded drug group

A grouping of related branded drugs.

Multi-Drug Packs

GPCK · BPCK — sets of drugs packaged and sold together.
GPCK
Generic pack

A set of generic drugs packaged together, such as a dose-taper pack.

BPCK
Branded pack

A branded multi-drug pack.

Dose-Form Vocabulary

DF · DFG — tablets, solutions, and their broader families.
DF
Dose form

A form a medicine takes — tablet, solution, injection, and so on.

DFG
Dose-form group

A broader family of related dose forms.

🕸️ Reading a Concept Web

This is the interactive map you’ll find on every concept page — here shown for ibuprofen. One RxCUI never lives alone: follow the path from the raw ingredient down to the exact strength-and-form concepts FDA products carry. Hover or focus any chip for what it means.
The example concept Ibuprofen RxCUI 5640

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

  1. Brand names (BN) 1

    BN, a brand name: the trade name alone — no strength, no form.

    • Advil 153010
  2. Dose form (DF) 1

    DF, a dose form: the bare form these come in — Oral Tablet is one concept shared by every oral-tablet drug, not unique to ibuprofen.

    • Oral Tablet 317541
  3. Clinical drugs (SCD) 4

    SCD, a clinical drug: ingredient + strength + dose form. The concept FDA product data attaches to most precisely.

    • Ibuprofen 200 MG Oral Tablet 310965
    • Ibuprofen 400 MG Oral Tablet 197805
    • Ibuprofen 600 MG Oral Tablet 197806
    • Ibuprofen 800 MG Oral Tablet 197807
  4. Branded drugs (SBD) 4

    SBD, a branded drug: that exact clinical drug under a brand name.

    • Ibuprofen 200 MG Oral Tablet [Advil] 153008
    • Ibuprofen 200 MG Oral Tablet [Genpril] 206886
    • Ibuprofen 600 MG Oral Tablet [Ibu] 206913
    • Ibuprofen 800 MG Oral Tablet [Ibu] 206917

A trimmed illustration for teaching. Every chip here is a real, verified RxNorm concept with its RxCUI printed. A real concept page draws the live web for its own RxCUI, one chip per stored related concept.
These are official RxNorm vocabulary relationships: how concepts name and organize the same drug. They do not establish therapeutic equivalence or substitutability. Two concepts appearing in one web is never a statement that products can be swapped.

Browse Concepts — 16,643 concepts in the current snapshot

TTY

Ordered by how many FDA products carry each concept. Clinical drugs (SCD: one exact ingredient + strength + dose form, such as ibuprofen 200 MG oral tablet) and branded drugs (SBD: the same drug under its brand name) lead the list, because those are the concepts FDA product listings name. The TTY column shows each row’s type — click any code to see what it means.

RxCUI Official name TTY Concept type Products Packages
809316 Benzoyl peroxide 40 MG/ML Medicated Liquid Soap SCD Clinical drug 6 8 View →
833234 Mesalamine 800 MG Delayed Release Oral Tablet SCD Clinical drug 6 8 View →
861668 Dihydroergotamine mesylate 0.5 MG/ACTUAT Metered Dose Nasal Spray SCD Clinical drug 6 8 View →
861672 1 ML dihydroergotamine mesylate 1 MG/ML Injection SCD Clinical drug 6 8 View →
864681 Atovaquone 62.5 MG / proguanil hydrochloride 25 MG Oral Tablet SCD Clinical drug 6 8 View →
967017 Imiquimod 37.5 MG/ML Topical Cream SCD Clinical drug 6 8 View →
967385 Amphotericin B liposomal 50 MG Injection SCD Clinical drug 6 8 View →
997170 Codeine sulfate 15 MG Oral Tablet SCD Clinical drug 6 8 View →
997287 Codeine sulfate 30 MG Oral Tablet SCD Clinical drug 6 8 View →
997296 Codeine sulfate 60 MG Oral Tablet SCD Clinical drug 6 8 View →
998442 Miconazole nitrate 0.02 MG/MG Topical Ointment SCD Clinical drug 6 8 View →
105260 Azithromycin 40 MG/ML Oral Suspension [Zithromax] SBD Branded drug 6 7 View →
1098616 Lidocaine 0.008 MG/MG Topical Gel SCD Clinical drug 6 7 View →
1116155 Menthol 10 MG/ML / pramoxine hydrochloride 10 MG/ML Topical Cream SCD Clinical drug 6 7 View →
1243052 Ivacaftor 150 MG Oral Tablet [Kalydeco] SBD Branded drug 6 7 View →
1245003 Eltrombopag 12.5 MG Oral Tablet [Promacta] SBD Branded drug 6 7 View →
1313112 Phenytoin 25 MG/ML Oral Suspension SCD Clinical drug 6 7 View →
1442986 Ibrutinib 140 MG Oral Capsule SCD Clinical drug 6 7 View →
1442992 Ibrutinib 140 MG Oral Capsule [Imbruvica] SBD Branded drug 6 7 View →
1542813 Tetracycline hydrochloride 0.03 MG/MG Topical Ointment SCD Clinical drug 6 7 View →
1606862 Ivacaftor 50 MG Oral Granules SCD Clinical drug 6 7 View →
1606866 Ivacaftor 50 MG Oral Granules [Kalydeco] SBD Branded drug 6 7 View →
1606870 Ivacaftor 75 MG Oral Granules [Kalydeco] SBD Branded drug 6 7 View →
1724666 20 ML aminophylline 25 MG/ML Injection SCD Clinical drug 6 7 View →
1727000 5 ML sugammadex 100 MG/ML Injection SCD Clinical drug 6 7 View →
1737723 250 ML lidocaine hydrochloride 8 MG/ML Injection SCD Clinical drug 6 7 View →
1738590 Hydrocortisone 250 MG Injection SCD Clinical drug 6 7 View →
1859501 Eltrombopag 25 MG Powder for Oral Suspension [Promacta] SBD Branded drug 6 7 View →
1866503 30 ML mepivacaine hydrochloride 10 MG/ML Injection SCD Clinical drug 6 7 View →
1868843 Methylcellulose 2000 MG Powder for Oral Suspension SCD Clinical drug 6 7 View →
1922783 Preservative-Free dorzolamide 20 MG/ML / timolol 5 MG/ML Ophthalmic Solution SCD Clinical drug 6 7 View →
199126 Tolnaftate 0.01 MG/MG Topical Ointment SCD Clinical drug 6 7 View →
1994360 Ibrutinib 70 MG Oral Capsule SCD Clinical drug 6 7 View →
1994362 Ibrutinib 70 MG Oral Capsule [Imbruvica] SBD Branded drug 6 7 View →
2000017 Ibrutinib 140 MG Oral Tablet SCD Clinical drug 6 7 View →
2000019 Ibrutinib 140 MG Oral Tablet [Imbruvica] SBD Branded drug 6 7 View →
2000021 Ibrutinib 280 MG Oral Tablet SCD Clinical drug 6 7 View →
2000023 Ibrutinib 280 MG Oral Tablet [Imbruvica] SBD Branded drug 6 7 View →
2000025 Ibrutinib 420 MG Oral Tablet SCD Clinical drug 6 7 View →
2000027 Ibrutinib 420 MG Oral Tablet [Imbruvica] SBD Branded drug 6 7 View →
2058981 Eltrombopag 12.5 MG Powder for Oral Suspension [Promacta] SBD Branded drug 6 7 View →
207346 Nitroglycerin 0.4 MG Sublingual Tablet [Nitrostat] SBD Branded drug 6 7 View →
2103184 1 ML vasopressin (USP) 20 UNT/ML Injection [Vasostrict] SBD Branded drug 6 7 View →
211307 Azithromycin 20 MG/ML Oral Suspension [Zithromax] SBD Branded drug 6 7 View →
2166399 Ivacaftor 25 MG Oral Granules SCD Clinical drug 6 7 View →
2166401 Ivacaftor 25 MG Oral Granules [Kalydeco] SBD Branded drug 6 7 View →
226827 Azithromycin 500 MG Oral Tablet [Zithromax] SBD Branded drug 6 7 View →
2370164 Selpercatinib 40 MG Oral Capsule SCD Clinical drug 6 7 View →
2370170 Selpercatinib 40 MG Oral Capsule [Retevmo] SBD Branded drug 6 7 View →
2370172 Selpercatinib 80 MG Oral Capsule SCD Clinical drug 6 7 View →
2370174 Selpercatinib 80 MG Oral Capsule [Retevmo] SBD Branded drug 6 7 View →
247324 Acetaminophen 500 MG / dextromethorphan hydrobromide 15 MG Oral Tablet SCD Clinical drug 6 7 View →
2480095 50 ML acetaminophen 10 MG/ML Injection SCD Clinical drug 6 7 View →
2611536 Ibrutinib 70 MG/ML Oral Suspension SCD Clinical drug 6 7 View →
2611540 Ibrutinib 70 MG/ML Oral Suspension [Imbruvica] SBD Branded drug 6 7 View →
2636787 Ivacaftor 13.4 MG Oral Granules SCD Clinical drug 6 7 View →
2636789 Ivacaftor 13.4 MG Oral Granules [Kalydeco] SBD Branded drug 6 7 View →
2636791 Ivacaftor 5.8 MG Oral Granules SCD Clinical drug 6 7 View →
2636793 Ivacaftor 5.8 MG Oral Granules [Kalydeco] SBD Branded drug 6 7 View →
2667457 Capsaicin 0.00025 MG/MG / lidocaine 0.0475 MG/MG Medicated Patch SCD Clinical drug 6 7 View →

Pages exist only for concepts observed on real FDA product listings.

Where does this data come from?
Concept identity, names, and relationships come from the NLM RxNorm vocabulary; product and package mappings from the FDA openFDA NDC Directory. Each directory generation is validated and published as one immutable snapshot. 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.