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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
198323 Trifluoperazine 10 MG Oral Tablet SCD Clinical drug 17 17 View →
2714234 {4 (iloperidone 1 MG Oral Tablet) / 2 (iloperidone 2 MG Oral Tablet) / 2 (iloperidone 6 MG... GPCK Generic pack 17 17 View →
2714235 {4 (iloperidone 1 MG Oral Tablet [Fanapt]) / 2 (iloperidone 2 MG Oral Tablet [Fanapt]) / 2... BPCK Branded pack 17 17 View →
2717558 Isopropyl alcohol 0.72 ML/ML Topical Spray SCD Clinical drug 17 17 View →
2720356 {6 (iloperidone 1 MG Oral Tablet) / 2 (iloperidone 2 MG Oral Tablet) / 2 (iloperidone 6 MG... GPCK Generic pack 17 17 View →
2720357 {6 (iloperidone 1 MG Oral Tablet [Fanapt]) / 2 (iloperidone 2 MG Oral Tablet [Fanapt]) / 2... BPCK Branded pack 17 17 View →
848726 Iloperidone 1 MG Oral Tablet [Fanapt] SBD Branded drug 17 17 View →
848730 Iloperidone 10 MG Oral Tablet [Fanapt] SBD Branded drug 17 17 View →
848734 Iloperidone 12 MG Oral Tablet [Fanapt] SBD Branded drug 17 17 View →
848738 Iloperidone 2 MG Oral Tablet [Fanapt] SBD Branded drug 17 17 View →
848742 Iloperidone 4 MG Oral Tablet [Fanapt] SBD Branded drug 17 17 View →
848746 Iloperidone 6 MG Oral Tablet [Fanapt] SBD Branded drug 17 17 View →
848750 Iloperidone 8 MG Oral Tablet [Fanapt] SBD Branded drug 17 17 View →
848751 {2 (iloperidone 1 MG Oral Tablet) / 2 (iloperidone 2 MG Oral Tablet) / 2 (iloperidone 4 MG... GPCK Generic pack 17 17 View →
848752 {2 (iloperidone 1 MG Oral Tablet [Fanapt]) / 2 (iloperidone 2 MG Oral Tablet [Fanapt]) / 2... BPCK Branded pack 17 17 View →
854236 0.4 ML enoxaparin sodium 100 MG/ML Prefilled Syringe [Lovenox] SBD Branded drug 17 17 View →
858599 200 ML nicardipine hydrochloride 0.1 MG/ML Injection SCD Clinical drug 17 17 View →
858603 200 ML nicardipine hydrochloride 0.2 MG/ML Injection SCD Clinical drug 17 17 View →
992774 Miconazole nitrate 1200 MG Vaginal Insert SCD Clinical drug 17 17 View →
992775 {1 (miconazole nitrate 1200 MG Vaginal Insert) / 1 (9000 MG) (miconazole nitrate 20 MG/ML... GPCK Generic pack 17 17 View →
1662285 300 ML linezolid 2 MG/ML Injection SCD Clinical drug 17 16 View →
2553501 0.5 ML semaglutide 0.5 MG/ML Auto-Injector SCD Clinical drug 17 13 View →
2553506 0.5 ML semaglutide 0.5 MG/ML Auto-Injector [Wegovy] SBD Branded drug 17 13 View →
310992 Indomethacin 75 MG Extended Release Oral Capsule SCD Clinical drug 16 65 View →
199322 Lamotrigine 50 MG Oral Tablet SCD Clinical drug 16 56 View →
249329 Lamotrigine 250 MG Oral Tablet SCD Clinical drug 16 56 View →
1549682 {42 (rivaroxaban 15 MG Oral Tablet) / 9 (rivaroxaban 20 MG Oral Tablet) } Pack GPCK Generic pack 16 54 View →
861132 24 HR alfuzosin hydrochloride 10 MG Extended Release Oral Tablet SCD Clinical drug 16 49 View →
198358 Felbamate 400 MG Oral Tablet SCD Clinical drug 16 46 View →
198359 Felbamate 600 MG Oral Tablet SCD Clinical drug 16 46 View →
1441416 0.4 ML methotrexate 50 MG/ML Auto-Injector SCD Clinical drug 16 39 View →
1053697 Nystatin 100 UNT/MG / triamcinolone acetonide 0.001 MG/MG Topical Ointment SCD Clinical drug 16 38 View →
646456 Nystatin 100 UNT/MG Topical Powder SCD Clinical drug 16 38 View →
833204 Dexlansoprazole 30 MG Delayed Release Oral Capsule SCD Clinical drug 16 37 View →
402246 Atazanavir 150 MG Oral Capsule SCD Clinical drug 16 36 View →
402247 Atazanavir 200 MG Oral Capsule SCD Clinical drug 16 36 View →
643019 Aripiprazole 10 MG Disintegrating Oral Tablet SCD Clinical drug 16 36 View →
643022 Aripiprazole 15 MG Disintegrating Oral Tablet SCD Clinical drug 16 36 View →
664741 Atazanavir 300 MG Oral Capsule SCD Clinical drug 16 36 View →
861204 Brimonidine tartrate 1 MG/ML Ophthalmic Solution SCD Clinical drug 16 36 View →
1437702 Albuterol 0.833 MG/ML / ipratropium bromide 0.167 MG/ML Inhalation Solution SCD Clinical drug 16 35 View →
905032 Risedronate sodium 30 MG Oral Tablet SCD Clinical drug 16 35 View →
905041 Risedronate sodium 5 MG Oral Tablet SCD Clinical drug 16 35 View →
1300791 24 HR mirabegron 25 MG Extended Release Oral Tablet SCD Clinical drug 16 34 View →
200132 Acarbose 25 MG Oral Tablet SCD Clinical drug 16 33 View →
1790122 Perampanel 0.5 MG/ML Oral Suspension SCD Clinical drug 16 32 View →
359493 Eletriptan 20 MG Oral Tablet SCD Clinical drug 16 32 View →
598025 Amoxicillin 250 MG Chewable Tablet SCD Clinical drug 16 32 View →
857183 Fosinopril sodium 20 MG Oral Tablet SCD Clinical drug 16 32 View →
2706319 Thyroid (USP) 45 MG Oral Tablet SCD Clinical drug 16 31 View →
2706325 Thyroid (USP) 75 MG Oral Tablet SCD Clinical drug 16 31 View →
197891 Lithium carbonate 300 MG Extended Release Oral Tablet SCD Clinical drug 16 28 View →
200258 Repaglinide 2 MG Oral Tablet SCD Clinical drug 16 28 View →
857560 Trospium chloride 20 MG Oral Tablet SCD Clinical drug 16 28 View →
1041780 Ethanol 0.62 ML/ML Medicated Pad SCD Clinical drug 16 27 View →
310463 Ethinyl estradiol 0.035 MG / norethindrone 0.5 MG Oral Tablet SCD Clinical drug 16 27 View →
603566 50 ML nelarabine 5 MG/ML Injection SCD Clinical drug 16 27 View →
1735003 2 ML fentanyl 0.05 MG/ML Injection SCD Clinical drug 16 26 View →
1741267 5 ML iron sucrose 20 MG/ML Injection SCD Clinical drug 16 26 View →
313979 Fludrocortisone acetate 0.1 MG Oral Tablet SCD Clinical drug 16 26 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.