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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
2672923 {21 (ethinyl estradiol 0.02 MG / levonorgestrel 0.1 MG Oral Tablet) / 7 (ferrous bisglycin... GPCK Generic pack 3 6 View →
2679499 0.5 ML benralizumab 20 MG/ML Prefilled Syringe SCD Clinical drug 3 6 View →
2679502 0.5 ML benralizumab 20 MG/ML Prefilled Syringe [Fasenra] SBD Branded drug 3 6 View →
2687710 Roflumilast 1.5 MG/ML Topical Cream SCD Clinical drug 3 6 View →
2687712 Roflumilast 1.5 MG/ML Topical Cream [Zoryve] SBD Branded drug 3 6 View →
2705406 Vimseltinib 14 MG Oral Capsule SCD Clinical drug 3 6 View →
2705412 Vimseltinib 14 MG Oral Capsule [Romvimza] SBD Branded drug 3 6 View →
2705414 Vimseltinib 20 MG Oral Capsule SCD Clinical drug 3 6 View →
2705416 Vimseltinib 20 MG Oral Capsule [Romvimza] SBD Branded drug 3 6 View →
2705418 Vimseltinib 30 MG Oral Capsule SCD Clinical drug 3 6 View →
2705420 Vimseltinib 30 MG Oral Capsule [Romvimza] SBD Branded drug 3 6 View →
2714180 Buspirone hydrochloride 7.5 MG Oral Capsule [Bucapsol] SBD Branded drug 3 6 View →
2714182 Buspirone hydrochloride 10 MG Oral Capsule [Bucapsol] SBD Branded drug 3 6 View →
2714184 Buspirone hydrochloride 15 MG Oral Capsule [Bucapsol] SBD Branded drug 3 6 View →
2724369 {2 (1 ML certolizumab pegol 200 MG/ML Prefilled Syringe) } Pack GPCK Generic pack 3 6 View →
2724370 {2 (1 ML certolizumab pegol 200 MG/ML Prefilled Syringe [Cimzia]) } Pack [Cimzia (2 count)... BPCK Branded pack 3 6 View →
2724371 {6 (1 ML certolizumab pegol 200 MG/ML Prefilled Syringe) } Pack GPCK Generic pack 3 6 View →
2724372 {6 (1 ML certolizumab pegol 200 MG/ML Prefilled Syringe [Cimzia]) } Pack [Cimzia Starter K... BPCK Branded pack 3 6 View →
2725121 Roflumilast 0.5 MG/ML Topical Cream SCD Clinical drug 3 6 View →
2725123 Roflumilast 0.5 MG/ML Topical Cream [Zoryve] SBD Branded drug 3 6 View →
284404 Dofetilide 0.125 MG Oral Capsule [Tikosyn] SBD Branded drug 3 6 View →
284405 Dofetilide 0.25 MG Oral Capsule [Tikosyn] SBD Branded drug 3 6 View →
285016 Dofetilide 0.5 MG Oral Capsule [Tikosyn] SBD Branded drug 3 6 View →
309095 Cefuroxime 125 MG Oral Tablet SCD Clinical drug 3 6 View →
310230 Ethinyl estradiol 0.03 MG / levonorgestrel 0.05 MG Oral Tablet SCD Clinical drug 3 6 View →
311509 Menthol 0.07 MG/MG Topical Gel SCD Clinical drug 3 6 View →
312013 Nitroglycerin 2.5 MG Extended Release Oral Capsule SCD Clinical drug 3 6 View →
312018 Nitroglycerin 6.5 MG Extended Release Oral Capsule SCD Clinical drug 3 6 View →
312020 Nitroglycerin 9 MG Extended Release Oral Capsule SCD Clinical drug 3 6 View →
313142 Sulfasalazine 500 MG Delayed Release Oral Tablet SCD Clinical drug 3 6 View →
313800 Ampicillin 250 MG Oral Capsule SCD Clinical drug 3 6 View →
348804 Ethinyl estradiol 0.03 MG / levonorgestrel 0.125 MG Oral Tablet SCD Clinical drug 3 6 View →
348805 Ethinyl estradiol 0.04 MG / levonorgestrel 0.075 MG Oral Tablet SCD Clinical drug 3 6 View →
429662 Rifaximin 200 MG Oral Tablet SCD Clinical drug 3 6 View →
539789 Rifaximin 200 MG Oral Tablet [XIFAXAN] SBD Branded drug 3 6 View →
543786 Benzocaine 140 MG/ML / butamben 20 MG/ML / tetracaine 20 MG/ML Mucous Membrane Topical Sol... SCD Clinical drug 3 6 View →
543789 Benzocaine 140 MG/ML / butamben 20 MG/ML / tetracaine 20 MG/ML Mucous Membrane Topical Sol... SBD Branded drug 3 6 View →
729929 24 HR venlafaxine 75 MG Extended Release Oral Capsule [Effexor] SBD Branded drug 3 6 View →
729931 24 HR venlafaxine 150 MG Extended Release Oral Capsule [Effexor] SBD Branded drug 3 6 View →
729932 24 HR venlafaxine 37.5 MG Extended Release Oral Capsule [Effexor] SBD Branded drug 3 6 View →
748832 {6 (ethinyl estradiol 0.03 MG / levonorgestrel 0.05 MG Oral Tablet) / 10 (ethinyl estradio... GPCK Generic pack 3 6 View →
795081 Certolizumab pegol 200 MG Injection SCD Clinical drug 3 6 View →
795085 Certolizumab pegol 200 MG Injection [Cimzia] SBD Branded drug 3 6 View →
797500 Camphor 0.05 MG/MG / menthol 0.05 MG/MG Topical Gel SCD Clinical drug 3 6 View →
808357 Benzocaine 200 MG/ML Mucosal Spray [Hurricaine] SBD Branded drug 3 6 View →
831215 24 HR diltiazem hydrochloride 120 MG Extended Release Oral Capsule [Dilt] SBD Branded drug 3 6 View →
831252 24 HR diltiazem hydrochloride 180 MG Extended Release Oral Capsule [Dilt] SBD Branded drug 3 6 View →
831285 24 HR diltiazem hydrochloride 240 MG Extended Release Oral Capsule [Dilt] SBD Branded drug 3 6 View →
846127 Chlorhexidine gluconate 20 MG/ML Medicated Pad SCD Clinical drug 3 6 View →
848178 Augmented betamethasone 0.5 MG/ML Topical Lotion SCD Clinical drug 3 6 View →
849597 1 ML certolizumab pegol 200 MG/ML Prefilled Syringe SCD Clinical drug 3 6 View →
849599 1 ML certolizumab pegol 200 MG/ML Prefilled Syringe [Cimzia] SBD Branded drug 3 6 View →
854140 Tapentadol 100 MG Oral Tablet [Nucynta] SBD Branded drug 3 6 View →
854142 Tapentadol 50 MG Oral Tablet [Nucynta] SBD Branded drug 3 6 View →
854144 Tapentadol 75 MG Oral Tablet [Nucynta] SBD Branded drug 3 6 View →
856664 Rifaximin 550 MG Oral Tablet SCD Clinical drug 3 6 View →
856666 Rifaximin 550 MG Oral Tablet [XIFAXAN] SBD Branded drug 3 6 View →
860195 OnabotulinumtoxinA 100 UNT Injection [Botox] SBD Branded drug 3 6 View →
866152 Lansoprazole 30 MG Disintegrating Oral Tablet [Prevacid] SBD Branded drug 3 6 View →
896231 60 ACTUAT fluticasone propionate 0.045 MG/ACTUAT / salmeterol 0.021 MG/ACTUAT Metered Dose... SCD Clinical drug 3 6 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.