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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
1987734 Bosutinib 400 MG Oral Tablet [Bosulif] SBD Branded drug 6 6 View →
1989799 1 ML emicizumab-kxwh 30 MG/ML Injection SCD Clinical drug 6 6 View →
1989804 1 ML emicizumab-kxwh 30 MG/ML Injection [Hemlibra] SBD Branded drug 6 6 View →
1989809 0.7 ML emicizumab-kxwh 150 MG/ML Injection SCD Clinical drug 6 6 View →
1989811 0.7 ML emicizumab-kxwh 150 MG/ML Injection [Hemlibra] SBD Branded drug 6 6 View →
1989814 0.4 ML emicizumab-kxwh 150 MG/ML Injection SCD Clinical drug 6 6 View →
1989815 0.4 ML emicizumab-kxwh 150 MG/ML Injection [Hemlibra] SBD Branded drug 6 6 View →
1989816 1 ML emicizumab-kxwh 150 MG/ML Injection SCD Clinical drug 6 6 View →
1989817 1 ML emicizumab-kxwh 150 MG/ML Injection [Hemlibra] SBD Branded drug 6 6 View →
1992043 Benzocaine 0.2 MG/MG Oral Gel [Candee Caine] SBD Branded drug 6 6 View →
199603 Clotrimazole 20 MG/ML Vaginal Cream SCD Clinical drug 6 6 View →
199632 Sulfur 30 MG/ML Topical Cream SCD Clinical drug 6 6 View →
200342 Hydroxyurea 200 MG Oral Capsule SCD Clinical drug 6 6 View →
200343 Hydroxyurea 300 MG Oral Capsule SCD Clinical drug 6 6 View →
200344 Hydroxyurea 400 MG Oral Capsule SCD Clinical drug 6 6 View →
2052605 Tacrolimus 0.2 MG Granules for Oral Suspension SCD Clinical drug 6 6 View →
2052609 Tacrolimus 0.2 MG Granules for Oral Suspension [Prograf] SBD Branded drug 6 6 View →
2052703 Tacrolimus 1 MG Granules for Oral Suspension SCD Clinical drug 6 6 View →
2052704 Tacrolimus 1 MG Granules for Oral Suspension [Prograf] SBD Branded drug 6 6 View →
2056073 {1 (dextromethorphan hydrobromide 1 MG/ML / guaifenesin 20 MG/ML Oral Solution) / 1 (dextr... GPCK Generic pack 6 6 View →
205641 Dronabinol 2.5 MG Oral Capsule [Marinol] SBD Branded drug 6 6 View →
205642 Dronabinol 5 MG Oral Capsule [Marinol] SBD Branded drug 6 6 View →
205645 Dronabinol 10 MG Oral Capsule [Marinol] SBD Branded drug 6 6 View →
205964 Clindamycin 150 MG/ML Injectable Solution SCD Clinical drug 6 6 View →
206771 Lisinopril 40 MG Oral Tablet [Zestril] SBD Branded drug 6 6 View →
2102703 0.6 ML pegfilgrastim-cbqv 10 MG/ML Prefilled Syringe SCD Clinical drug 6 6 View →
2102705 0.6 ML pegfilgrastim-cbqv 10 MG/ML Prefilled Syringe [Udenyca] SBD Branded drug 6 6 View →
2110774 84 HR estradiol 0.00104 MG/HR Transdermal System [Dotti] SBD Branded drug 6 6 View →
2110777 84 HR estradiol 0.00156 MG/HR Transdermal System [Dotti] SBD Branded drug 6 6 View →
2110780 84 HR estradiol 0.00208 MG/HR Transdermal System [Dotti] SBD Branded drug 6 6 View →
2110783 84 HR estradiol 0.00313 MG/HR Transdermal System [Dotti] SBD Branded drug 6 6 View →
2110786 84 HR estradiol 0.00417 MG/HR Transdermal System [Dotti] SBD Branded drug 6 6 View →
213282 Hydroxyurea 200 MG Oral Capsule [Droxia] SBD Branded drug 6 6 View →
213283 Hydroxyurea 300 MG Oral Capsule [Droxia] SBD Branded drug 6 6 View →
213284 Hydroxyurea 400 MG Oral Capsule [Droxia] SBD Branded drug 6 6 View →
213471 Modafinil 200 MG Oral Tablet [Provigil] SBD Branded drug 6 6 View →
213482 Lisinopril 30 MG Oral Tablet [Zestril] SBD Branded drug 6 6 View →
2174388 Ivacaftor 75 MG Oral Tablet SCD Clinical drug 6 6 View →
226426 Modafinil 100 MG Oral Tablet [Provigil] SBD Branded drug 6 6 View →
2288429 {3 (5000 MG) (miconazole nitrate 40 MG/ML Vaginal Cream) } Pack GPCK Generic pack 6 6 View →
2376942 Ursodiol 400 MG Oral Capsule SCD Clinical drug 6 6 View →
2467565 Berotralstat 150 MG Oral Capsule SCD Clinical drug 6 6 View →
2467571 Berotralstat 150 MG Oral Capsule [Orladeyo] SBD Branded drug 6 6 View →
2467573 Berotralstat 110 MG Oral Capsule SCD Clinical drug 6 6 View →
2467575 Berotralstat 110 MG Oral Capsule [Orladeyo] SBD Branded drug 6 6 View →
2473383 3 ML glycopyrrolate 0.2 MG/ML Prefilled Syringe SCD Clinical drug 6 6 View →
2478453 Amylase 15200 UNT / lipase 2600 UNT / protease 8800 UNT Delayed Release Oral Capsule SCD Clinical drug 6 6 View →
2478455 Amylase 15200 UNT / lipase 2600 UNT / protease 8800 UNT Delayed Release Oral Capsule [Panc... SBD Branded drug 6 6 View →
249364 20 ML cytarabine 100 MG/ML Injection SCD Clinical drug 6 6 View →
2564410 Amylase 149900 UNT / lipase 37000 UNT / protease 97300 UNT Delayed Release Oral Capsule SCD Clinical drug 6 6 View →
2564412 Amylase 149900 UNT / lipase 37000 UNT / protease 97300 UNT Delayed Release Oral Capsule [P... SBD Branded drug 6 6 View →
2571079 Maralixibat 9.5 MG/ML Oral Solution SCD Clinical drug 6 6 View →
2571085 Maralixibat 9.5 MG/ML Oral Solution [Livmarli] SBD Branded drug 6 6 View →
2587897 Nirmatrelvir 150 MG Oral Tablet SCD Clinical drug 6 6 View →
2587898 {20 (nirmatrelvir 150 MG Oral Tablet) / 10 (ritonavir 100 MG Oral Tablet) } Pack GPCK Generic pack 6 6 View →
2587899 {20 (nirmatrelvir 150 MG Oral Tablet) / 10 (ritonavir 100 MG Oral Tablet) } Pack [Paxlovid... BPCK Branded pack 6 6 View →
2590175 Treprostinil 20 MG/ML Injectable Solution SCD Clinical drug 6 6 View →
2590177 Treprostinil 20 MG/ML Injectable Solution [Remodulin] SBD Branded drug 6 6 View →
2590616 Dabigatran etexilate 110 MG Oral Pellet SCD Clinical drug 6 6 View →
2590619 Dabigatran etexilate 110 MG Oral Pellet [Pradaxa] SBD Branded drug 6 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.