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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
1597570 Buprenorphine 11.4 MG / naloxone 2.9 MG Sublingual Tablet [Zubsolv] SBD Branded drug 12 12 View →
1597573 Buprenorphine 8.6 MG / naloxone 2.1 MG Sublingual Tablet SCD Clinical drug 12 12 View →
1597575 Buprenorphine 8.6 MG / naloxone 2.1 MG Sublingual Tablet [Zubsolv] SBD Branded drug 12 12 View →
1659195 500 ML heparin sodium, porcine 50 UNT/ML Injection SCD Clinical drug 12 12 View →
1665326 1 ML lorazepam 4 MG/ML Injection SCD Clinical drug 12 12 View →
1666338 Buprenorphine 2.9 MG / naloxone 0.71 MG Sublingual Tablet SCD Clinical drug 12 12 View →
1666385 Buprenorphine 2.9 MG / naloxone 0.71 MG Sublingual Tablet [Zubsolv] SBD Branded drug 12 12 View →
1726673 Bleomycin 15 UNT Injection SCD Clinical drug 12 12 View →
1726676 Bleomycin 30 UNT Injection SCD Clinical drug 12 12 View →
1729584 Remifentanil 2 MG Injection SCD Clinical drug 12 12 View →
1729710 Remifentanil 5 MG Injection SCD Clinical drug 12 12 View →
1736590 Dexrazoxane 500 MG Injection SCD Clinical drug 12 12 View →
1797867 Azelastine hydrochloride 0.137 MG/ACTUAT Metered Dose Nasal Spray SCD Clinical drug 12 12 View →
1798999 Nitisinone 20 MG Oral Capsule SCD Clinical drug 12 12 View →
1806185 50/50 Release 24 HR methylphenidate hydrochloride 60 MG Extended Release Oral Capsule SCD Clinical drug 12 12 View →
1864412 Buprenorphine 0.7 MG / naloxone 0.18 MG Sublingual Tablet SCD Clinical drug 12 12 View →
1864414 Buprenorphine 0.7 MG / naloxone 0.18 MG Sublingual Tablet [Zubsolv] SBD Branded drug 12 12 View →
1870964 Deflazacort 22.75 MG/ML Oral Suspension SCD Clinical drug 12 12 View →
1872447 50 ML sodium phosphate, dibasic 142 MG/ML / sodium phosphate, monobasic 276 MG/ML Injectio... SCD Clinical drug 12 12 View →
197634 Dronabinol 10 MG Oral Capsule SCD Clinical drug 12 12 View →
197797 Hydroxyurea 500 MG Oral Capsule SCD Clinical drug 12 12 View →
197894 Lomustine 10 MG Oral Capsule SCD Clinical drug 12 12 View →
197895 Lomustine 100 MG Oral Capsule SCD Clinical drug 12 12 View →
197896 Lomustine 40 MG Oral Capsule SCD Clinical drug 12 12 View →
198057 Oxazepam 10 MG Oral Capsule SCD Clinical drug 12 12 View →
198059 Oxazepam 30 MG Oral Capsule SCD Clinical drug 12 12 View →
199703 Cabergoline 0.5 MG Oral Tablet SCD Clinical drug 12 12 View →
207364 Minocycline 100 MG Oral Tablet SCD Clinical drug 12 12 View →
2099954 Talazoparib 1 MG Oral Capsule SCD Clinical drug 12 12 View →
2099956 Talazoparib 1 MG Oral Capsule [Talzenna] SBD Branded drug 12 12 View →
2120550 2 ML diazepam 5 MG/ML Prefilled Syringe SCD Clinical drug 12 12 View →
2173662 Acetaminophen 32.5 MG/ML / dextromethorphan hydrobromide 1 MG/ML / phenylephrine hydrochlo... SCD Clinical drug 12 12 View →
2178075 Tiopronin 100 MG Delayed Release Oral Tablet SCD Clinical drug 12 12 View →
238101 Lorazepam 4 MG/ML Injectable Solution SCD Clinical drug 12 12 View →
2386859 Cyclophosphamide 200 MG/ML Injectable Solution SCD Clinical drug 12 12 View →
240984 Ampicillin 100 MG/ML / sulbactam 50 MG/ML Injectable Solution SCD Clinical drug 12 12 View →
2591510 Talazoparib 0.5 MG Oral Capsule SCD Clinical drug 12 12 View →
2591512 Talazoparib 0.5 MG Oral Capsule [Talzenna] SBD Branded drug 12 12 View →
2640891 0.2 ML adalimumab-adbm 50 MG/ML Prefilled Syringe SCD Clinical drug 12 12 View →
2640893 0.4 ML adalimumab-adbm 50 MG/ML Prefilled Syringe SCD Clinical drug 12 12 View →
2640900 {4 (0.8 ML adalimumab-adbm 50 MG/ML Auto-Injector) } Pack GPCK Generic pack 12 12 View →
2640902 {6 (0.8 ML adalimumab-adbm 50 MG/ML Auto-Injector) } Pack GPCK Generic pack 12 12 View →
2680756 {4 (0.4 ML adalimumab-adbm 100 MG/ML Auto-Injector) } Pack GPCK Generic pack 12 12 View →
2680759 {6 (0.4 ML adalimumab-adbm 100 MG/ML Auto-Injector) } Pack GPCK Generic pack 12 12 View →
2700771 3.8 ML remestemcel-L-rknd 6680000 CELLS/ML Injection SCD Clinical drug 12 12 View →
2700778 3.8 ML remestemcel-L-rknd 6680000 CELLS/ML Injection [Ryoncil] SBD Branded drug 12 12 View →
2706549 {1 (3.8 ML remestemcel-L-rknd 6680000 CELLS/ML Injection) } Pack GPCK Generic pack 12 12 View →
2706550 {1 (3.8 ML remestemcel-L-rknd 6680000 CELLS/ML Injection [Ryoncil]) } Pack [Ryoncil Kit <... BPCK Branded pack 12 12 View →
2706551 {2 (3.8 ML remestemcel-L-rknd 6680000 CELLS/ML Injection) } Pack GPCK Generic pack 12 12 View →
2706552 {2 (3.8 ML remestemcel-L-rknd 6680000 CELLS/ML Injection [Ryoncil]) } Pack [Ryoncil Kit 12... BPCK Branded pack 12 12 View →
2706553 {3 (3.8 ML remestemcel-L-rknd 6680000 CELLS/ML Injection) } Pack GPCK Generic pack 12 12 View →
2706554 {3 (3.8 ML remestemcel-L-rknd 6680000 CELLS/ML Injection [Ryoncil]) } Pack [Ryoncil Kit 25... BPCK Branded pack 12 12 View →
2706555 {4 (3.8 ML remestemcel-L-rknd 6680000 CELLS/ML Injection) } Pack GPCK Generic pack 12 12 View →
2706556 {4 (3.8 ML remestemcel-L-rknd 6680000 CELLS/ML Injection [Ryoncil]) } Pack [Ryoncil Kit 37... BPCK Branded pack 12 12 View →
2706557 {5 (3.8 ML remestemcel-L-rknd 6680000 CELLS/ML Injection) } Pack GPCK Generic pack 12 12 View →
2706558 {5 (3.8 ML remestemcel-L-rknd 6680000 CELLS/ML Injection [Ryoncil]) } Pack [Ryoncil Kit 50... BPCK Branded pack 12 12 View →
2706559 {6 (3.8 ML remestemcel-L-rknd 6680000 CELLS/ML Injection) } Pack GPCK Generic pack 12 12 View →
2706560 {6 (3.8 ML remestemcel-L-rknd 6680000 CELLS/ML Injection [Ryoncil]) } Pack [Ryoncil Kit 62... BPCK Branded pack 12 12 View →
2706561 {7 (3.8 ML remestemcel-L-rknd 6680000 CELLS/ML Injection) } Pack GPCK Generic pack 12 12 View →
2706562 {7 (3.8 ML remestemcel-L-rknd 6680000 CELLS/ML Injection [Ryoncil]) } Pack [Ryoncil Kit 75... BPCK Branded pack 12 12 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.