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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
2602766 Treprostinil 0.064 MG Inhalation Powder [Tyvaso] SBD Branded drug 18 18 View →
2602767 {112 (treprostinil 0.016 MG Inhalation Powder) / 84 (treprostinil 0.032 MG Inhalation Powd... GPCK Generic pack 18 18 View →
2602768 {112 (treprostinil 0.016 MG Inhalation Powder [Tyvaso]) / 84 (treprostinil 0.032 MG Inhala... BPCK Branded pack 18 18 View →
2602769 {112 (treprostinil 0.016 MG Inhalation Powder) / 112 (treprostinil 0.032 MG Inhalation Pow... GPCK Generic pack 18 18 View →
2602770 {112 (treprostinil 0.016 MG Inhalation Powder [Tyvaso]) / 112 (treprostinil 0.032 MG Inhal... BPCK Branded pack 18 18 View →
2602771 {16 (treprostinil 0.032 MG Inhalation Powder) / 16 (treprostinil 0.048 MG Inhalation Powde... GPCK Generic pack 18 18 View →
2602772 {16 (treprostinil 0.032 MG Inhalation Powder [Tyvaso]) / 16 (treprostinil 0.048 MG Inhalat... BPCK Branded pack 18 18 View →
2602773 {112 (treprostinil 0.032 MG Inhalation Powder) / 112 (treprostinil 0.048 MG Inhalation Pow... GPCK Generic pack 18 18 View →
2602774 {112 (treprostinil 0.032 MG Inhalation Powder [Tyvaso]) / 112 (treprostinil 0.048 MG Inhal... BPCK Branded pack 18 18 View →
2641906 {112 (treprostinil 0.032 MG Inhalation Powder) / 112 (treprostinil 0.064 MG Inhalation Pow... GPCK Generic pack 18 18 View →
2641907 {112 (treprostinil 0.032 MG Inhalation Powder [Tyvaso]) / 112 (treprostinil 0.064 MG Inhal... BPCK Branded pack 18 18 View →
2641911 {112 (treprostinil 0.048 MG Inhalation Powder) / 112 (treprostinil 0.064 MG Inhalation Pow... GPCK Generic pack 18 18 View →
2641912 {112 (treprostinil 0.048 MG Inhalation Powder [Tyvaso]) / 112 (treprostinil 0.064 MG Inhal... BPCK Branded pack 18 18 View →
2641913 {112 (treprostinil 0.016 MG Inhalation Powder) / 112 (treprostinil 0.048 MG Inhalation Pow... GPCK Generic pack 18 18 View →
2641914 {112 (treprostinil 0.016 MG Inhalation Powder [Tyvaso]) / 112 (treprostinil 0.048 MG Inhal... BPCK Branded pack 18 18 View →
2697737 Treprostinil 0.08 MG Inhalation Powder SCD Clinical drug 18 18 View →
2697739 Treprostinil 0.08 MG Inhalation Powder [Tyvaso] SBD Branded drug 18 18 View →
2727470 {112 (treprostinil 0.048 MG Inhalation Powder) / 112 (treprostinil 0.08 MG Inhalation Powd... GPCK Generic pack 18 18 View →
2727471 {112 (treprostinil 0.048 MG Inhalation Powder [Tyvaso]) / 112 (treprostinil 0.08 MG Inhala... BPCK Branded pack 18 18 View →
2727472 {112 (treprostinil 0.064 MG Inhalation Powder) / 112 (treprostinil 0.08 MG Inhalation Powd... GPCK Generic pack 18 18 View →
2727473 {112 (treprostinil 0.064 MG Inhalation Powder [Tyvaso]) / 112 (treprostinil 0.08 MG Inhala... BPCK Branded pack 18 18 View →
351114 5 ML zoledronic acid 0.8 MG/ML Injection SCD Clinical drug 18 18 View →
388311 12 HR carbamazepine 100 MG Extended Release Oral Capsule SCD Clinical drug 18 18 View →
410584 Sertraline 150 MG Oral Capsule SCD Clinical drug 18 18 View →
686418 Erythromycin ethylsuccinate 80 MG/ML Oral Suspension SCD Clinical drug 18 18 View →
728223 Maraviroc 150 MG Oral Tablet SCD Clinical drug 18 18 View →
728225 Maraviroc 300 MG Oral Tablet SCD Clinical drug 18 18 View →
312447 Piperacillin 200 MG/ML / tazobactam 25 MG/ML Injectable Solution SCD Clinical drug 18 17 View →
402010 Risperidone 25 MG Injection SCD Clinical drug 18 16 View →
402011 Risperidone 37.5 MG Injection SCD Clinical drug 18 16 View →
402012 Risperidone 50 MG Injection SCD Clinical drug 18 16 View →
347021 Nitrogen 99.5 % Gas for Inhalation SCD Clinical drug 17 146 View →
1148414 Petrolatum 0.999 MG/MG Topical Gel SCD Clinical drug 17 81 View →
993770 Acetaminophen 300 MG / codeine phosphate 15 MG Oral Tablet SCD Clinical drug 17 64 View →
836395 Acetaminophen 325 MG / tramadol hydrochloride 37.5 MG Oral Tablet SCD Clinical drug 17 54 View →
855657 24 HR diclofenac sodium 100 MG Extended Release Oral Tablet SCD Clinical drug 17 53 View →
485421 24 HR darifenacin 15 MG Extended Release Oral Tablet SCD Clinical drug 17 52 View →
485423 24 HR darifenacin 7.5 MG Extended Release Oral Tablet SCD Clinical drug 17 52 View →
994521 12 HR orphenadrine citrate 100 MG Extended Release Oral Tablet SCD Clinical drug 17 51 View →
799048 Doxycycline hyclate 150 MG Delayed Release Oral Tablet SCD Clinical drug 17 48 View →
800062 Calcium chloride 0.00014 MEQ/ML / glucose 1 MG/ML / magnesium chloride 0.0000245 MEQ/ML /... SCD Clinical drug 17 47 View →
800064 Calcium chloride 0.00014 MEQ/ML / glucose 1 MG/ML / magnesium chloride 0.0000245 MEQ/ML /... SBD Branded drug 17 47 View →
1100184 Donepezil hydrochloride 23 MG Oral Tablet SCD Clinical drug 17 45 View →
995686 Meclizine hydrochloride 50 MG Oral Tablet SCD Clinical drug 17 44 View →
1872091 Benzethonium chloride 0.001 MG/MG Medicated Bar Soap SCD Clinical drug 17 43 View →
578325 Candesartan cilexetil 16 MG / hydrochlorothiazide 12.5 MG Oral Tablet SCD Clinical drug 17 41 View →
578330 Candesartan cilexetil 32 MG / hydrochlorothiazide 12.5 MG Oral Tablet SCD Clinical drug 17 41 View →
802749 Candesartan cilexetil 32 MG / hydrochlorothiazide 25 MG Oral Tablet SCD Clinical drug 17 41 View →
315183 Potassium chloride 8 MEQ Extended Release Oral Capsule SCD Clinical drug 17 39 View →
828353 24 HR cyclobenzaprine hydrochloride 30 MG Extended Release Oral Capsule SCD Clinical drug 17 38 View →
1795250 1000 ML glucose 50 MG/ML / sodium chloride 4.5 MG/ML Injection SCD Clinical drug 17 37 View →
1795252 500 ML glucose 50 MG/ML / sodium chloride 4.5 MG/ML Injection SCD Clinical drug 17 37 View →
309076 Cefpodoxime 100 MG Oral Tablet SCD Clinical drug 17 37 View →
199149 Acarbose 50 MG Oral Tablet SCD Clinical drug 17 36 View →
994008 Esomeprazole 20 MG / naproxen 500 MG Delayed Release Oral Tablet SCD Clinical drug 17 36 View →
1300801 24 HR mirabegron 50 MG Extended Release Oral Tablet SCD Clinical drug 17 35 View →
1795344 500 ML glucose 50 MG/ML / sodium chloride 9 MG/ML Injection SCD Clinical drug 17 35 View →
1795346 1000 ML glucose 50 MG/ML / sodium chloride 9 MG/ML Injection SCD Clinical drug 17 35 View →
311727 Misoprostol 0.1 MG Oral Tablet SCD Clinical drug 17 33 View →
1731737 Benzalkonium chloride 5 MG/ML Medicated Liquid Soap SCD Clinical drug 17 32 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.