Home › NDC Lookup › RxCUI directory

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
2637727 {1 (acetaminophen 32.5 MG/ML / dextromethorphan hydrobromide 1 MG/ML / guaifenesin 20 MG/M... GPCK Generic pack 5 5 View →
2640404 0.8 ML adalimumab-fkjp 50 MG/ML Auto-Injector SCD Clinical drug 5 5 View →
2640412 0.4 ML adalimumab-fkjp 50 MG/ML Prefilled Syringe SCD Clinical drug 5 5 View →
2640417 0.8 ML adalimumab-fkjp 50 MG/ML Prefilled Syringe SCD Clinical drug 5 5 View →
2663960 Palovarotene 1 MG Oral Capsule SCD Clinical drug 5 5 View →
2663966 Palovarotene 1 MG Oral Capsule [Sohonos] SBD Branded drug 5 5 View →
2663968 Palovarotene 1.5 MG Oral Capsule SCD Clinical drug 5 5 View →
2663970 Palovarotene 1.5 MG Oral Capsule [Sohonos] SBD Branded drug 5 5 View →
2663972 Palovarotene 10 MG Oral Capsule SCD Clinical drug 5 5 View →
2663974 Palovarotene 10 MG Oral Capsule [Sohonos] SBD Branded drug 5 5 View →
2663976 Palovarotene 2.5 MG Oral Capsule SCD Clinical drug 5 5 View →
2663978 Palovarotene 2.5 MG Oral Capsule [Sohonos] SBD Branded drug 5 5 View →
2663980 Palovarotene 5 MG Oral Capsule SCD Clinical drug 5 5 View →
2663982 Palovarotene 5 MG Oral Capsule [Sohonos] SBD Branded drug 5 5 View →
2669663 Bosutinib 100 MG Oral Capsule SCD Clinical drug 5 5 View →
2669665 Bosutinib 50 MG Oral Capsule SCD Clinical drug 5 5 View →
2670166 Crizotinib 150 MG Oral Pellet SCD Clinical drug 5 5 View →
2670170 Crizotinib 150 MG Oral Pellet [Xalkori] SBD Branded drug 5 5 View →
2670172 Crizotinib 20 MG Oral Pellet SCD Clinical drug 5 5 View →
2670174 Crizotinib 20 MG Oral Pellet [Xalkori] SBD Branded drug 5 5 View →
2670176 Crizotinib 50 MG Oral Pellet SCD Clinical drug 5 5 View →
2670178 Crizotinib 50 MG Oral Pellet [Xalkori] SBD Branded drug 5 5 View →
2672326 Bosutinib 100 MG Oral Capsule [Bosulif] SBD Branded drug 5 5 View →
2672328 Bosutinib 50 MG Oral Capsule [Bosulif] SBD Branded drug 5 5 View →
2676954 {1 (acetaminophen 325 MG / dextromethorphan hydrobromide 10 MG Oral Capsule) / 1 (acetamin... GPCK Generic pack 5 5 View →
2683305 50 ML furosemide 10 MG/ML Injection SCD Clinical drug 5 5 View →
2683306 100 ML furosemide 10 MG/ML Injection SCD Clinical drug 5 5 View →
2683423 Dextromethorphan hydrobromide 10 MG / doxylamine succinate 6.25 MG Chewable Tablet SCD Clinical drug 5 5 View →
2685489 Ondansetron 16 MG Disintegrating Oral Tablet SCD Clinical drug 5 5 View →
2687211 {1 (acetaminophen 21.7 MG/ML / dextromethorphan hydrobromide 0.667 MG/ML / doxylamine succ... GPCK Generic pack 5 5 View →
2693442 Epinephrine 20 MG/ML Nasal Spray SCD Clinical drug 5 5 View →
2693448 Epinephrine 20 MG/ML Nasal Spray [Neffy] SBD Branded drug 5 5 View →
2695032 250 ML epinephrine 0.016 MG/ML Injection [Adrenalin] SBD Branded drug 5 5 View →
2707356 250 ML epinephrine 0.032 MG/ML Injection SCD Clinical drug 5 5 View →
2707359 250 ML epinephrine 0.032 MG/ML Injection [Adrenalin] SBD Branded drug 5 5 View →
2713737 250 ML epinephrine 0.02 MG/ML Injection SCD Clinical drug 5 5 View →
2713740 250 ML epinephrine 0.02 MG/ML Injection [Adrenalin] SBD Branded drug 5 5 View →
2719203 250 ML epinephrine 0.04 MG/ML Injection SCD Clinical drug 5 5 View →
2719204 250 ML epinephrine 0.04 MG/ML Injection [Adrenalin] SBD Branded drug 5 5 View →
2719206 250 ML epinephrine 0.008 MG/ML Injection SCD Clinical drug 5 5 View →
2719209 250 ML epinephrine 0.008 MG/ML Injection [Adrenalin] SBD Branded drug 5 5 View →
2726048 Lisdexamfetamine dimesylate 10 MG/ML Oral Solution SCD Clinical drug 5 5 View →
2726055 Lisdexamfetamine dimesylate 10 MG/ML Oral Solution [Arynta] SBD Branded drug 5 5 View →
2738809 Lomitapide 2 MG Oral Capsule SCD Clinical drug 5 5 View →
2738811 Lomitapide 2 MG Oral Capsule [Juxtapid] SBD Branded drug 5 5 View →
284378 84 HR estradiol 0.00104 MG/HR Transdermal System [Vivelle] SBD Branded drug 5 5 View →
284391 Levetiracetam 750 MG Oral Tablet [Keppra] SBD Branded drug 5 5 View →
308511 Bacitracin 0.5 UNT/MG / polymyxin B 10 UNT/MG Ophthalmic Ointment SCD Clinical drug 5 5 View →
308688 Benzoyl peroxide 25 MG/ML Topical Cream SCD Clinical drug 5 5 View →
309305 Ciprofloxacin 2 MG/ML / hydrocortisone 10 MG/ML Otic Suspension SCD Clinical drug 5 5 View →
309402 Coal tar 10 MG/ML Medicated Shampoo SCD Clinical drug 5 5 View →
309783 1000 ML glucose 50 MG/ML / potassium chloride 0.02 MEQ/ML Injection SCD Clinical drug 5 5 View →
310172 84 HR estradiol 0.00156 MG/HR Transdermal System [Vivelle] SBD Branded drug 5 5 View →
310176 84 HR estradiol 0.00208 MG/HR Transdermal System [Vivelle] SBD Branded drug 5 5 View →
310183 84 HR estradiol 0.00417 MG/HR Transdermal System [Vivelle] SBD Branded drug 5 5 View →
311369 Lopinavir 80 MG/ML / ritonavir 20 MG/ML Oral Solution SCD Clinical drug 5 5 View →
312644 Progesterone 50 MG/ML Injectable Solution SCD Clinical drug 5 5 View →
313227 Terconazole 8 MG/ML Vaginal Cream SCD Clinical drug 5 5 View →
313447 Tranylcypromine 10 MG Oral Tablet SCD Clinical drug 5 5 View →
349482 Sodium oxybate 500 MG/ML Oral Solution SCD Clinical drug 5 5 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.