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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
1544488 Insulin, regular, human 8 UNT Inhalation Powder SCD Clinical drug 7 7 View →
1544490 Insulin, regular, human 8 UNT Inhalation Powder [Afrezza] SBD Branded drug 7 7 View →
1595448 Lidocaine 40 MG/ML / menthol 10 MG/ML Topical Spray SCD Clinical drug 7 7 View →
1595770 Abuse-Deterrent 24 HR hydrocodone bitartrate 120 MG Extended Release Oral Tablet SCD Clinical drug 7 7 View →
1599949 60 ACTUAT testosterone 30 MG/ACTUAT Topical Solution SCD Clinical drug 7 7 View →
1648770 Lomitapide 30 MG Oral Capsule SCD Clinical drug 7 7 View →
1648772 Lomitapide 30 MG Oral Capsule [Juxtapid] SBD Branded drug 7 7 View →
1654910 Insulin, regular, human 12 UNT Inhalation Powder SCD Clinical drug 7 7 View →
1654912 Insulin, regular, human 12 UNT Inhalation Powder [Afrezza] SBD Branded drug 7 7 View →
1660016 1 ML epinephrine 1 MG/ML Injection [Adrenalin] SBD Branded drug 7 7 View →
1716057 Buprenorphine 0.15 MG Buccal Film SCD Clinical drug 7 7 View →
1716063 Buprenorphine 0.15 MG Buccal Film [Belbuca] SBD Branded drug 7 7 View →
1716065 Buprenorphine 0.3 MG Buccal Film SCD Clinical drug 7 7 View →
1716067 Buprenorphine 0.3 MG Buccal Film [Belbuca] SBD Branded drug 7 7 View →
1716069 Buprenorphine 0.45 MG Buccal Film SCD Clinical drug 7 7 View →
1716071 Buprenorphine 0.45 MG Buccal Film [Belbuca] SBD Branded drug 7 7 View →
1716073 Buprenorphine 0.6 MG Buccal Film SCD Clinical drug 7 7 View →
1716075 Buprenorphine 0.6 MG Buccal Film [Belbuca] SBD Branded drug 7 7 View →
1716077 Buprenorphine 0.075 MG Buccal Film SCD Clinical drug 7 7 View →
1716079 Buprenorphine 0.075 MG Buccal Film [Belbuca] SBD Branded drug 7 7 View →
1716081 Buprenorphine 0.75 MG Buccal Film SCD Clinical drug 7 7 View →
1716083 Buprenorphine 0.75 MG Buccal Film [Belbuca] SBD Branded drug 7 7 View →
1716086 Buprenorphine 0.9 MG Buccal Film SCD Clinical drug 7 7 View →
1716090 Buprenorphine 0.9 MG Buccal Film [Belbuca] SBD Branded drug 7 7 View →
1720258 Cholecalciferol 5000 UNT / folic acid 1 MG Oral Tablet SCD Clinical drug 7 7 View →
1726097 Bendamustine hydrochloride 25 MG/ML Injectable Solution SCD Clinical drug 7 7 View →
1726204 Cilastatin 250 MG / imipenem 250 MG Injection SCD Clinical drug 7 7 View →
1731345 Deferoxamine mesylate 2000 MG Injection SCD Clinical drug 7 7 View →
1736543 250 ML esmolol hydrochloride 10 MG/ML Injection [Brevibloc] SBD Branded drug 7 7 View →
1791593 Ifosfamide 1000 MG Injection SCD Clinical drug 7 7 View →
1797847 Azelastine hydrochloride 0.137 MG/ACTUAT / fluticasone propionate 0.05 MG/ACTUAT Metered D... SCD Clinical drug 7 7 View →
1798387 {90 (insulin, regular, human 4 UNT Inhalation Powder) / 90 (insulin, regular, human 8 UNT... GPCK Generic pack 7 7 View →
1798388 {90 (insulin, regular, human 4 UNT Inhalation Powder [Afrezza]) / 90 (insulin, regular, hu... BPCK Branded pack 7 7 View →
1798389 1 ML heparin sodium, porcine 5000 UNT/ML Prefilled Syringe SCD Clinical drug 7 7 View →
1862101 {60 (insulin, regular, human 12 UNT Inhalation Powder) / 60 (insulin, regular, human 4 UNT... GPCK Generic pack 7 7 View →
1862102 {60 (insulin, regular, human 12 UNT Inhalation Powder [Afrezza]) / 60 (insulin, regular, h... BPCK Branded pack 7 7 View →
1868469 5 ML sodium bicarbonate 42 MG/ML Injection SCD Clinical drug 7 7 View →
1924316 100 ML edaravone 0.3 MG/ML Injection SCD Clinical drug 7 7 View →
197682 Ethosuximide 250 MG Oral Capsule SCD Clinical drug 7 7 View →
197694 Fenoprofen 200 MG Oral Capsule SCD Clinical drug 7 7 View →
197695 Fenoprofen 300 MG Oral Capsule SCD Clinical drug 7 7 View →
197741 Guaifenesin 200 MG Oral Tablet SCD Clinical drug 7 7 View →
198379 1 ML tacrolimus 5 MG/ML Injection SCD Clinical drug 7 7 View →
1987732 Bosutinib 400 MG Oral Tablet SCD Clinical drug 7 7 View →
2001568 BX Rating 24 HR methylphenidate hydrochloride 54 MG Extended Release Oral Tablet SCD Clinical drug 7 7 View →
2044355 Tolvaptan 15 MG Oral Tablet [Jynarque] SBD Branded drug 7 7 View →
2044357 Tolvaptan 30 MG Oral Tablet [Jynarque] SBD Branded drug 7 7 View →
2044361 Tolvaptan 45 MG Oral Tablet [Jynarque] SBD Branded drug 7 7 View →
2044365 Tolvaptan 60 MG Oral Tablet [Jynarque] SBD Branded drug 7 7 View →
2044369 Tolvaptan 90 MG Oral Tablet [Jynarque] SBD Branded drug 7 7 View →
2044967 {28 (tolvaptan 30 MG Oral Tablet [Jynarque]) / 28 (tolvaptan 60 MG Oral Tablet [Jynarque])... BPCK Branded pack 7 7 View →
2044969 {28 (tolvaptan 15 MG Oral Tablet [Jynarque]) / 28 (tolvaptan 45 MG Oral Tablet [Jynarque])... BPCK Branded pack 7 7 View →
2044971 {28 (tolvaptan 30 MG Oral Tablet [Jynarque]) / 28 (tolvaptan 90 MG Oral Tablet [Jynarque])... BPCK Branded pack 7 7 View →
2047621 1 ML epoetin alfa-epbx 40000 UNT/ML Injection SCD Clinical drug 7 7 View →
2047623 1 ML epoetin alfa-epbx 40000 UNT/ML Injection [Retacrit] SBD Branded drug 7 7 View →
205121 Mineral oil 1000 MG/ML Enema SCD Clinical drug 7 7 View →
2100028 {90 (insulin, regular, human 12 UNT Inhalation Powder) / 90 (insulin, regular, human 8 UNT... GPCK Generic pack 7 7 View →
2100029 {90 (insulin, regular, human 12 UNT Inhalation Powder [Afrezza]) / 90 (insulin, regular, h... BPCK Branded pack 7 7 View →
2104611 2 ML emapalumab-lzsg 5 MG/ML Injection SCD Clinical drug 7 7 View →
2104616 2 ML emapalumab-lzsg 5 MG/ML Injection [Gamifant] SBD Branded drug 7 7 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.