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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
1101926 24 HR dexmethylphenidate hydrochloride 25 MG Extended Release Oral Capsule SCD Clinical drug 58 64 View →
1101932 24 HR dexmethylphenidate hydrochloride 35 MG Extended Release Oral Capsule SCD Clinical drug 58 64 View →
854255 Enoxaparin sodium 100 MG/ML Injectable Solution SCD Clinical drug 58 58 View →
311296 Levofloxacin 750 MG Oral Tablet SCD Clinical drug 57 185 View →
993536 12 HR bupropion hydrochloride 200 MG Extended Release Oral Tablet SCD Clinical drug 57 181 View →
317136 Nortriptyline 25 MG Oral Capsule SCD Clinical drug 57 155 View →
197885 Hydrochlorothiazide 12.5 MG / lisinopril 10 MG Oral Tablet SCD Clinical drug 57 151 View →
260243 Progesterone 100 MG Oral Capsule SCD Clinical drug 57 129 View →
1719286 10 ML furosemide 10 MG/ML Injection SCD Clinical drug 57 86 View →
283858 Ropinirole 3 MG Oral Tablet SCD Clinical drug 57 83 View →
1012396 Bupivacaine hydrochloride 2.5 MG/ML Injectable Solution SCD Clinical drug 57 74 View →
1234995 Rocuronium bromide 10 MG/ML Injectable Solution SCD Clinical drug 57 66 View →
312962 Simvastatin 5 MG Oral Tablet SCD Clinical drug 56 196 View →
979092 Hydroxychloroquine sulfate 200 MG Oral Tablet SCD Clinical drug 56 152 View →
991061 Dicyclomine hydrochloride 10 MG Oral Capsule SCD Clinical drug 56 141 View →
1812015 Osmotic 24 HR nifedipine 90 MG Extended Release Oral Tablet SCD Clinical drug 56 139 View →
415974 Menthol 0.04 MG/MG Topical Gel SCD Clinical drug 56 128 View →
730861 Amlodipine 10 MG / olmesartan medoxomil 20 MG Oral Tablet SCD Clinical drug 56 124 View →
730866 Amlodipine 10 MG / olmesartan medoxomil 40 MG Oral Tablet SCD Clinical drug 56 124 View →
730872 Amlodipine 5 MG / olmesartan medoxomil 40 MG Oral Tablet SCD Clinical drug 56 124 View →
198078 Perphenazine 8 MG Oral Tablet SCD Clinical drug 56 111 View →
898356 Amlodipine 5 MG / benazepril hydrochloride 20 MG Oral Capsule SCD Clinical drug 56 96 View →
1734207 20 ML ropivacaine hydrochloride 2 MG/ML Injection SCD Clinical drug 56 91 View →
312849 Ropinirole 5 MG Oral Tablet SCD Clinical drug 56 82 View →
141963 Azithromycin 40 MG/ML Oral Suspension SCD Clinical drug 56 69 View →
1718909 100 ML dexmedetomidine 0.004 MG/ML Injection SCD Clinical drug 56 63 View →
1871456 Lisdexamfetamine dimesylate 40 MG Chewable Tablet SCD Clinical drug 56 56 View →
1871460 Lisdexamfetamine dimesylate 30 MG Chewable Tablet SCD Clinical drug 56 56 View →
1871462 Lisdexamfetamine dimesylate 20 MG Chewable Tablet SCD Clinical drug 56 56 View →
1871464 Lisdexamfetamine dimesylate 10 MG Chewable Tablet SCD Clinical drug 56 56 View →
1871466 Lisdexamfetamine dimesylate 60 MG Chewable Tablet SCD Clinical drug 56 56 View →
1871468 Lisdexamfetamine dimesylate 50 MG Chewable Tablet SCD Clinical drug 56 56 View →
997223 Donepezil hydrochloride 10 MG Oral Tablet SCD Clinical drug 55 165 View →
403854 Hydrochlorothiazide 12.5 MG / olmesartan medoxomil 40 MG Oral Tablet SCD Clinical drug 55 144 View →
312440 Pioglitazone 30 MG Oral Tablet SCD Clinical drug 55 141 View →
858625 Pramipexole dihydrochloride 0.75 MG Oral Tablet SCD Clinical drug 55 132 View →
198077 Perphenazine 4 MG Oral Tablet SCD Clinical drug 55 110 View →
749783 {6 (azithromycin 250 MG Oral Tablet) } Pack GPCK Generic pack 55 102 View →
993691 Bupropion hydrochloride 75 MG Oral Tablet SCD Clinical drug 55 102 View →
1053346 Magnesium sulfate 1000 MG Granules for Oral Solution SCD Clinical drug 55 91 View →
1014675 Cetirizine hydrochloride 10 MG Oral Capsule SCD Clinical drug 55 90 View →
1734084 20 ML ropivacaine hydrochloride 10 MG/ML Injection SCD Clinical drug 55 87 View →
1719803 1 ML haloperidol decanoate 100 MG/ML Injection SCD Clinical drug 55 83 View →
259176 Ferrous fumarate 75 MG Oral Tablet SCD Clinical drug 55 83 View →
314221 Simethicone 125 MG Chewable Tablet SCD Clinical drug 55 76 View →
1718906 50 ML dexmedetomidine 0.004 MG/ML Injection SCD Clinical drug 55 62 View →
1006608 24 HR dexmethylphenidate hydrochloride 40 MG Extended Release Oral Capsule SCD Clinical drug 55 61 View →
1721476 Ampicillin 2000 MG Injection SCD Clinical drug 55 49 View →
199119 Omeprazole 10 MG Delayed Release Oral Capsule SCD Clinical drug 54 200 View →
834022 Ketorolac tromethamine 10 MG Oral Tablet SCD Clinical drug 54 158 View →
211365 Chlorhexidine gluconate 40 MG/ML Medicated Liquid Soap SCD Clinical drug 54 146 View →
808744 24 HR venlafaxine 150 MG Extended Release Oral Tablet SCD Clinical drug 54 135 View →
808748 24 HR venlafaxine 225 MG Extended Release Oral Tablet SCD Clinical drug 54 135 View →
898687 Benazepril hydrochloride 10 MG Oral Tablet SCD Clinical drug 54 112 View →
1737562 30 ML lidocaine hydrochloride 10 MG/ML Injection SCD Clinical drug 54 111 View →
616749 12 HR ranolazine 500 MG Extended Release Oral Tablet SCD Clinical drug 54 110 View →
313161 Sumatriptan 50 MG Oral Tablet SCD Clinical drug 54 106 View →
665078 Loratadine 5 MG Chewable Tablet SCD Clinical drug 54 81 View →
1597298 Acetaminophen 500 MG / caffeine 60 MG / pyrilamine maleate 15 MG Oral Tablet SCD Clinical drug 54 80 View →
198039 Nitroglycerin 0.4 MG Sublingual Tablet SCD Clinical drug 54 79 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.