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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
197582 Dexamethasone 4 MG Oral Tablet SCD Clinical drug 96 175 View →
859841 Fluphenazine hydrochloride 10 MG Oral Tablet SCD Clinical drug 96 171 View →
1010033 Lidocaine hydrochloride 10 MG/ML Injectable Solution SCD Clinical drug 96 153 View →
608139 Atomoxetine 100 MG Oral Capsule SCD Clinical drug 96 138 View →
1045402 Dasatinib 140 MG Oral Tablet SCD Clinical drug 96 102 View →
1045406 Dasatinib 80 MG Oral Tablet SCD Clinical drug 96 102 View →
643105 Dasatinib 20 MG Oral Tablet SCD Clinical drug 96 102 View →
643107 Dasatinib 50 MG Oral Tablet SCD Clinical drug 96 102 View →
643109 Dasatinib 70 MG Oral Tablet SCD Clinical drug 96 102 View →
799047 Dasatinib 100 MG Oral Tablet SCD Clinical drug 96 102 View →
197397 Benzonatate 100 MG Oral Capsule SCD Clinical drug 95 350 View →
349332 Escitalopram 10 MG Oral Tablet SCD Clinical drug 95 277 View →
351250 Escitalopram 20 MG Oral Tablet SCD Clinical drug 95 266 View →
420222 Menthol 0.05 MG/MG Medicated Patch SCD Clinical drug 95 171 View →
865123 Fluphenazine hydrochloride 2.5 MG Oral Tablet SCD Clinical drug 95 170 View →
197626 Doxazosin 2 MG Oral Tablet SCD Clinical drug 95 161 View →
993470 Midodrine hydrochloride 5 MG Oral Tablet SCD Clinical drug 95 139 View →
608143 Atomoxetine 80 MG Oral Capsule SCD Clinical drug 95 137 View →
238212 Glycopyrrolate 0.2 MG/ML Injectable Solution SCD Clinical drug 95 105 View →
197699 Fluconazole 150 MG Oral Tablet SCD Clinical drug 94 242 View →
866111 Buspirone hydrochloride 7.5 MG Oral Tablet SCD Clinical drug 94 221 View →
314211 Risperidone 4 MG Oral Tablet SCD Clinical drug 94 211 View →
905395 Hydralazine hydrochloride 50 MG Oral Tablet SCD Clinical drug 94 186 View →
349591 Atomoxetine 10 MG Oral Capsule SCD Clinical drug 94 136 View →
198222 Spironolactone 100 MG Oral Tablet SCD Clinical drug 93 293 View →
198211 Simvastatin 40 MG Oral Tablet SCD Clinical drug 93 288 View →
312079 Olanzapine 7.5 MG Oral Tablet SCD Clinical drug 93 274 View →
310429 Furosemide 20 MG Oral Tablet SCD Clinical drug 93 263 View →
1737566 5 ML lidocaine hydrochloride 10 MG/ML Injection SCD Clinical drug 93 154 View →
349592 Atomoxetine 18 MG Oral Capsule SCD Clinical drug 93 135 View →
1113705 Acetaminophen 21.7 MG/ML / dextromethorphan hydrobromide 0.667 MG/ML / phenylephrine hydro... SCD Clinical drug 93 119 View →
998483 Miconazole nitrate 20 MG/ML Topical Cream SCD Clinical drug 93 112 View →
828320 Cyclobenzaprine hydrochloride 5 MG Oral Tablet SCD Clinical drug 92 362 View →
855332 Warfarin sodium 5 MG Oral Tablet SCD Clinical drug 92 266 View →
1724880 10 ML bupivacaine hydrochloride 5 MG/ML Injection SCD Clinical drug 92 112 View →
284245 Famotidine 40 MG Oral Tablet SCD Clinical drug 91 301 View →
855926 Diclofenac sodium 75 MG Delayed Release Oral Tablet SCD Clinical drug 91 301 View →
1049221 Acetaminophen 325 MG / oxycodone hydrochloride 5 MG Oral Tablet SCD Clinical drug 91 280 View →
197698 Fluconazole 100 MG Oral Tablet SCD Clinical drug 91 237 View →
314200 Pantoprazole 40 MG Delayed Release Oral Tablet SCD Clinical drug 91 226 View →
283417 Benzonatate 200 MG Oral Capsule SCD Clinical drug 90 343 View →
856373 Trazodone hydrochloride 100 MG Oral Tablet SCD Clinical drug 90 274 View →
313988 Furosemide 40 MG Oral Tablet SCD Clinical drug 90 246 View →
995281 Hydroxyzine hydrochloride 50 MG Oral Tablet SCD Clinical drug 90 244 View →
855302 Warfarin sodium 2 MG Oral Tablet SCD Clinical drug 90 242 View →
1656354 Sacubitril 97 MG / valsartan 103 MG Oral Tablet SCD Clinical drug 90 216 View →
312828 Risperidone 0.25 MG Oral Tablet SCD Clinical drug 90 211 View →
308753 Bisacodyl 5 MG Delayed Release Oral Tablet SCD Clinical drug 90 176 View →
991336 Chlorpromazine hydrochloride 50 MG Oral Tablet SCD Clinical drug 90 146 View →
991044 Chlorpromazine hydrochloride 100 MG Oral Tablet SCD Clinical drug 90 145 View →
991188 Chlorpromazine hydrochloride 200 MG Oral Tablet SCD Clinical drug 90 145 View →
991194 Chlorpromazine hydrochloride 25 MG Oral Tablet SCD Clinical drug 90 145 View →
311486 Meloxicam 7.5 MG Oral Tablet SCD Clinical drug 89 336 View →
311681 Metronidazole 500 MG Oral Tablet SCD Clinical drug 89 290 View →
199168 Phenobarbital 64.8 MG Oral Tablet SCD Clinical drug 89 224 View →
855312 Warfarin sodium 2.5 MG Oral Tablet SCD Clinical drug 89 222 View →
1656349 Sacubitril 49 MG / valsartan 51 MG Oral Tablet SCD Clinical drug 89 214 View →
1431245 Acetaminophen 21.7 MG/ML / dextromethorphan hydrobromide 0.667 MG/ML / doxylamine succinat... SCD Clinical drug 89 100 View →
857005 Acetaminophen 325 MG / hydrocodone bitartrate 7.5 MG Oral Tablet SCD Clinical drug 88 305 View →
856377 Trazodone hydrochloride 50 MG Oral Tablet SCD Clinical drug 88 292 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.