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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
314034 Haloperidol 2 MG Oral Tablet SCD Clinical drug 105 173 View →
860975 24 HR metformin hydrochloride 500 MG Extended Release Oral Tablet SCD Clinical drug 104 396 View →
313583 24 HR venlafaxine 37.5 MG Extended Release Oral Capsule SCD Clinical drug 104 341 View →
349200 Valsartan 320 MG Oral Tablet SCD Clinical drug 104 300 View →
1297278 Lurasidone hydrochloride 120 MG Oral Tablet SCD Clinical drug 104 284 View →
200034 Olanzapine 2.5 MG Oral Tablet SCD Clinical drug 104 279 View →
993557 24 HR bupropion hydrochloride 300 MG Extended Release Oral Tablet SCD Clinical drug 104 276 View →
200031 Carvedilol 6.25 MG Oral Tablet SCD Clinical drug 104 273 View →
197319 Allopurinol 100 MG Oral Tablet SCD Clinical drug 104 265 View →
312950 Sildenafil 50 MG Oral Tablet SCD Clinical drug 104 262 View →
809987 Lacosamide 100 MG Oral Tablet SCD Clinical drug 104 241 View →
1242231 Lenalidomide 2.5 MG Oral Capsule SCD Clinical drug 104 182 View →
152695 Meloxicam 15 MG Oral Tablet SCD Clinical drug 103 386 View →
857002 Acetaminophen 325 MG / hydrocodone bitartrate 5 MG Oral Tablet SCD Clinical drug 103 354 View →
312940 Sertraline 25 MG Oral Tablet SCD Clinical drug 103 328 View →
349483 Valsartan 40 MG Oral Tablet SCD Clinical drug 103 291 View →
596926 Duloxetine 20 MG Delayed Release Oral Capsule SCD Clinical drug 103 289 View →
810000 Lacosamide 50 MG Oral Tablet SCD Clinical drug 103 242 View →
809996 Lacosamide 200 MG Oral Tablet SCD Clinical drug 103 241 View →
312829 Risperidone 0.5 MG Oral Tablet SCD Clinical drug 103 224 View →
856853 Amitriptyline hydrochloride 75 MG Oral Tablet SCD Clinical drug 103 204 View →
1000097 Doxepin 75 MG Oral Capsule SCD Clinical drug 103 179 View →
310671 Haloperidol 1 MG Oral Tablet SCD Clinical drug 103 172 View →
310670 Haloperidol 0.5 MG Oral Tablet SCD Clinical drug 103 171 View →
313029 Sodium fluoride 0.2 MG/ML Mouthwash SCD Clinical drug 103 144 View →
313581 24 HR venlafaxine 150 MG Extended Release Oral Capsule SCD Clinical drug 102 332 View →
283639 Olanzapine 20 MG Oral Tablet SCD Clinical drug 102 273 View →
876193 Polyethylene glycol 3350 17000 MG Powder for Oral Solution SCD Clinical drug 102 270 View →
562508 Amoxicillin 875 MG / clavulanate 125 MG Oral Tablet SCD Clinical drug 102 206 View →
476973 Menthol 5.8 MG Oral Lozenge SCD Clinical drug 102 119 View →
310384 Fluoxetine 10 MG Oral Capsule SCD Clinical drug 101 299 View →
1009145 Amphetamine aspartate 1.875 MG / amphetamine sulfate 1.875 MG / dextroamphetamine sacchara... SCD Clinical drug 101 160 View →
311998 Nitrogen 99 % Gas for Inhalation SCD Clinical drug 100 767 View →
198223 Spironolactone 50 MG Oral Tablet SCD Clinical drug 100 311 View →
200032 Carvedilol 12.5 MG Oral Tablet SCD Clinical drug 100 278 View →
349401 Olmesartan medoxomil 20 MG Oral Tablet SCD Clinical drug 100 278 View →
312077 Olanzapine 15 MG Oral Tablet SCD Clinical drug 100 271 View →
686924 Carvedilol 3.125 MG Oral Tablet SCD Clinical drug 100 260 View →
866419 24 HR metoprolol succinate 200 MG Extended Release Oral Tablet SCD Clinical drug 100 255 View →
904458 Pravastatin sodium 10 MG Oral Tablet SCD Clinical drug 100 196 View →
197754 Haloperidol 20 MG Oral Tablet SCD Clinical drug 100 168 View →
349595 Atomoxetine 60 MG Oral Capsule SCD Clinical drug 100 144 View →
349593 Atomoxetine 25 MG Oral Capsule SCD Clinical drug 100 142 View →
1725078 10 ML bupivacaine hydrochloride 2.5 MG/ML Injection SCD Clinical drug 100 120 View →
1731582 1 ML glycopyrrolate 0.2 MG/ML Injection SCD Clinical drug 100 110 View →
995666 Meclizine hydrochloride 25 MG Oral Tablet SCD Clinical drug 99 217 View →
312832 Risperidone 3 MG Oral Tablet SCD Clinical drug 99 215 View →
1797907 Fluticasone propionate 0.05 MG/ACTUAT Metered Dose Nasal Spray SCD Clinical drug 99 198 View →
860918 Fluphenazine hydrochloride 5 MG Oral Tablet SCD Clinical drug 99 175 View →
312961 Simvastatin 20 MG Oral Tablet SCD Clinical drug 98 295 View →
313989 Fluoxetine 40 MG Oral Capsule SCD Clinical drug 98 280 View →
809992 Lacosamide 150 MG Oral Tablet SCD Clinical drug 98 235 View →
905225 Hydralazine hydrochloride 25 MG Oral Tablet SCD Clinical drug 98 200 View →
197627 Doxazosin 4 MG Oral Tablet SCD Clinical drug 98 175 View →
1049214 Acetaminophen 325 MG / oxycodone hydrochloride 10 MG Oral Tablet SCD Clinical drug 97 308 View →
212033 Aspirin 325 MG Oral Tablet SCD Clinical drug 97 175 View →
865117 Fluphenazine hydrochloride 1 MG Oral Tablet SCD Clinical drug 97 172 View →
313413 Tizanidine 4 MG Oral Tablet SCD Clinical drug 96 350 View →
856999 Acetaminophen 325 MG / hydrocodone bitartrate 10 MG Oral Tablet SCD Clinical drug 96 314 View →
856773 Amitriptyline hydrochloride 150 MG Oral Tablet SCD Clinical drug 96 183 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.