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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
2641784 {58 (10 ML delandistrogene moxeparvovec-rokl 13300000000000 VECTOR-GENOMES/ML Injection) }... GPCK Generic pack 61 61 View →
2641785 {58 (10 ML delandistrogene moxeparvovec-rokl 13300000000000 VECTOR-GENOMES/ML Injection [E... BPCK Branded pack 61 61 View →
2641786 {59 (10 ML delandistrogene moxeparvovec-rokl 13300000000000 VECTOR-GENOMES/ML Injection) }... GPCK Generic pack 61 61 View →
2641787 {59 (10 ML delandistrogene moxeparvovec-rokl 13300000000000 VECTOR-GENOMES/ML Injection [E... BPCK Branded pack 61 61 View →
2641788 {60 (10 ML delandistrogene moxeparvovec-rokl 13300000000000 VECTOR-GENOMES/ML Injection) }... GPCK Generic pack 61 61 View →
2641789 {60 (10 ML delandistrogene moxeparvovec-rokl 13300000000000 VECTOR-GENOMES/ML Injection [E... BPCK Branded pack 61 61 View →
2641830 {61 (10 ML delandistrogene moxeparvovec-rokl 13300000000000 VECTOR-GENOMES/ML Injection) }... GPCK Generic pack 61 61 View →
2641831 {61 (10 ML delandistrogene moxeparvovec-rokl 13300000000000 VECTOR-GENOMES/ML Injection [E... BPCK Branded pack 61 61 View →
2641832 {62 (10 ML delandistrogene moxeparvovec-rokl 13300000000000 VECTOR-GENOMES/ML Injection) }... GPCK Generic pack 61 61 View →
2641833 {62 (10 ML delandistrogene moxeparvovec-rokl 13300000000000 VECTOR-GENOMES/ML Injection [E... BPCK Branded pack 61 61 View →
2641834 {63 (10 ML delandistrogene moxeparvovec-rokl 13300000000000 VECTOR-GENOMES/ML Injection) }... GPCK Generic pack 61 61 View →
2641835 {63 (10 ML delandistrogene moxeparvovec-rokl 13300000000000 VECTOR-GENOMES/ML Injection [E... BPCK Branded pack 61 61 View →
2641836 {64 (10 ML delandistrogene moxeparvovec-rokl 13300000000000 VECTOR-GENOMES/ML Injection) }... GPCK Generic pack 61 61 View →
2641837 {64 (10 ML delandistrogene moxeparvovec-rokl 13300000000000 VECTOR-GENOMES/ML Injection [E... BPCK Branded pack 61 61 View →
2641838 {65 (10 ML delandistrogene moxeparvovec-rokl 13300000000000 VECTOR-GENOMES/ML Injection) }... GPCK Generic pack 61 61 View →
2641839 {65 (10 ML delandistrogene moxeparvovec-rokl 13300000000000 VECTOR-GENOMES/ML Injection [E... BPCK Branded pack 61 61 View →
2641840 {66 (10 ML delandistrogene moxeparvovec-rokl 13300000000000 VECTOR-GENOMES/ML Injection) }... GPCK Generic pack 61 61 View →
2641841 {66 (10 ML delandistrogene moxeparvovec-rokl 13300000000000 VECTOR-GENOMES/ML Injection [E... BPCK Branded pack 61 61 View →
2641842 {67 (10 ML delandistrogene moxeparvovec-rokl 13300000000000 VECTOR-GENOMES/ML Injection) }... GPCK Generic pack 61 61 View →
2641843 {67 (10 ML delandistrogene moxeparvovec-rokl 13300000000000 VECTOR-GENOMES/ML Injection [E... BPCK Branded pack 61 61 View →
2641844 {68 (10 ML delandistrogene moxeparvovec-rokl 13300000000000 VECTOR-GENOMES/ML Injection) }... GPCK Generic pack 61 61 View →
2641845 {68 (10 ML delandistrogene moxeparvovec-rokl 13300000000000 VECTOR-GENOMES/ML Injection [E... BPCK Branded pack 61 61 View →
2641846 {69 (10 ML delandistrogene moxeparvovec-rokl 13300000000000 VECTOR-GENOMES/ML Injection) }... GPCK Generic pack 61 61 View →
2641847 {69 (10 ML delandistrogene moxeparvovec-rokl 13300000000000 VECTOR-GENOMES/ML Injection [E... BPCK Branded pack 61 61 View →
2641848 {70 (10 ML delandistrogene moxeparvovec-rokl 13300000000000 VECTOR-GENOMES/ML Injection) }... GPCK Generic pack 61 61 View →
2641849 {70 (10 ML delandistrogene moxeparvovec-rokl 13300000000000 VECTOR-GENOMES/ML Injection [E... BPCK Branded pack 61 61 View →
197902 Lorazepam 2 MG Oral Tablet SCD Clinical drug 60 204 View →
310490 Glipizide 5 MG Oral Tablet SCD Clinical drug 60 192 View →
309314 Citalopram 40 MG Oral Tablet SCD Clinical drug 60 181 View →
858813 Enalapril maleate 5 MG Oral Tablet SCD Clinical drug 60 134 View →
313778 Ziprasidone 80 MG Oral Capsule SCD Clinical drug 60 111 View →
1012100 Benzalkonium chloride 1.3 MG/ML / lidocaine hydrochloride 5 MG/ML Topical Cream SCD Clinical drug 60 100 View →
240651 Colloidal oatmeal 10 MG/ML Topical Cream SCD Clinical drug 60 94 View →
1719290 2 ML furosemide 10 MG/ML Injection SCD Clinical drug 60 90 View →
311671 Metolazone 5 MG Oral Tablet SCD Clinical drug 60 86 View →
672571 24 HR paliperidone 9 MG Extended Release Oral Tablet SCD Clinical drug 60 79 View →
1656815 Acetaminophen 325 MG / dextromethorphan hydrobromide 10 MG / guaifenesin 200 MG / phenylep... SCD Clinical drug 60 76 View →
1659149 Piperacillin 4000 MG / tazobactam 500 MG Injection SCD Clinical drug 60 60 View →
198148 Prednisone 50 MG Oral Tablet SCD Clinical drug 59 216 View →
993781 Acetaminophen 300 MG / codeine phosphate 30 MG Oral Tablet SCD Clinical drug 59 215 View →
314106 Metronidazole 250 MG Oral Tablet SCD Clinical drug 59 188 View →
197886 Hydrochlorothiazide 12.5 MG / lisinopril 20 MG Oral Tablet SCD Clinical drug 59 167 View →
197379 Atenolol 100 MG Oral Tablet SCD Clinical drug 59 164 View →
1801298 Microencapsulated potassium chloride 10 MEQ Extended Release Oral Tablet SCD Clinical drug 59 146 View →
485486 Tizanidine 2 MG Oral Capsule SCD Clinical drug 59 122 View →
993687 Bupropion hydrochloride 100 MG Oral Tablet SCD Clinical drug 59 111 View →
197500 Chlorthalidone 50 MG Oral Tablet SCD Clinical drug 59 109 View →
313777 Ziprasidone 60 MG Oral Capsule SCD Clinical drug 59 104 View →
1923426 Sotalol hydrochloride 80 MG Oral Tablet SCD Clinical drug 59 99 View →
197979 Metolazone 2.5 MG Oral Tablet SCD Clinical drug 59 83 View →
1012404 Bupivacaine hydrochloride 5 MG/ML Injectable Solution SCD Clinical drug 59 76 View →
197581 Dexamethasone 2 MG Oral Tablet SCD Clinical drug 59 74 View →
1659137 Piperacillin 3000 MG / tazobactam 375 MG Injection SCD Clinical drug 59 59 View →
884189 Clonidine hydrochloride 0.3 MG Oral Tablet SCD Clinical drug 58 158 View →
995624 Meclizine hydrochloride 12.5 MG Oral Tablet SCD Clinical drug 58 148 View →
730869 Amlodipine 5 MG / olmesartan medoxomil 20 MG Oral Tablet SCD Clinical drug 58 127 View →
1038929 Potassium nitrate 0.05 MG/MG / sodium fluoride 0.0024 MG/MG Toothpaste SCD Clinical drug 58 91 View →
359601 Guaifenesin 400 MG Oral Tablet SCD Clinical drug 58 85 View →
562704 Ropinirole 4 MG Oral Tablet SCD Clinical drug 58 84 View →
483325 Levonorgestrel 1.5 MG Oral Tablet SCD Clinical drug 58 65 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.