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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
1010673 Lidocaine hydrochloride 20 MG/ML Injectable Solution [Xylocaine] SBD Branded drug 20 39 View →
104155 Glycerin 2000 MG Rectal Suppository SCD Clinical drug 20 39 View →
1737563 30 ML lidocaine hydrochloride 10 MG/ML Injection [Xylocaine] SBD Branded drug 20 39 View →
1737570 10 ML lidocaine hydrochloride 10 MG/ML Injection SCD Clinical drug 20 39 View →
1737571 10 ML lidocaine hydrochloride 10 MG/ML Injection [Xylocaine] SBD Branded drug 20 39 View →
203088 Ketoconazole 20 MG/ML Topical Cream SCD Clinical drug 20 39 View →
857336 Bethanechol chloride 5 MG Oral Tablet SCD Clinical drug 20 39 View →
857340 Bethanechol chloride 50 MG Oral Tablet SCD Clinical drug 20 39 View →
864706 Methadone hydrochloride 10 MG Oral Tablet SCD Clinical drug 20 39 View →
892345 Morphine sulfate 30 MG Extended Release Oral Capsule SCD Clinical drug 20 39 View →
892352 Morphine sulfate 60 MG Extended Release Oral Capsule SCD Clinical drug 20 39 View →
892554 Morphine sulfate 100 MG Extended Release Oral Capsule SCD Clinical drug 20 39 View →
892596 Morphine sulfate 20 MG Extended Release Oral Capsule SCD Clinical drug 20 39 View →
894801 Morphine sulfate 50 MG Extended Release Oral Capsule SCD Clinical drug 20 39 View →
894814 Morphine sulfate 80 MG Extended Release Oral Capsule SCD Clinical drug 20 39 View →
1737758 2 ML lidocaine hydrochloride 20 MG/ML Injection [Xylocaine] SBD Branded drug 20 38 View →
828373 Fenofibric acid 135 MG Delayed Release Oral Capsule SCD Clinical drug 20 35 View →
828379 Fenofibric acid 45 MG Delayed Release Oral Capsule SCD Clinical drug 20 35 View →
283100 Sodium phosphate, dibasic 59.3 MG/ML / sodium phosphate, monobasic 161 MG/ML Enema SCD Clinical drug 20 33 View →
197986 Minoxidil 10 MG Oral Tablet SCD Clinical drug 20 31 View →
198861 Sodium bicarbonate 650 MG Oral Tablet SCD Clinical drug 20 31 View →
1308428 Everolimus 2 MG Tablet for Oral Suspension SCD Clinical drug 20 30 View →
1308430 Everolimus 3 MG Tablet for Oral Suspension SCD Clinical drug 20 30 View →
1308432 Everolimus 5 MG Tablet for Oral Suspension SCD Clinical drug 20 30 View →
1534792 Lidocaine 50 MG/ML Topical Cream SCD Clinical drug 20 29 View →
1535454 Dextroamphetamine sulfate 20 MG Oral Tablet SCD Clinical drug 20 29 View →
1535470 Dextroamphetamine sulfate 30 MG Oral Tablet SCD Clinical drug 20 29 View →
198270 Thioridazine 100 MG Oral Tablet SCD Clinical drug 20 29 View →
198274 Thioridazine 25 MG Oral Tablet SCD Clinical drug 20 29 View →
198275 Thioridazine 50 MG Oral Tablet SCD Clinical drug 20 29 View →
313354 Thioridazine 10 MG Oral Tablet SCD Clinical drug 20 29 View →
647121 5 ML levetiracetam 100 MG/ML Injection SCD Clinical drug 20 29 View →
884684 Dextroamphetamine sulfate 15 MG Oral Tablet SCD Clinical drug 20 29 View →
1359023 {21 (ethinyl estradiol 0.03 MG / norethindrone acetate 1.5 MG Oral Tablet) / 7 (ferrous fu... GPCK Generic pack 20 28 View →
1489932 Methenamine 162 MG / sodium salicylate 162.5 MG Oral Tablet SCD Clinical drug 20 28 View →
283420 Hydrogen peroxide 30 MG/ML Topical Spray SCD Clinical drug 20 28 View →
895749 Benzocaine 60 MG/ML / isopropyl alcohol 0.6 ML/ML Medicated Pad SCD Clinical drug 20 27 View →
1860619 2 ML docetaxel 10 MG/ML Injection SCD Clinical drug 20 26 View →
197702 Flucytosine 250 MG Oral Capsule SCD Clinical drug 20 26 View →
197703 Flucytosine 500 MG Oral Capsule SCD Clinical drug 20 26 View →
1053429 Water 991 MG/ML Ophthalmic Irrigation Solution SCD Clinical drug 20 25 View →
1038856 Benzalkonium chloride 1 MG/ML Medicated Pad SCD Clinical drug 20 24 View →
1666798 2 ML midazolam 1 MG/ML Injection SCD Clinical drug 20 24 View →
1046700 Glycerin 2.5 MG/ML / naphazoline hydrochloride 0.12 MG/ML Ophthalmic Solution SCD Clinical drug 20 23 View →
1928567 5 ML dibasic potassium phosphate 236 MG/ML / monobasic potassium phosphate 224 MG/ML Injec... SCD Clinical drug 20 23 View →
200295 Witch hazel 860 MG/ML Topical Solution SCD Clinical drug 20 23 View →
308657 Benzocaine 200 MG/ML Mucous Membrane Topical Solution SCD Clinical drug 20 23 View →
313407 Timolol 0.0025 MG/MG Ophthalmic Gel SCD Clinical drug 20 22 View →
692576 Esomeprazole 20 MG Granules for Oral Suspension SCD Clinical drug 20 22 View →
692578 Esomeprazole 40 MG Granules for Oral Suspension SCD Clinical drug 20 22 View →
858607 10 ML nicardipine hydrochloride 2.5 MG/ML Injection SCD Clinical drug 20 22 View →
863538 Penicillin G potassium 1000000 UNT/ML Injectable Solution SCD Clinical drug 20 22 View →
979432 100 ML esmolol hydrochloride 20 MG/ML Injection SCD Clinical drug 20 22 View →
1734683 Ertapenem 1000 MG Injection SCD Clinical drug 20 21 View →
1863607 500 ML glucose 50 MG/ML / potassium chloride 0.02 MEQ/ML / sodium chloride 4.5 MG/ML Injec... SCD Clinical drug 20 21 View →
1597076 60 ACTUAT testosterone 20.25 MG/ACTUAT Topical Gel SCD Clinical drug 20 20 View →
1736470 10 ML eptifibatide 2 MG/ML Injection SCD Clinical drug 20 20 View →
1809903 Ethanol 0.7 ML/ML Topical Lotion SCD Clinical drug 20 20 View →
200131 12 HR carbamazepine 300 MG Extended Release Oral Capsule SCD Clinical drug 20 20 View →
309335 50 ML clindamycin 12 MG/ML Injection SCD Clinical drug 20 20 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.