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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
108513 Tacrolimus 1 MG Oral Capsule [Prograf] SBD Branded drug 6 6 View →
108514 Tacrolimus 5 MG Oral Capsule [Prograf] SBD Branded drug 6 6 View →
108515 1 ML tacrolimus 5 MG/ML Injection [Prograf] SBD Branded drug 6 6 View →
1085745 Triamcinolone acetonide 1 MG/ML Topical Lotion SCD Clinical drug 6 6 View →
1086713 Menthol 70 MG/ML Topical Spray SCD Clinical drug 6 6 View →
1091139 30/70 Release 24 HR methylphenidate hydrochloride 10 MG Extended Release Oral Capsule [Met... SBD Branded drug 6 6 View →
1091163 30/70 Release 24 HR methylphenidate hydrochloride 20 MG Extended Release Oral Capsule [Met... SBD Branded drug 6 6 View →
1091178 30/70 Release 24 HR methylphenidate hydrochloride 30 MG Extended Release Oral Capsule [Met... SBD Branded drug 6 6 View →
1091193 30/70 Release 24 HR methylphenidate hydrochloride 40 MG Extended Release Oral Capsule [Met... SBD Branded drug 6 6 View →
1091204 30/70 Release 24 HR methylphenidate hydrochloride 50 MG Extended Release Oral Capsule [Met... SBD Branded drug 6 6 View →
1091220 30/70 Release 24 HR methylphenidate hydrochloride 60 MG Extended Release Oral Capsule [Met... SBD Branded drug 6 6 View →
1091379 Methylphenidate hydrochloride 10 MG Oral Tablet [Ritalin] SBD Branded drug 6 6 View →
1091395 Methylphenidate hydrochloride 20 MG Oral Tablet [Ritalin] SBD Branded drug 6 6 View →
1091500 Methylphenidate hydrochloride 5 MG Oral Tablet [Ritalin] SBD Branded drug 6 6 View →
1099290 Desipramine hydrochloride 10 MG Oral Tablet [Norpramin] SBD Branded drug 6 6 View →
1099294 Desipramine hydrochloride 100 MG Oral Tablet [Norpramin] SBD Branded drug 6 6 View →
1099298 Desipramine hydrochloride 150 MG Oral Tablet [Norpramin] SBD Branded drug 6 6 View →
1099302 Desipramine hydrochloride 25 MG Oral Tablet [Norpramin] SBD Branded drug 6 6 View →
1099306 Desipramine hydrochloride 50 MG Oral Tablet [Norpramin] SBD Branded drug 6 6 View →
1099318 Desipramine hydrochloride 75 MG Oral Tablet [Norpramin] SBD Branded drug 6 6 View →
1114466 Nitroglycerin 0.004 MG/MG Rectal Ointment SCD Clinical drug 6 6 View →
1115447 1 ML leuprolide acetate 11.25 MG/ML Prefilled Syringe SCD Clinical drug 6 6 View →
1115449 1 ML leuprolide acetate 11.25 MG/ML Prefilled Syringe [Lupron] SBD Branded drug 6 6 View →
1115454 1 ML leuprolide acetate 15 MG/ML Prefilled Syringe SCD Clinical drug 6 6 View →
1115456 1 ML leuprolide acetate 15 MG/ML Prefilled Syringe [Lupron] SBD Branded drug 6 6 View →
1148478 24 HR tramadol hydrochloride 100 MG Extended Release Oral Capsule SCD Clinical drug 6 6 View →
1148485 24 HR tramadol hydrochloride 200 MG Extended Release Oral Capsule SCD Clinical drug 6 6 View →
1148489 24 HR tramadol hydrochloride 300 MG Extended Release Oral Capsule SCD Clinical drug 6 6 View →
1250721 Etravirine 25 MG Oral Tablet SCD Clinical drug 6 6 View →
1292313 Diphenhydramine hydrochloride 10 MG/ML / zinc acetate 1 MG/ML Topical Cream SCD Clinical drug 6 6 View →
1307630 Bosutinib 100 MG Oral Tablet [Bosulif] SBD Branded drug 6 6 View →
1308571 24 HR rivastigmine 0.554 MG/HR Transdermal System [Exelon] SBD Branded drug 6 6 View →
1359025 {21 (ethinyl estradiol 0.03 MG / norethindrone acetate 1.5 MG Oral Tablet) / 7 (ferrous fu... BPCK Branded pack 6 6 View →
1486566 Sodium fluoride 0.011 MG/MG Oral Gel SCD Clinical drug 6 6 View →
151227 Topiramate 50 MG Oral Tablet [Topamax] SBD Branded drug 6 6 View →
151228 Topiramate 100 MG Oral Tablet [Topamax] SBD Branded drug 6 6 View →
151229 Topiramate 200 MG Oral Tablet [Topamax] SBD Branded drug 6 6 View →
152855 Topiramate 25 MG Oral Tablet [Topamax] SBD Branded drug 6 6 View →
1539243 Dalbavancin 500 MG Injection SCD Clinical drug 6 6 View →
1540241 Benzoyl peroxide 0.05 MG/MG / clindamycin phosphate 0.012 MG/MG Topical Gel SCD Clinical drug 6 6 View →
1545776 Lomustine 10 MG Oral Capsule [Gleostine] SBD Branded drug 6 6 View →
1545778 Lomustine 100 MG Oral Capsule [Gleostine] SBD Branded drug 6 6 View →
1545780 Lomustine 40 MG Oral Capsule [Gleostine] SBD Branded drug 6 6 View →
1595736 Abuse-Deterrent 24 HR hydrocodone bitartrate 20 MG Extended Release Oral Tablet [Hysingla] SBD Branded drug 6 6 View →
1595742 Abuse-Deterrent 24 HR hydrocodone bitartrate 30 MG Extended Release Oral Tablet [Hysingla] SBD Branded drug 6 6 View →
1595748 Abuse-Deterrent 24 HR hydrocodone bitartrate 40 MG Extended Release Oral Tablet [Hysingla] SBD Branded drug 6 6 View →
1595754 Abuse-Deterrent 24 HR hydrocodone bitartrate 60 MG Extended Release Oral Tablet [Hysingla] SBD Branded drug 6 6 View →
1595760 Abuse-Deterrent 24 HR hydrocodone bitartrate 80 MG Extended Release Oral Tablet [Hysingla] SBD Branded drug 6 6 View →
1595766 Abuse-Deterrent 24 HR hydrocodone bitartrate 100 MG Extended Release Oral Tablet [Hysingla... SBD Branded drug 6 6 View →
1607790 Deferasirox 180 MG Oral Tablet [Jadenu] SBD Branded drug 6 6 View →
1607794 Deferasirox 360 MG Oral Tablet [Jadenu] SBD Branded drug 6 6 View →
1607798 Deferasirox 90 MG Oral Tablet [Jadenu] SBD Branded drug 6 6 View →
1649994 0.5 ML interferon beta-1a 0.044 MG/ML Auto-Injector SCD Clinical drug 6 6 View →
1649996 0.5 ML interferon beta-1a 0.044 MG/ML Auto-Injector [Rebif] SBD Branded drug 6 6 View →
1650003 0.5 ML interferon beta-1a 0.088 MG/ML Auto-Injector SCD Clinical drug 6 6 View →
1650004 0.5 ML interferon beta-1a 0.088 MG/ML Auto-Injector [Rebif] SBD Branded drug 6 6 View →
1650011 0.2 ML interferon beta-1a 0.044 MG/ML Auto-Injector SCD Clinical drug 6 6 View →
1650012 0.2 ML interferon beta-1a 0.044 MG/ML Auto-Injector [Rebif] SBD Branded drug 6 6 View →
1650268 {6 (0.2 ML interferon beta-1a 0.044 MG/ML Auto-Injector) / 6 (0.5 ML interferon beta-1a 0.... GPCK Generic pack 6 6 View →
1650282 {6 (0.2 ML interferon beta-1a 0.044 MG/ML Auto-Injector [Rebif]) / 6 (0.5 ML interferon be... BPCK Branded pack 6 6 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.