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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
1729200 1 ML enalaprilat 1.25 MG/ML Injection SCD Clinical drug 5 5 View →
1729308 Aprepitant 125 MG Powder for Oral Suspension SCD Clinical drug 5 5 View →
1729311 Aprepitant 125 MG Powder for Oral Suspension [Emend] SBD Branded drug 5 5 View →
1737449 10 ML pamidronate disodium 3 MG/ML Injection SCD Clinical drug 5 5 View →
1737453 10 ML pamidronate disodium 9 MG/ML Injection SCD Clinical drug 5 5 View →
1790095 Doxorubicin hydrochloride 50 MG Injection SCD Clinical drug 5 5 View →
1790219 2 ML doxercalciferol 0.002 MG/ML Injection SCD Clinical drug 5 5 View →
1791371 5 ML levocarnitine 200 MG/ML Injection SCD Clinical drug 5 5 View →
1795514 50 ML glucose 500 MG/ML Injection SCD Clinical drug 5 5 View →
1795518 500 ML glucose 500 MG/ML Injection SCD Clinical drug 5 5 View →
1797895 Olopatadine hydrochloride 0.665 MG/ACTUAT Metered Dose Nasal Spray SCD Clinical drug 5 5 View →
1799212 Sofosbuvir 400 MG / velpatasvir 100 MG Oral Tablet SCD Clinical drug 5 5 View →
1804178 Ethanol 0.48 ML/ML Topical Solution SCD Clinical drug 5 5 View →
1804375 Sodium bicarbonate 515 MG / sodium chloride 1685 MG Powder for Nasal Solution SCD Clinical drug 5 5 View →
1812468 Ivacaftor 125 MG / lumacaftor 100 MG Oral Tablet SCD Clinical drug 5 5 View →
1812470 Ivacaftor 125 MG / lumacaftor 100 MG Oral Tablet [ORKAMBI] SBD Branded drug 5 5 View →
1866515 30 ML mepivacaine hydrochloride 10 MG/ML Injection [Polocaine] SBD Branded drug 5 5 View →
1866524 20 ML mepivacaine hydrochloride 20 MG/ML Injection SCD Clinical drug 5 5 View →
1866531 20 ML mepivacaine hydrochloride 20 MG/ML Injection [Polocaine] SBD Branded drug 5 5 View →
1870950 Deflazacort 6 MG Oral Tablet [Emflaza] SBD Branded drug 5 5 View →
1870952 Deflazacort 30 MG Oral Tablet [Emflaza] SBD Branded drug 5 5 View →
1870956 Deflazacort 18 MG Oral Tablet [Emflaza] SBD Branded drug 5 5 View →
1870960 Deflazacort 36 MG Oral Tablet [Emflaza] SBD Branded drug 5 5 View →
1870968 Deflazacort 22.75 MG/ML Oral Suspension [Emflaza] SBD Branded drug 5 5 View →
1943537 Benzyl alcohol 0.1 ML/ML / lidocaine hydrochloride 40 MG/ML Topical Solution SCD Clinical drug 5 5 View →
197305 Acetic acid 20 MG/ML Otic Solution SCD Clinical drug 5 5 View →
197856 Ketoprofen 75 MG Oral Capsule SCD Clinical drug 5 5 View →
198332 Trimethoprim 100 MG Oral Tablet SCD Clinical drug 5 5 View →
198859 Sodium bicarbonate 325 MG Oral Tablet SCD Clinical drug 5 5 View →
199369 Sodium phenylbutyrate 500 MG Oral Tablet SCD Clinical drug 5 5 View →
200176 Camphor 5 MG/ML / menthol 5 MG/ML Topical Lotion SCD Clinical drug 5 5 View →
2003749 Camphor 0.047 MG/MG / Eucalyptus oil 0.012 MG/MG / menthol 0.0125 MG/MG Topical Ointment SCD Clinical drug 5 5 View →
201322 Atenolol 100 MG Oral Tablet [Tenormin] SBD Branded drug 5 5 View →
2049730 Pasireotide 30 MG Injection SCD Clinical drug 5 5 View →
2049732 Pasireotide 30 MG Injection [Signifor] SBD Branded drug 5 5 View →
2049734 Pasireotide 10 MG Injection SCD Clinical drug 5 5 View →
2049736 Pasireotide 10 MG Injection [Signifor] SBD Branded drug 5 5 View →
205173 Salicylic acid 18 MG/ML Medicated Shampoo SCD Clinical drug 5 5 View →
2053509 Ivacaftor 125 MG / lumacaftor 100 MG Oral Granules SCD Clinical drug 5 5 View →
2053512 Ivacaftor 125 MG / lumacaftor 100 MG Oral Granules [ORKAMBI] SBD Branded drug 5 5 View →
2053517 Ivacaftor 188 MG / lumacaftor 150 MG Oral Granules SCD Clinical drug 5 5 View →
2053519 Ivacaftor 188 MG / lumacaftor 150 MG Oral Granules [ORKAMBI] SBD Branded drug 5 5 View →
209253 Estrogens, esterified (USP) 1.25 MG / methyltestosterone 2.5 MG Oral Tablet [Estratest] SBD Branded drug 5 5 View →
2104714 50 ML leucovorin 10 MG/ML Injection SCD Clinical drug 5 5 View →
211322 Mirtazapine 15 MG Oral Tablet [Remeron] SBD Branded drug 5 5 View →
211323 Mirtazapine 30 MG Oral Tablet [Remeron] SBD Branded drug 5 5 View →
2118540 Camphor 0.031 MG/MG / menthol 0.026 MG/MG Medicated Patch SCD Clinical drug 5 5 View →
2121950 Sodium fluoride 0.0272 MG/MG Oral Gel [Kolorz] SBD Branded drug 5 5 View →
2166193 5 ML levothyroxine sodium 0.02 MG/ML Injection SCD Clinical drug 5 5 View →
2168857 Evening Dosing 24 HR methylphenidate hydrochloride 60 MG Extended Release Oral Capsule SCD Clinical drug 5 5 View →
2168859 Evening Dosing 24 HR methylphenidate hydrochloride 60 MG Extended Release Oral Capsule [Jo... SBD Branded drug 5 5 View →
2168861 Evening Dosing 24 HR methylphenidate hydrochloride 80 MG Extended Release Oral Capsule SCD Clinical drug 5 5 View →
2168863 Evening Dosing 24 HR methylphenidate hydrochloride 80 MG Extended Release Oral Capsule [Jo... SBD Branded drug 5 5 View →
2168864 Evening Dosing 24 HR methylphenidate hydrochloride 100 MG Extended Release Oral Capsule SCD Clinical drug 5 5 View →
2168865 Evening Dosing 24 HR methylphenidate hydrochloride 100 MG Extended Release Oral Capsule [J... SBD Branded drug 5 5 View →
2168866 Evening Dosing 24 HR methylphenidate hydrochloride 20 MG Extended Release Oral Capsule SCD Clinical drug 5 5 View →
2168867 Evening Dosing 24 HR methylphenidate hydrochloride 20 MG Extended Release Oral Capsule [Jo... SBD Branded drug 5 5 View →
2168868 Evening Dosing 24 HR methylphenidate hydrochloride 40 MG Extended Release Oral Capsule SCD Clinical drug 5 5 View →
2168869 Evening Dosing 24 HR methylphenidate hydrochloride 40 MG Extended Release Oral Capsule [Jo... SBD Branded drug 5 5 View →
226597 Estradiol 0.0006 MG/MG Topical Gel SCD Clinical drug 5 5 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.