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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
1235049 Hydrocortisone acetate 10 MG/ML / pramoxine hydrochloride 10 MG/ML Rectal Cream SCD Clinical drug 5 5 View →
1236628 Darunavir 100 MG/ML Oral Suspension SCD Clinical drug 5 5 View →
1236632 Darunavir 100 MG/ML Oral Suspension [Prezista] SBD Branded drug 5 5 View →
1243229 Tenofovir disoproxil fumarate 250 MG Oral Tablet [Viread] SBD Branded drug 5 5 View →
1243326 Tenofovir disoproxil fumarate 150 MG Oral Tablet [Viread] SBD Branded drug 5 5 View →
1243330 Tenofovir disoproxil fumarate 200 MG Oral Tablet [Viread] SBD Branded drug 5 5 View →
1243343 Tenofovir disoproxil fumarate 0.04 MG/MG Oral Powder SCD Clinical drug 5 5 View →
1243346 Tenofovir disoproxil fumarate 0.04 MG/MG Oral Powder [Viread] SBD Branded drug 5 5 View →
1245376 Docusate calcium 240 MG Oral Capsule SCD Clinical drug 5 5 View →
1294619 Bismuth subcitrate 140 MG / metronidazole 125 MG / tetracycline hydrochloride 125 MG Oral... SCD Clinical drug 5 5 View →
1298228 Dextromethorphan hydrobromide 0.667 MG/ML / guaifenesin 6.67 MG/ML Oral Solution SCD Clinical drug 5 5 View →
1300288 Histamine dihydrochloride 1 MG/ML / menthol 30 MG/ML Topical Cream SCD Clinical drug 5 5 View →
1300293 Histamine dihydrochloride 1 MG/ML / menthol 30 MG/ML Topical Cream [Alo] SBD Branded drug 5 5 View →
1305268 NDA201739 0.15 ML epinephrine 1 MG/ML Auto-Injector [Auvi-Q] SBD Branded drug 5 5 View →
1305269 NDA201739 0.3 ML epinephrine 1 MG/ML Auto-Injector [Auvi-Q] SBD Branded drug 5 5 View →
1307303 Enzalutamide 40 MG Oral Capsule SCD Clinical drug 5 5 View →
1307309 Enzalutamide 40 MG Oral Capsule [Xtandi] SBD Branded drug 5 5 View →
1307635 Bosutinib 500 MG Oral Tablet [Bosulif] SBD Branded drug 5 5 View →
1356979 84 HR estradiol 0.00156 MG/HR Transdermal System [Minivelle] SBD Branded drug 5 5 View →
1356997 84 HR estradiol 0.00208 MG/HR Transdermal System [Minivelle] SBD Branded drug 5 5 View →
1357007 84 HR estradiol 0.00313 MG/HR Transdermal System [Minivelle] SBD Branded drug 5 5 View →
1357009 84 HR estradiol 0.00417 MG/HR Transdermal System [Minivelle] SBD Branded drug 5 5 View →
1358780 {21 (ethinyl estradiol 0.02 MG / norethindrone acetate 1 MG Oral Tablet) } Pack [Junel 1/2... BPCK Branded pack 5 5 View →
1359271 Darunavir 800 MG Oral Tablet [Prezista] SBD Branded drug 5 5 View →
1359363 Bacitracin 0.5 UNT/MG / neomycin 0.0035 MG/MG / polymyxin B 10 UNT/MG Topical Ointment SCD Clinical drug 5 5 View →
1362039 Undecylenic acid 0.25 MG/MG Topical Gel SCD Clinical drug 5 5 View →
1372464 Capsaicin 0.25 MG/ML / menthol 100 MG/ML / methyl salicylate 250 MG/ML Topical Lotion SCD Clinical drug 5 5 View →
1423494 Salicylic acid 20 MG/ML Medicated Liquid Soap [Phisoderm Clear Confidence Daily Gel Face W... SBD Branded drug 5 5 View →
1432971 168 HR buprenorphine 0.015 MG/HR Transdermal System [BuTrans] SBD Branded drug 5 5 View →
1433873 Dolutegravir 50 MG Oral Tablet SCD Clinical drug 5 5 View →
1433879 Dolutegravir 50 MG Oral Tablet [Tivicay] SBD Branded drug 5 5 View →
1440936 Hydrocortisone 25 MG/ML Topical Cream [Proctozone HC] SBD Branded drug 5 5 View →
1494174 Sulfacetamide sodium 98 MG/ML / sulfur 48 MG/ML Topical Lotion SCD Clinical drug 5 5 View →
150750 Atenolol 25 MG Oral Tablet [Tenormin] SBD Branded drug 5 5 View →
152414 Atenolol 50 MG Oral Tablet [Tenormin] SBD Branded drug 5 5 View →
1536833 Aspirin 500 MG / citric acid 1000 MG / sodium bicarbonate 1985 MG Effervescent Oral Tablet SCD Clinical drug 5 5 View →
1542999 168 HR buprenorphine 0.0075 MG/HR Transdermal System [BuTrans] SBD Branded drug 5 5 View →
1545290 Lidocaine hydrochloride 50 MG/ML Topical Spray SCD Clinical drug 5 5 View →
1551622 84 HR estradiol 0.00104 MG/HR Transdermal System [Minivelle] SBD Branded drug 5 5 View →
1551881 Lanthanum carbonate 1000 MG Oral Powder SCD Clinical drug 5 5 View →
1551884 Lanthanum carbonate 1000 MG Oral Powder [Fosrenol] SBD Branded drug 5 5 View →
1551885 Lanthanum carbonate 750 MG Oral Powder SCD Clinical drug 5 5 View →
1551886 Lanthanum carbonate 750 MG Oral Powder [Fosrenol] SBD Branded drug 5 5 View →
1591943 Ledipasvir 90 MG / sofosbuvir 400 MG Oral Tablet SCD Clinical drug 5 5 View →
1593450 Acetaminophen 32.5 MG/ML / dextromethorphan hydrobromide 1 MG/ML / guaifenesin 20 MG/ML /... SCD Clinical drug 5 5 View →
1597596 Pasireotide 20 MG Injection SCD Clinical drug 5 5 View →
1597599 Pasireotide 20 MG Injection [Signifor] SBD Branded drug 5 5 View →
1597601 Pasireotide 40 MG Injection SCD Clinical drug 5 5 View →
1597603 Pasireotide 40 MG Injection [Signifor] SBD Branded drug 5 5 View →
1597820 Pasireotide 60 MG Injection SCD Clinical drug 5 5 View →
1597822 Pasireotide 60 MG Injection [Signifor] SBD Branded drug 5 5 View →
1648203 {1 (acetaminophen 325 MG / dextromethorphan hydrobromide 10 MG / doxylamine succinate 6.25... GPCK Generic pack 5 5 View →
1655928 Ivacaftor 125 MG / lumacaftor 200 MG Oral Tablet SCD Clinical drug 5 5 View →
1655934 Ivacaftor 125 MG / lumacaftor 200 MG Oral Tablet [ORKAMBI] SBD Branded drug 5 5 View →
1656313 Cefotaxime 1000 MG Injection SCD Clinical drug 5 5 View →
1656318 Cefotaxime 2000 MG Injection SCD Clinical drug 5 5 View →
1657617 Levonorgestrel 1.5 MG Oral Tablet [Morning After] SBD Branded drug 5 5 View →
1662286 300 ML linezolid 2 MG/ML Injection [Zyvox] SBD Branded drug 5 5 View →
1665517 20 ML levofloxacin 25 MG/ML Injection SCD Clinical drug 5 5 View →
1718913 5 ML atracurium besylate 10 MG/ML Injection 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.