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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
861568 Esomeprazole 10 MG Granules for Oral Suspension SCD Clinical drug 10 12 View →
1012068 5 ML lidocaine hydrochloride 20 MG/ML Prefilled Syringe SCD Clinical drug 10 11 View →
1193331 Ruxolitinib 10 MG Oral Tablet SCD Clinical drug 10 11 View →
1193337 Ruxolitinib 10 MG Oral Tablet [Jakafi] SBD Branded drug 10 11 View →
1193339 Ruxolitinib 5 MG Oral Tablet SCD Clinical drug 10 11 View →
1193341 Ruxolitinib 5 MG Oral Tablet [Jakafi] SBD Branded drug 10 11 View →
1193343 Ruxolitinib 15 MG Oral Tablet SCD Clinical drug 10 11 View →
1193345 Ruxolitinib 15 MG Oral Tablet [Jakafi] SBD Branded drug 10 11 View →
1193347 Ruxolitinib 20 MG Oral Tablet SCD Clinical drug 10 11 View →
1193349 Ruxolitinib 20 MG Oral Tablet [Jakafi] SBD Branded drug 10 11 View →
1193351 Ruxolitinib 25 MG Oral Tablet SCD Clinical drug 10 11 View →
1193353 Ruxolitinib 25 MG Oral Tablet [Jakafi] SBD Branded drug 10 11 View →
1304111 Guaifenesin 400 MG / phenylephrine hydrochloride 10 MG Oral Tablet SCD Clinical drug 10 11 View →
1606868 Ivacaftor 75 MG Oral Granules SCD Clinical drug 10 11 View →
1719646 1 ML haloperidol 5 MG/ML Injection SCD Clinical drug 10 11 View →
1720765 17.5 ML levoleucovorin 10 MG/ML Injection SCD Clinical drug 10 11 View →
1726333 15 ML irinotecan hydrochloride 20 MG/ML Injection SCD Clinical drug 10 11 View →
1734377 250 ML foscarnet sodium 24 MG/ML Injection SCD Clinical drug 10 11 View →
198032 Nifedipine 10 MG Oral Capsule SCD Clinical drug 10 11 View →
2370903 Benzalkonium chloride 1.3 MG/ML / benzocaine 200 MG/ML / menthol 2.6 MG/ML / zinc chloride... SCD Clinical drug 10 11 View →
245001 Aluminum hydroxide 50.8 MG/ML / magnesium carbonate 47.5 MG/ML Oral Suspension SCD Clinical drug 10 11 View →
2743012 24 HR ruxolitinib 11 MG Extended Release Oral Tablet SCD Clinical drug 10 11 View →
2743016 24 HR ruxolitinib 11 MG Extended Release Oral Tablet [Jakafi] SBD Branded drug 10 11 View →
2743019 24 HR ruxolitinib 22 MG Extended Release Oral Tablet SCD Clinical drug 10 11 View →
2743022 24 HR ruxolitinib 22 MG Extended Release Oral Tablet [Jakafi] SBD Branded drug 10 11 View →
2743025 24 HR ruxolitinib 33 MG Extended Release Oral Tablet SCD Clinical drug 10 11 View →
2743028 24 HR ruxolitinib 33 MG Extended Release Oral Tablet [Jakafi] SBD Branded drug 10 11 View →
2743032 24 HR ruxolitinib 44 MG Extended Release Oral Tablet SCD Clinical drug 10 11 View →
2743035 24 HR ruxolitinib 44 MG Extended Release Oral Tablet [Jakafi] SBD Branded drug 10 11 View →
2743041 24 HR ruxolitinib 55 MG Extended Release Oral Tablet SCD Clinical drug 10 11 View →
2743044 24 HR ruxolitinib 55 MG Extended Release Oral Tablet [Jakafi] SBD Branded drug 10 11 View →
310386 Fluoxetine 4 MG/ML Oral Solution SCD Clinical drug 10 11 View →
485496 Aripiprazole 1 MG/ML Oral Solution SCD Clinical drug 10 11 View →
855200 0.5 ML ganirelix acetate 0.5 MG/ML Prefilled Syringe SCD Clinical drug 10 11 View →
1010234 Sulfacetamide sodium 80 MG/ML / sulfur 40 MG/ML Medicated Liquid Soap SCD Clinical drug 10 10 View →
1190795 1 ML atropine sulfate 1 MG/ML Injection SCD Clinical drug 10 10 View →
1299203 Isotretinoin 10 MG Oral Capsule [Absorica] SBD Branded drug 10 10 View →
1300006 Isotretinoin 20 MG Oral Capsule [Absorica] SBD Branded drug 10 10 View →
1300014 Isotretinoin 30 MG Oral Capsule [Absorica] SBD Branded drug 10 10 View →
1300016 Isotretinoin 40 MG Oral Capsule [Absorica] SBD Branded drug 10 10 View →
1307624 Bosutinib 100 MG Oral Tablet SCD Clinical drug 10 10 View →
1357547 Tofacitinib 5 MG Oral Tablet [Xeljanz] SBD Branded drug 10 10 View →
1363752 Chlorpheniramine maleate 0.4 MG/ML / dextromethorphan hydrobromide 2 MG/ML / phenylephrine... SCD Clinical drug 10 10 View →
1367436 21 DAY ethinyl estradiol 0.000625 MG/HR / etonogestrel 0.005 MG/HR Vaginal System SCD Clinical drug 10 10 View →
1435115 28 ACTUAT teriparatide 0.02 MG/ACTUAT Pen Injector SCD Clinical drug 10 10 View →
1494169 Sulfacetamide sodium 98 MG/ML / sulfur 48 MG/ML Medicated Liquid Soap SCD Clinical drug 10 10 View →
1547563 Isotretinoin 25 MG Oral Capsule [Absorica] SBD Branded drug 10 10 View →
1547567 Isotretinoin 35 MG Oral Capsule [Absorica] SBD Branded drug 10 10 View →
1597126 2500 MG testosterone 0.0162 MG/MG Topical Gel SCD Clinical drug 10 10 View →
1664986 Aztreonam 2000 MG Injection SCD Clinical drug 10 10 View →
1741049 24 HR tofacitinib 11 MG Extended Release Oral Tablet [Xeljanz] SBD Branded drug 10 10 View →
1797844 Ipratropium bromide 0.042 MG/ACTUAT Metered Dose Nasal Spray SCD Clinical drug 10 10 View →
1863975 500 ML glucose 50 MG/ML / potassium chloride 0.02 MEQ/ML / sodium chloride 2.25 MG/ML Inje... SCD Clinical drug 10 10 View →
1918194 60 ACTUAT fluticasone propionate 0.113 MG/ACTUAT / salmeterol 0.014 MG/ACTUAT Dry Powder I... SCD Clinical drug 10 10 View →
1918203 60 ACTUAT fluticasone propionate 0.232 MG/ACTUAT / salmeterol 0.014 MG/ACTUAT Dry Powder I... SCD Clinical drug 10 10 View →
1918209 60 ACTUAT fluticasone propionate 0.055 MG/ACTUAT / salmeterol 0.014 MG/ACTUAT Dry Powder I... SCD Clinical drug 10 10 View →
197873 Levorphanol tartrate 2 MG Oral Tablet SCD Clinical drug 10 10 View →
2048568 Tofacitinib 10 MG Oral Tablet [Xeljanz] SBD Branded drug 10 10 View →
208543 Thyroid (USP) 90 MG Oral Tablet [Armour Thyroid] SBD Branded drug 10 10 View →
2262711 Micronized isotretinoin 16 MG Oral Capsule SCD Clinical drug 10 10 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.