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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
848135 Amlodipine 10 MG / hydrochlorothiazide 25 MG / valsartan 320 MG Oral Tablet SCD Clinical drug 30 55 View →
848140 Amlodipine 5 MG / hydrochlorothiazide 12.5 MG / valsartan 160 MG Oral Tablet SCD Clinical drug 30 55 View →
848145 Amlodipine 5 MG / hydrochlorothiazide 25 MG / valsartan 160 MG Oral Tablet SCD Clinical drug 30 55 View →
848151 Amlodipine 10 MG / hydrochlorothiazide 25 MG / valsartan 160 MG Oral Tablet SCD Clinical drug 30 55 View →
860510 24 HR carvedilol phosphate 10 MG Extended Release Oral Capsule SCD Clinical drug 30 55 View →
891874 Morphine sulfate 100 MG Extended Release Oral Tablet SCD Clinical drug 30 55 View →
1723476 Dabigatran etexilate 110 MG Oral Capsule SCD Clinical drug 30 53 View →
106303 Tretinoin 0.5 MG/ML Topical Cream SCD Clinical drug 30 52 View →
1014571 12 HR cetirizine hydrochloride 5 MG / pseudoephedrine hydrochloride 120 MG Extended Releas... SCD Clinical drug 30 51 View →
403850 Carbidopa 12.5 MG / entacapone 200 MG / levodopa 50 MG Oral Tablet SCD Clinical drug 30 48 View →
403851 Carbidopa 25 MG / entacapone 200 MG / levodopa 100 MG Oral Tablet SCD Clinical drug 30 48 View →
403852 Carbidopa 37.5 MG / entacapone 200 MG / levodopa 150 MG Oral Tablet SCD Clinical drug 30 48 View →
730988 Carbidopa 50 MG / entacapone 200 MG / levodopa 200 MG Oral Tablet SCD Clinical drug 30 48 View →
810083 Carbidopa 31.25 MG / entacapone 200 MG / levodopa 125 MG Oral Tablet SCD Clinical drug 30 48 View →
810090 Carbidopa 18.75 MG / entacapone 200 MG / levodopa 75 MG Oral Tablet SCD Clinical drug 30 48 View →
197739 Glycopyrrolate 2 MG Oral Tablet SCD Clinical drug 30 45 View →
198038 Nitroglycerin 0.3 MG Sublingual Tablet SCD Clinical drug 30 42 View →
198040 Nitroglycerin 0.6 MG Sublingual Tablet SCD Clinical drug 30 42 View →
1359269 Darunavir 800 MG Oral Tablet SCD Clinical drug 30 40 View →
486131 Benzoyl peroxide 0.1 MG/MG Topical Gel SCD Clinical drug 30 37 View →
702311 Sennosides, USP 1.76 MG/ML Oral Solution SCD Clinical drug 30 36 View →
1086991 Acetaminophen 325 MG / chlorpheniramine maleate 2 MG / dextromethorphan hydrobromide 10 MG... SCD Clinical drug 30 33 View →
1729007 Selexipag 1 MG Oral Tablet SCD Clinical drug 30 33 View →
1729027 Selexipag 1.2 MG Oral Tablet SCD Clinical drug 30 33 View →
1729031 Selexipag 1.4 MG Oral Tablet SCD Clinical drug 30 33 View →
1729045 Selexipag 1.6 MG Oral Tablet SCD Clinical drug 30 33 View →
1729051 Selexipag 0.2 MG Oral Tablet SCD Clinical drug 30 33 View →
1729055 Selexipag 0.4 MG Oral Tablet SCD Clinical drug 30 33 View →
1729059 Selexipag 0.6 MG Oral Tablet SCD Clinical drug 30 33 View →
1729063 Selexipag 0.8 MG Oral Tablet SCD Clinical drug 30 33 View →
1729075 {140 (selexipag 0.2 MG Oral Tablet) / 60 (selexipag 0.8 MG Oral Tablet) } Pack GPCK Generic pack 30 33 View →
1659598 Ampicillin 2000 MG / sulbactam 1000 MG Injection SCD Clinical drug 30 32 View →
309696 Dexamethasone phosphate 10 MG/ML Injectable Solution SCD Clinical drug 30 32 View →
1052943 Tetrahydrozoline hydrochloride 0.5 MG/ML Ophthalmic Solution SCD Clinical drug 30 31 View →
1807518 Vancomycin 750 MG Injection SCD Clinical drug 30 31 View →
2049890 Vancomycin 1500 MG Injection SCD Clinical drug 30 31 View →
1542997 168 HR buprenorphine 0.0075 MG/HR Transdermal System SCD Clinical drug 30 30 View →
238019 Ethinyl estradiol 0.03 MG / levonorgestrel 0.15 MG Oral Tablet SCD Clinical drug 30 29 View →
1649401 Doxycycline monohydrate 50 MG Oral Capsule SCD Clinical drug 29 82 View →
1114198 Rivaroxaban 10 MG Oral Tablet SCD Clinical drug 29 77 View →
312840 Rizatriptan 5 MG Oral Tablet SCD Clinical drug 29 76 View →
198144 Prednisone 1 MG Oral Tablet SCD Clinical drug 29 71 View →
312837 Rizatriptan 10 MG Disintegrating Oral Tablet SCD Clinical drug 29 69 View →
833711 24 HR tramadol hydrochloride 200 MG Extended Release Oral Tablet SCD Clinical drug 29 69 View →
1091839 Roflumilast 0.5 MG Oral Tablet SCD Clinical drug 29 68 View →
349435 Voriconazole 50 MG Oral Tablet SCD Clinical drug 29 67 View →
966787 Doxepin 3 MG Oral Tablet SCD Clinical drug 29 67 View →
1795607 500 ML glucose 50 MG/ML Injection SCD Clinical drug 29 65 View →
349478 Vardenafil 5 MG Oral Tablet SCD Clinical drug 29 61 View →
402273 Vardenafil 2.5 MG Oral Tablet SCD Clinical drug 29 61 View →
312504 Potassium chloride 10 MEQ Extended Release Oral Capsule SCD Clinical drug 29 60 View →
199376 Potassium citrate 5 MEQ Extended Release Oral Tablet SCD Clinical drug 29 59 View →
800066 Calcium chloride 0.000996 MEQ/ML / glucose 1.7 MG/ML / magnesium chloride 0.0000245 MEQ/ML... SCD Clinical drug 29 59 View →
800074 Calcium chloride 0.000996 MEQ/ML / glucose 1.7 MG/ML / magnesium chloride 0.0000245 MEQ/ML... SBD Branded drug 29 59 View →
1010759 Epinephrine 0.01 MG/ML / lidocaine hydrochloride 20 MG/ML Injectable Solution SCD Clinical drug 29 58 View →
485434 Entecavir 0.5 MG Oral Tablet SCD Clinical drug 29 56 View →
860516 24 HR carvedilol phosphate 20 MG Extended Release Oral Capsule SCD Clinical drug 29 54 View →
860522 24 HR carvedilol phosphate 40 MG Extended Release Oral Capsule SCD Clinical drug 29 54 View →
860532 24 HR carvedilol phosphate 80 MG Extended Release Oral Capsule SCD Clinical drug 29 54 View →
1734090 10 ML ropivacaine hydrochloride 10 MG/ML Injection SCD Clinical drug 29 52 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.