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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
1299897 Moexipril hydrochloride 7.5 MG Oral Tablet SCD Clinical drug 6 10 View →
1364441 Apixaban 2.5 MG Oral Tablet [Eliquis] SBD Branded drug 6 10 View →
1433217 24 HR levomilnacipran 120 MG Extended Release Oral Capsule SCD Clinical drug 6 10 View →
1433223 24 HR levomilnacipran 120 MG Extended Release Oral Capsule [Fetzima] SBD Branded drug 6 10 View →
1433227 24 HR levomilnacipran 20 MG Extended Release Oral Capsule SCD Clinical drug 6 10 View →
1433229 24 HR levomilnacipran 20 MG Extended Release Oral Capsule [Fetzima] SBD Branded drug 6 10 View →
1433233 24 HR levomilnacipran 40 MG Extended Release Oral Capsule SCD Clinical drug 6 10 View →
1433235 24 HR levomilnacipran 40 MG Extended Release Oral Capsule [Fetzima] SBD Branded drug 6 10 View →
1433239 24 HR levomilnacipran 80 MG Extended Release Oral Capsule SCD Clinical drug 6 10 View →
1433241 24 HR levomilnacipran 80 MG Extended Release Oral Capsule [Fetzima] SBD Branded drug 6 10 View →
1433249 {2 (24 HR levomilnacipran 20 MG Extended Release Oral Capsule) / 26 (24 HR levomilnacipran... GPCK Generic pack 6 10 View →
1433250 {2 (24 HR levomilnacipran 20 MG Extended Release Oral Capsule [Fetzima]) / 26 (24 HR levom... BPCK Branded pack 6 10 View →
1741268 5 ML iron sucrose 20 MG/ML Injection [Venofer] SBD Branded drug 6 10 View →
197411 Bromocriptine 2.5 MG Oral Tablet SCD Clinical drug 6 10 View →
212542 Amlodipine 2.5 MG Oral Tablet [Norvasc] SBD Branded drug 6 10 View →
212549 Amlodipine 5 MG Oral Tablet [Norvasc] SBD Branded drug 6 10 View →
212575 Amlodipine 10 MG Oral Tablet [Norvasc] SBD Branded drug 6 10 View →
213269 Sildenafil 25 MG Oral Tablet [Viagra] SBD Branded drug 6 10 View →
213270 Sildenafil 50 MG Oral Tablet [Viagra] SBD Branded drug 6 10 View →
213271 Sildenafil 100 MG Oral Tablet [Viagra] SBD Branded drug 6 10 View →
2362013 Benzocaine 0.2 MG/MG / menthol 0.0026 MG/MG / zinc chloride 0.0015 MG/MG Oral Gel SCD Clinical drug 6 10 View →
2395777 0.5 ML dulaglutide 6 MG/ML Auto-Injector SCD Clinical drug 6 10 View →
2395779 0.5 ML dulaglutide 6 MG/ML Auto-Injector [Trulicity] SBD Branded drug 6 10 View →
2563971 3 ML insulin glargine-yfgn 100 UNT/ML Pen Injector SCD Clinical drug 6 10 View →
2636817 {2 (24 HR levomilnacipran 20 MG Extended Release Oral Capsule) / 5 (24 HR levomilnacipran... GPCK Generic pack 6 10 View →
2636818 {2 (24 HR levomilnacipran 20 MG Extended Release Oral Capsule [Fetzima]) / 5 (24 HR levomi... BPCK Branded pack 6 10 View →
2641650 0.1 ML adalimumab-adaz 100 MG/ML Prefilled Syringe [Hyrimoz] SBD Branded drug 6 10 View →
2641666 0.8 ML adalimumab-adaz 100 MG/ML Prefilled Syringe SCD Clinical drug 6 10 View →
2641667 0.8 ML adalimumab-adaz 100 MG/ML Prefilled Syringe [Hyrimoz] SBD Branded drug 6 10 View →
2641668 {3 (0.8 ML adalimumab-adaz 100 MG/ML Prefilled Syringe) } Pack GPCK Generic pack 6 10 View →
2641669 {3 (0.8 ML adalimumab-adaz 100 MG/ML Prefilled Syringe [Hyrimoz]) } Pack [Hyrimoz Pediatri... BPCK Branded pack 6 10 View →
2641672 {1 (0.4 ML adalimumab-adaz 100 MG/ML Prefilled Syringe) / 1 (0.8 ML adalimumab-adaz 100 MG... GPCK Generic pack 6 10 View →
2641673 {1 (0.4 ML adalimumab-adaz 100 MG/ML Prefilled Syringe [Hyrimoz]) / 1 (0.8 ML adalimumab-a... BPCK Branded pack 6 10 View →
2708991 Buspirone hydrochloride 10 MG Oral Capsule SCD Clinical drug 6 10 View →
2708993 Buspirone hydrochloride 15 MG Oral Capsule SCD Clinical drug 6 10 View →
2708994 Buspirone hydrochloride 7.5 MG Oral Capsule SCD Clinical drug 6 10 View →
283707 Zinc pyrithione 0.02 MG/MG Medicated Bar Soap SCD Clinical drug 6 10 View →
310285 Felbamate 120 MG/ML Oral Suspension SCD Clinical drug 6 10 View →
311918 Naratriptan 1 MG Oral Tablet SCD Clinical drug 6 10 View →
314135 Naratriptan 2.5 MG Oral Tablet SCD Clinical drug 6 10 View →
562806 Pimecrolimus 10 MG/ML Topical Cream SCD Clinical drug 6 10 View →
602393 Abacavir 600 MG / lamivudine 300 MG Oral Tablet SCD Clinical drug 6 10 View →
755497 Albuterol 0.4 MG/ML Oral Solution SCD Clinical drug 6 10 View →
854801 Diclofenac sodium 1 MG/ML Ophthalmic Solution SCD Clinical drug 6 10 View →
1039149 Dimethicone 32 MG/ML Medicated Pad SCD Clinical drug 6 9 View →
1047437 1 ML baclofen 0.05 MG/ML Prefilled Syringe SCD Clinical drug 6 9 View →
1049374 Benzalkonium chloride 1.15 MG/ML Medicated Pad SCD Clinical drug 6 9 View →
1085756 Triamcinolone acetonide 40 MG/ML Injectable Suspension [Kenalog] SBD Branded drug 6 9 View →
1095224 {21 (ethinyl estradiol 0.035 MG / norethindrone 0.4 MG Chewable Tablet) / 7 (ferrous fumar... GPCK Generic pack 6 9 View →
1098666 Nefazodone hydrochloride 150 MG Oral Tablet SCD Clinical drug 6 9 View →
1100742 Calcium chloride 0.00232 MEQ/ML / icodextrin 75 MG/ML / magnesium chloride 0.000533 MEQ/ML... SCD Clinical drug 6 9 View →
1100746 Calcium chloride 0.00232 MEQ/ML / icodextrin 75 MG/ML / magnesium chloride 0.000533 MEQ/ML... SBD Branded drug 6 9 View →
1117522 Colistin 75 MG/ML Injectable Solution SCD Clinical drug 6 9 View →
1314136 Lidocaine 50 MG/ML / phenylephrine hydrochloride 2.5 MG/ML Rectal Cream SCD Clinical drug 6 9 View →
1724446 Acetaminophen 325 MG / butalbital 25 MG Oral Tablet SCD Clinical drug 6 9 View →
1736045 Levetiracetam 250 MG Tablet for Oral Suspension SCD Clinical drug 6 9 View →
1736048 Levetiracetam 500 MG Tablet for Oral Suspension SCD Clinical drug 6 9 View →
1860132 5 ML potassium chloride 2 MEQ/ML Injection SCD Clinical drug 6 9 View →
197362 Ammonium lactate 120 MG/ML Topical Lotion SCD Clinical drug 6 9 View →
197595 Dicloxacillin 250 MG Oral Capsule SCD Clinical drug 6 9 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.