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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
2727216 350 ML vancomycin 5 MG/ML Injection [Tyzavan] SBD Branded drug 7 10 View →
2727217 150 ML vancomycin 5 MG/ML Injection [Tyzavan] SBD Branded drug 7 10 View →
2727218 300 ML vancomycin 5 MG/ML Injection [Tyzavan] SBD Branded drug 7 10 View →
2727219 400 ML vancomycin 5 MG/ML Injection [Tyzavan] SBD Branded drug 7 10 View →
2727220 100 ML vancomycin 5 MG/ML Injection [Tyzavan] SBD Branded drug 7 10 View →
312880 Salicylic acid 0.17 MG/MG Topical Gel SCD Clinical drug 7 10 View →
313496 Trimipramine 100 MG Oral Capsule SCD Clinical drug 7 10 View →
313498 Trimipramine 25 MG Oral Capsule SCD Clinical drug 7 10 View →
313499 Trimipramine 50 MG Oral Capsule SCD Clinical drug 7 10 View →
421299 Glycerin 1200 MG Rectal Suppository SCD Clinical drug 7 10 View →
616469 Pectin 1.7 MG Oral Lozenge SCD Clinical drug 7 10 View →
847230 3 ML insulin glargine 100 UNT/ML Pen Injector SCD Clinical drug 7 10 View →
857216 Sevelamer hydrochloride 400 MG Oral Tablet SCD Clinical drug 7 10 View →
1012235 Hydrocortisone acetate 5 MG/ML / lidocaine hydrochloride 30 MG/ML Rectal Cream SCD Clinical drug 7 9 View →
1045432 Lidocaine hydrochloride 40 MG/ML Topical Spray SCD Clinical drug 7 9 View →
1045482 Menthol 15 MG/ML Topical Cream SCD Clinical drug 7 9 View →
1112864 Acetaminophen 325 MG / chlorpheniramine maleate 2 MG Oral Tablet SCD Clinical drug 7 9 View →
1244193 Salicylic acid 15 MG/ML Topical Solution SCD Clinical drug 7 9 View →
1297660 Esomeprazole 2.5 MG Granules for Oral Suspension [Nexium] SBD Branded drug 7 9 View →
1297763 Esomeprazole 5 MG Granules for Oral Suspension [Nexium] SBD Branded drug 7 9 View →
1298435 Sodium chloride 0.000855 MEQ/MG Ophthalmic Ointment SCD Clinical drug 7 9 View →
1357888 Methylprednisolone 2000 MG Injection [Solu-Medrol] SBD Branded drug 7 9 View →
1368453 Glycerol phenylbutyrate 1100 MG/ML Oral Solution SCD Clinical drug 7 9 View →
1654186 4 ML adenosine 3 MG/ML Injection SCD Clinical drug 7 9 View →
1737852 10 ML methylene blue 10 MG/ML Injection SCD Clinical drug 7 9 View →
1743722 Methylprednisolone 500 MG Injection [Solu-Medrol] SBD Branded drug 7 9 View →
1743726 Methylprednisolone 1000 MG Injection SCD Clinical drug 7 9 View →
1743729 Methylprednisolone 1000 MG Injection [Solu-Medrol] SBD Branded drug 7 9 View →
1743879 500 ML dopamine hydrochloride 1.6 MG/ML Injection SCD Clinical drug 7 9 View →
1799706 250 ML soybean oil 200 MG/ML Injection [Intralipid] SBD Branded drug 7 9 View →
1799725 500 ML soybean oil 200 MG/ML Injection [Intralipid] SBD Branded drug 7 9 View →
1860136 10 ML potassium chloride 2 MEQ/ML Injection SCD Clinical drug 7 9 View →
2001506 Lamotrigine 150 MG Oral Tablet [Subvenite] SBD Branded drug 7 9 View →
2001508 Lamotrigine 25 MG Oral Tablet [Subvenite] SBD Branded drug 7 9 View →
2003796 Lamotrigine 100 MG Oral Tablet [Subvenite] SBD Branded drug 7 9 View →
2003797 {14 (lamotrigine 100 MG Oral Tablet [Subvenite]) / 84 (lamotrigine 25 MG Oral Tablet [Subv... BPCK Branded pack 7 9 View →
2003798 {7 (lamotrigine 100 MG Oral Tablet [Subvenite]) / 42 (lamotrigine 25 MG Oral Tablet [Subve... BPCK Branded pack 7 9 View →
2003799 {35 (lamotrigine 25 MG Oral Tablet [Subvenite]) } Pack [Subvenite Blue (for Patients Takin... BPCK Branded pack 7 9 View →
2003801 Lamotrigine 200 MG Oral Tablet [Subvenite] SBD Branded drug 7 9 View →
212446 Azithromycin 250 MG Oral Tablet [Zithromax] SBD Branded drug 7 9 View →
2629337 0.5 ML fentanyl 0.05 MG/ML Prefilled Syringe SCD Clinical drug 7 9 View →
314238 Tropicamide 10 MG/ML Ophthalmic Solution SCD Clinical drug 7 9 View →
606731 Esomeprazole 40 MG Delayed Release Oral Capsule [Nexium] SBD Branded drug 7 9 View →
861570 Esomeprazole 10 MG Granules for Oral Suspension [Nexium] SBD Branded drug 7 9 View →
861576 Esomeprazole 20 MG Granules for Oral Suspension [Nexium] SBD Branded drug 7 9 View →
861583 Esomeprazole 40 MG Granules for Oral Suspension [Nexium] SBD Branded drug 7 9 View →
866128 Menthol 0.0125 MG/MG Topical Gel SCD Clinical drug 7 9 View →
904932 Ibandronic acid 150 MG Oral Tablet SCD Clinical drug 7 9 View →
1049223 Acetaminophen 325 MG / oxycodone hydrochloride 5 MG Oral Tablet [Endocet] SBD Branded drug 7 8 View →
105398 Hydrocortisone 100 MG Injection [Solu-Cortef] SBD Branded drug 7 8 View →
1191310 Fluocinolone acetonide 0.1 MG/ML Topical Solution SCD Clinical drug 7 8 View →
1303110 Benzalkonium chloride 1.1 MG/ML Medicated Pad SCD Clinical drug 7 8 View →
1359455 Acetaminophen 33.3 MG/ML / dextromethorphan hydrobromide 1 MG/ML Oral Solution SCD Clinical drug 7 8 View →
1375948 Doxylamine succinate 10 MG / pyridoxine hydrochloride 10 MG Delayed Release Oral Tablet SCD Clinical drug 7 8 View →
1659283 Ceftazidime 1000 MG Injection SCD Clinical drug 7 8 View →
1659287 Ceftazidime 2000 MG Injection SCD Clinical drug 7 8 View →
1720773 25 ML levoleucovorin 10 MG/ML Injection SCD Clinical drug 7 8 View →
1721690 1 ML epoetin alfa 10000 UNT/ML Injection [Procrit] SBD Branded drug 7 8 View →
1922894 Preservative-Free timolol 5 MG/ML Ophthalmic Solution SCD Clinical drug 7 8 View →
197596 Dicloxacillin 500 MG Oral Capsule SCD Clinical drug 7 8 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.