Home › NDC Lookup › RxCUI directory

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
1486841 Raltegravir 100 MG Granules for Oral Suspension [Isentress] SBD Branded drug 5 6 View →
1535597 Ethanol 0.76 ML/ML Topical Gel SCD Clinical drug 5 6 View →
1593110 Acetaminophen 250 MG / aspirin 250 MG / diphenhydramine citrate 38 MG Oral Tablet SCD Clinical drug 5 6 View →
1593738 Vasopressin (USP) 20 UNT/ML Injectable Solution [Vasostrict] SBD Branded drug 5 6 View →
1598470 Benzoyl peroxide 0.0375 MG/MG / clindamycin phosphate 0.012 MG/MG Topical Gel SCD Clinical drug 5 6 View →
1720586 24 HR amphetamine 2.5 MG/ML Extended Release Suspension SCD Clinical drug 5 6 View →
1720592 24 HR amphetamine 2.5 MG/ML Extended Release Suspension [Dyanavel] SBD Branded drug 5 6 View →
1724668 10 ML aminophylline 25 MG/ML Injection SCD Clinical drug 5 6 View →
1737742 250 ML lidocaine hydrochloride 4 MG/ML Injection SCD Clinical drug 5 6 View →
1738586 Hydrocortisone 1000 MG Injection SCD Clinical drug 5 6 View →
1738589 Hydrocortisone 1000 MG Injection [Solu-Cortef] SBD Branded drug 5 6 View →
1738592 Hydrocortisone 250 MG Injection [Solu-Cortef] SBD Branded drug 5 6 View →
1738594 Hydrocortisone 500 MG Injection SCD Clinical drug 5 6 View →
1738596 Hydrocortisone 500 MG Injection [Solu-Cortef] SBD Branded drug 5 6 View →
1870631 100 ML gentamicin 1.2 MG/ML Injection SCD Clinical drug 5 6 View →
1870633 50 ML gentamicin 1.2 MG/ML Injection SCD Clinical drug 5 6 View →
1924313 Raltegravir 600 MG Oral Tablet SCD Clinical drug 5 6 View →
1924315 Raltegravir 600 MG Oral Tablet [Isentress] SBD Branded drug 5 6 View →
197736 50 ML gentamicin 2 MG/ML Injection SCD Clinical drug 5 6 View →
198033 Nifedipine 20 MG Oral Capsule SCD Clinical drug 5 6 View →
1991328 NDA201739 0.1 ML epinephrine 1 MG/ML Auto-Injector SCD Clinical drug 5 6 View →
199159 Tretinoin 10 MG Oral Capsule SCD Clinical drug 5 6 View →
199864 Benzocaine 200 MG/ML / menthol 5 MG/ML Topical Spray SCD Clinical drug 5 6 View →
2054168 50 ML albumin human-kjda 250 MG/ML Injection SCD Clinical drug 5 6 View →
2054170 50 ML albumin human-kjda 250 MG/ML Injection [Albuminex] SBD Branded drug 5 6 View →
2166922 Witch hazel 500 MG/ML Topical Foam SCD Clinical drug 5 6 View →
2197844 Lidocaine 40 MG/ML Topical Solution SCD Clinical drug 5 6 View →
2360899 Polyethylene glycol 400 10 MG/ML Ophthalmic Solution SCD Clinical drug 5 6 View →
242816 100 ML gentamicin 1 MG/ML Injection SCD Clinical drug 5 6 View →
249465 Phenylephrine 0.0025 MG/MG / witch hazel 0.5 MG/MG Rectal Gel SCD Clinical drug 5 6 View →
251322 Ethosuximide 50 MG/ML Oral Solution SCD Clinical drug 5 6 View →
2584344 Hydrogen peroxide 15 MG/ML / menthol 1 MG/ML Mucous Membrane Topical Solution SCD Clinical drug 5 6 View →
2585460 24 HR amphetamine 10 MG Extended Release Oral Tablet SCD Clinical drug 5 6 View →
2585461 24 HR amphetamine 10 MG Extended Release Oral Tablet [Dyanavel] SBD Branded drug 5 6 View →
2585462 24 HR amphetamine 15 MG Extended Release Oral Tablet SCD Clinical drug 5 6 View →
2585465 24 HR amphetamine 15 MG Extended Release Oral Tablet [Dyanavel] SBD Branded drug 5 6 View →
2585468 24 HR amphetamine 20 MG Extended Release Oral Tablet SCD Clinical drug 5 6 View →
2585471 24 HR amphetamine 20 MG Extended Release Oral Tablet [Dyanavel] SBD Branded drug 5 6 View →
2585473 24 HR amphetamine 5 MG Extended Release Oral Tablet SCD Clinical drug 5 6 View →
2585476 24 HR amphetamine 5 MG Extended Release Oral Tablet [Dyanavel] SBD Branded drug 5 6 View →
2590656 Lidocaine 50 MG/ML / phenylephrine hydrochloride 2.5 MG/ML Rectal Spray SCD Clinical drug 5 6 View →
2688819 0.2 ML adalimumab-ryvk 100 MG/ML Prefilled Syringe SCD Clinical drug 5 6 View →
2688823 0.2 ML adalimumab-ryvk 100 MG/ML Prefilled Syringe [Simlandi] SBD Branded drug 5 6 View →
2688827 0.4 ML adalimumab-ryvk 100 MG/ML Prefilled Syringe [Simlandi] SBD Branded drug 5 6 View →
2688828 0.8 ML adalimumab-ryvk 100 MG/ML Prefilled Syringe SCD Clinical drug 5 6 View →
2688829 0.8 ML adalimumab-ryvk 100 MG/ML Prefilled Syringe [Simlandi] SBD Branded drug 5 6 View →
2706645 0.8 ML adalimumab-ryvk 100 MG/ML Auto-Injector [Simlandi] SBD Branded drug 5 6 View →
310473 100 ML gentamicin 0.8 MG/ML Injection SCD Clinical drug 5 6 View →
310477 50 ML gentamicin 1.6 MG/ML Injection SCD Clinical drug 5 6 View →
311450 50 ML mannitol 250 MG/ML Injection SCD Clinical drug 5 6 View →
312544 Potassium nitrate 0.05 MG/MG Toothpaste SCD Clinical drug 5 6 View →
313422 Tolnaftate 0.01 MG/MG Topical Powder SCD Clinical drug 5 6 View →
577232 Menthol 0.0015 MG/MG / zinc oxide 0.01 MG/MG Topical Powder SCD Clinical drug 5 6 View →
835831 Testosterone cypionate 100 MG/ML Injectable Solution [Depo-testosterone] SBD Branded drug 5 6 View →
847628 Calcium chloride 0.2 MG/ML / potassium chloride 0.3 MG/ML / sodium chloride 6 MG/ML / sodi... SCD Clinical drug 5 6 View →
866429 24 HR metoprolol succinate 25 MG Extended Release Oral Tablet [Toprol] SBD Branded drug 5 6 View →
896992 Menthol 2.5 MG Oral Lozenge [Halls] SBD Branded drug 5 6 View →
966557 Aluminum chloride 250 MG/ML Mucous Membrane Topical Solution SCD Clinical drug 5 6 View →
992530 Terbinafine hydrochloride 10 MG/ML Topical Cream [Lamisil] SBD Branded drug 5 6 View →
992801 Chloroprocaine hydrochloride 10 MG/ML Injectable Solution SCD Clinical drug 5 6 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.