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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
2262713 Micronized isotretinoin 16 MG Oral Capsule [Absorica] SBD Branded drug 10 10 View →
2262714 Micronized isotretinoin 20 MG Oral Capsule SCD Clinical drug 10 10 View →
2262715 Micronized isotretinoin 20 MG Oral Capsule [Absorica] SBD Branded drug 10 10 View →
2262717 Micronized isotretinoin 24 MG Oral Capsule SCD Clinical drug 10 10 View →
2262719 Micronized isotretinoin 24 MG Oral Capsule [Absorica] SBD Branded drug 10 10 View →
2262721 Micronized isotretinoin 28 MG Oral Capsule SCD Clinical drug 10 10 View →
2262723 Micronized isotretinoin 28 MG Oral Capsule [Absorica] SBD Branded drug 10 10 View →
2262725 Micronized isotretinoin 32 MG Oral Capsule SCD Clinical drug 10 10 View →
2262727 Micronized isotretinoin 32 MG Oral Capsule [Absorica] SBD Branded drug 10 10 View →
2262729 Micronized isotretinoin 8 MG Oral Capsule SCD Clinical drug 10 10 View →
2262731 Micronized isotretinoin 8 MG Oral Capsule [Absorica] SBD Branded drug 10 10 View →
2273115 24 HR tofacitinib 22 MG Extended Release Oral Tablet [Xeljanz] SBD Branded drug 10 10 View →
2478437 Tofacitinib 1 MG/ML Oral Solution [Xeljanz] SBD Branded drug 10 10 View →
307696 Acetaminophen 80 MG Chewable Tablet SCD Clinical drug 10 10 View →
309680 Dexamethasone 1 MG/ML / neomycin 3.5 MG/ML / polymyxin B 10000 UNT/ML Ophthalmic Suspensio... SCD Clinical drug 10 10 View →
310190 Estradiol valerate 20 MG/ML Injectable Solution SCD Clinical drug 10 10 View →
312882 Salicylic acid 0.02 MG/MG Medicated Bar Soap SCD Clinical drug 10 10 View →
465355 Voriconazole 40 MG/ML Oral Suspension SCD Clinical drug 10 10 View →
581417 Psyllium 520 MG Oral Capsule SCD Clinical drug 10 10 View →
583459 Stannous fluoride 6.3 MG/ML Mouthwash SCD Clinical drug 10 10 View →
749802 Fenofibrate 120 MG Oral Tablet SCD Clinical drug 10 10 View →
749804 Fenofibrate 40 MG Oral Tablet SCD Clinical drug 10 10 View →
789980 Ampicillin 100 MG/ML Injectable Solution SCD Clinical drug 10 10 View →
847191 3 ML insulin aspart protamine, human 70 UNT/ML / insulin aspart, human 30 UNT/ML Pen Injec... SCD Clinical drug 10 10 View →
859824 Fluphenazine decanoate 25 MG/ML Injectable Solution SCD Clinical drug 10 10 View →
903843 Pyridostigmine bromide 12 MG/ML Oral Solution SCD Clinical drug 10 10 View →
966920 Polyethylene glycol 3350 236000 MG / potassium chloride 2970 MG / sodium bicarbonate 6740... SCD Clinical drug 10 10 View →
998212 1 ML morphine sulfate 2 MG/ML Prefilled Syringe SCD Clinical drug 10 10 View →
998213 1 ML morphine sulfate 4 MG/ML Prefilled Syringe SCD Clinical drug 10 10 View →
2636656 Acetaminophen 1000 MG / dextromethorphan hydrobromide 30 MG Powder for Oral Solution SCD Clinical drug 10 9 View →
876514 Amlodipine 10 MG / telmisartan 40 MG Oral Tablet SCD Clinical drug 10 8 View →
876519 Amlodipine 10 MG / telmisartan 80 MG Oral Tablet SCD Clinical drug 10 8 View →
876524 Amlodipine 5 MG / telmisartan 40 MG Oral Tablet SCD Clinical drug 10 8 View →
876529 Amlodipine 5 MG / telmisartan 80 MG Oral Tablet SCD Clinical drug 10 8 View →
1047755 Ethanol 0.75 ML/ML Topical Solution SCD Clinical drug 9 81 View →
312084 Ondansetron 24 MG Oral Tablet SCD Clinical drug 9 44 View →
1795481 1000 ML glucose 100 MG/ML Injection SCD Clinical drug 9 39 View →
252413 Topiramate 50 MG Oral Capsule SCD Clinical drug 9 39 View →
413101 Oxygen 20 % Gas for Inhalation SCD Clinical drug 9 38 View →
1734204 10 ML ropivacaine hydrochloride 2 MG/ML Injection [Naropin] SBD Branded drug 9 29 View →
1734208 20 ML ropivacaine hydrochloride 2 MG/ML Injection [Naropin] SBD Branded drug 9 29 View →
1734348 100 ML ropivacaine hydrochloride 2 MG/ML Injection [Naropin] SBD Branded drug 9 29 View →
1734356 200 ML ropivacaine hydrochloride 2 MG/ML Injection [Naropin] SBD Branded drug 9 29 View →
1734480 100 ML ropivacaine hydrochloride 5 MG/ML Injection [Naropin] SBD Branded drug 9 29 View →
1734482 200 ML ropivacaine hydrochloride 5 MG/ML Injection [Naropin] SBD Branded drug 9 29 View →
1734484 20 ML ropivacaine hydrochloride 5 MG/ML Injection [Naropin] SBD Branded drug 9 29 View →
1804176 Lidocaine 0.04 MG/MG / menthol 0.01 MG/MG Topical Gel SCD Clinical drug 9 28 View →
314266 Tacrolimus 0.001 MG/MG Topical Ointment SCD Clinical drug 9 27 View →
855292 Warfarin sodium 1 MG Oral Tablet [Jantoven] SBD Branded drug 9 27 View →
855300 Warfarin sodium 10 MG Oral Tablet [Jantoven] SBD Branded drug 9 27 View →
855306 Warfarin sodium 2 MG Oral Tablet [Jantoven] SBD Branded drug 9 27 View →
855316 Warfarin sodium 2.5 MG Oral Tablet [Jantoven] SBD Branded drug 9 27 View →
855322 Warfarin sodium 3 MG Oral Tablet [Jantoven] SBD Branded drug 9 27 View →
855328 Warfarin sodium 4 MG Oral Tablet [Jantoven] SBD Branded drug 9 27 View →
855336 Warfarin sodium 5 MG Oral Tablet [Jantoven] SBD Branded drug 9 27 View →
855342 Warfarin sodium 6 MG Oral Tablet [Jantoven] SBD Branded drug 9 27 View →
855348 Warfarin sodium 7.5 MG Oral Tablet [Jantoven] SBD Branded drug 9 27 View →
1111683 Menthol 0.04 MG/MG Topical Gel [Biofreeze] SBD Branded drug 9 25 View →
1855086 Thyroid (USP) 15 MG Oral Tablet [NP Thyroid] SBD Branded drug 9 25 View →
2703582 Metformin hydrochloride 750 MG Oral Tablet SCD Clinical drug 9 25 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.