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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
1659134 Piperacillin 2000 MG / tazobactam 250 MG Injection [Zosyn] SBD Branded drug 6 6 View →
1659139 Piperacillin 3000 MG / tazobactam 375 MG Injection [Zosyn] SBD Branded drug 6 6 View →
1659151 Piperacillin 4000 MG / tazobactam 500 MG Injection [Zosyn] SBD Branded drug 6 6 View →
1666116 {1 (brompheniramine maleate 0.2 MG/ML / dextromethorphan hydrobromide 1 MG/ML / phenylephr... GPCK Generic pack 6 6 View →
1666620 20 ML baclofen 2 MG/ML Injection [Lioresal] SBD Branded drug 6 6 View →
1666622 5 ML baclofen 2 MG/ML Injection SCD Clinical drug 6 6 View →
1666623 5 ML baclofen 2 MG/ML Injection [Lioresal] SBD Branded drug 6 6 View →
1722919 Cefotetan 1000 MG Injection SCD Clinical drug 6 6 View →
1722921 Cefotetan 2000 MG Injection SCD Clinical drug 6 6 View →
1729581 Remifentanil 1 MG Injection [Ultiva] SBD Branded drug 6 6 View →
1729586 Remifentanil 2 MG Injection [Ultiva] SBD Branded drug 6 6 View →
1729712 Remifentanil 5 MG Injection [Ultiva] SBD Branded drug 6 6 View →
1737795 Sodium monofluorophosphate 0.0074 MG/MG Toothpaste SCD Clinical drug 6 6 View →
1739809 24 HR amphetamine 12.5 MG Extended Release Oral Tablet [Adzenys] SBD Branded drug 6 6 View →
1739815 24 HR amphetamine 15.7 MG Extended Release Oral Tablet [Adzenys] SBD Branded drug 6 6 View →
1739821 24 HR amphetamine 18.8 MG Extended Release Oral Tablet [Adzenys] SBD Branded drug 6 6 View →
1739827 24 HR amphetamine 3.1 MG Extended Release Oral Tablet [Adzenys] SBD Branded drug 6 6 View →
1739833 24 HR amphetamine 6.3 MG Extended Release Oral Tablet [Adzenys] SBD Branded drug 6 6 View →
1739839 24 HR amphetamine 9.4 MG Extended Release Oral Tablet [Adzenys] SBD Branded drug 6 6 View →
1788947 Dexmedetomidine 0.1 MG/ML Injectable Solution SCD Clinical drug 6 6 View →
1791588 Ifosfamide 3000 MG Injection SCD Clinical drug 6 6 View →
1796419 1 ML pralatrexate 20 MG/ML Injection SCD Clinical drug 6 6 View →
1796424 2 ML pralatrexate 20 MG/ML Injection SCD Clinical drug 6 6 View →
1806919 Amylase 61500 UNT / lipase 10500 UNT / protease 35500 UNT Delayed Release Oral Capsule SCD Clinical drug 6 6 View →
1806921 Amylase 61500 UNT / lipase 10500 UNT / protease 35500 UNT Delayed Release Oral Capsule [Pa... SBD Branded drug 6 6 View →
1806924 Amylase 98400 UNT / lipase 16800 UNT / protease 56800 UNT Delayed Release Oral Capsule SCD Clinical drug 6 6 View →
1806926 Amylase 98400 UNT / lipase 16800 UNT / protease 56800 UNT Delayed Release Oral Capsule [Pa... SBD Branded drug 6 6 View →
1806929 Amylase 83900 UNT / lipase 21000 UNT / protease 54700 UNT Delayed Release Oral Capsule SCD Clinical drug 6 6 View →
1806931 Amylase 83900 UNT / lipase 21000 UNT / protease 54700 UNT Delayed Release Oral Capsule [Pa... SBD Branded drug 6 6 View →
1806964 Amylase 24600 UNT / lipase 4200 UNT / protease 14200 UNT Delayed Release Oral Capsule SCD Clinical drug 6 6 View →
1806966 Amylase 24600 UNT / lipase 4200 UNT / protease 14200 UNT Delayed Release Oral Capsule [Pan... SBD Branded drug 6 6 View →
1809083 5 ML sulfamethoxazole 80 MG/ML / trimethoprim 16 MG/ML Injection SCD Clinical drug 6 6 View →
1860491 12 HR hydrocodone bitartrate 10 MG Extended Release Oral Capsule SCD Clinical drug 6 6 View →
1860493 12 HR hydrocodone bitartrate 15 MG Extended Release Oral Capsule SCD Clinical drug 6 6 View →
1860495 12 HR hydrocodone bitartrate 20 MG Extended Release Oral Capsule SCD Clinical drug 6 6 View →
1860497 12 HR hydrocodone bitartrate 30 MG Extended Release Oral Capsule SCD Clinical drug 6 6 View →
1860499 12 HR hydrocodone bitartrate 40 MG Extended Release Oral Capsule SCD Clinical drug 6 6 View →
1860501 12 HR hydrocodone bitartrate 50 MG Extended Release Oral Capsule SCD Clinical drug 6 6 View →
1866190 250 ML glucose 50 MG/ML / potassium chloride 0.02 MEQ/ML / sodium chloride 2.25 MG/ML Inje... SCD Clinical drug 6 6 View →
1866551 1 ML nalbuphine hydrochloride 20 MG/ML Injection SCD Clinical drug 6 6 View →
1870650 2 ML gentamicin 40 MG/ML Injection SCD Clinical drug 6 6 View →
1922721 Atrial Fibrillation sotalol hydrochloride 120 MG Oral Tablet [Betapace] SBD Branded drug 6 6 View →
1922764 Atrial Fibrillation sotalol hydrochloride 160 MG Oral Tablet [Betapace] SBD Branded drug 6 6 View →
1922766 Atrial Fibrillation sotalol hydrochloride 80 MG Oral Tablet [Betapace] SBD Branded drug 6 6 View →
1923423 Sotalol hydrochloride 120 MG Oral Tablet [Betapace] SBD Branded drug 6 6 View →
1923425 Sotalol hydrochloride 160 MG Oral Tablet [Betapace] SBD Branded drug 6 6 View →
1923427 Sotalol hydrochloride 80 MG Oral Tablet [Betapace] SBD Branded drug 6 6 View →
1923825 Deferasirox 90 MG Oral Granules [Jadenu] SBD Branded drug 6 6 View →
1923827 Deferasirox 360 MG Oral Granules [Jadenu] SBD Branded drug 6 6 View →
1923829 Deferasirox 180 MG Oral Granules [Jadenu] SBD Branded drug 6 6 View →
1926513 Benzyl alcohol 0.1 ML/ML / lidocaine hydrochloride 40 MG/ML Topical Cream SCD Clinical drug 6 6 View →
1926840 Methylphenidate 17.3 MG Disintegrating Oral Tablet SCD Clinical drug 6 6 View →
1926849 Methylphenidate 25.9 MG Disintegrating Oral Tablet SCD Clinical drug 6 6 View →
1926853 Methylphenidate 8.6 MG Disintegrating Oral Tablet SCD Clinical drug 6 6 View →
1946519 3-Month 1.5 ML leuprolide acetate 20 MG/ML Prefilled Syringe SCD Clinical drug 6 6 View →
1946520 3-Month 1.5 ML leuprolide acetate 20 MG/ML Prefilled Syringe [Lupron] SBD Branded drug 6 6 View →
197454 Cephalexin 500 MG Oral Tablet SCD Clinical drug 6 6 View →
197653 Estazolam 1 MG Oral Tablet SCD Clinical drug 6 6 View →
197654 Estazolam 2 MG Oral Tablet SCD Clinical drug 6 6 View →
1987644 Tretinoin 0.0006 MG/MG Topical Gel SCD Clinical drug 6 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.