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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
1091225 8 HR methylphenidate hydrochloride 20 MG Extended Release Oral Tablet SCD Clinical drug 8 12 View →
1658244 10 ML magnesium sulfate 500 MG/ML Injection SCD Clinical drug 8 12 View →
1724338 1 ML hydromorphone hydrochloride 10 MG/ML Injection SCD Clinical drug 8 12 View →
1724340 5 ML hydromorphone hydrochloride 10 MG/ML Injection SCD Clinical drug 8 12 View →
1724341 50 ML hydromorphone hydrochloride 10 MG/ML Injection SCD Clinical drug 8 12 View →
1799704 250 ML soybean oil 200 MG/ML Injection SCD Clinical drug 8 12 View →
1799724 500 ML soybean oil 200 MG/ML Injection SCD Clinical drug 8 12 View →
1805425 24 HR donepezil hydrochloride 10 MG / memantine hydrochloride 7 MG Extended Release Oral C... SCD Clinical drug 8 12 View →
1807896 2 ML paricalcitol 0.005 MG/ML Injection SCD Clinical drug 8 12 View →
238013 Oxytocin 10 UNT/ML Injectable Solution SCD Clinical drug 8 12 View →
310405 Fluvastatin 40 MG Oral Capsule SCD Clinical drug 8 12 View →
705129 Nitroglycerin 0.4 MG/ACTUAT Mucosal Spray SCD Clinical drug 8 12 View →
829539 Adapalene 0.001 MG/MG / benzoyl peroxide 0.025 MG/MG Topical Gel SCD Clinical drug 8 12 View →
867502 Pazopanib 200 MG Oral Tablet SCD Clinical drug 8 12 View →
1085728 Triamcinolone acetonide 0.001 MG/MG Oral Paste SCD Clinical drug 8 11 View →
1095223 Ferrous fumarate 75 MG Chewable Tablet SCD Clinical drug 8 11 View →
1375917 Bromfenac 0.7 MG/ML Ophthalmic Solution SCD Clinical drug 8 11 View →
1655967 4 ML methotrexate 25 MG/ML Injection SCD Clinical drug 8 11 View →
1655968 8 ML methotrexate 25 MG/ML Injection SCD Clinical drug 8 11 View →
1656351 Sacubitril 49 MG / valsartan 51 MG Oral Tablet [Entresto] SBD Branded drug 8 11 View →
1656356 Sacubitril 97 MG / valsartan 103 MG Oral Tablet [Entresto] SBD Branded drug 8 11 View →
1658137 Sodium fluoride 0.2 MG/ML Mouthwash [Crest] SBD Branded drug 8 11 View →
1737466 100 ML tirofiban 0.05 MG/ML Injection SCD Clinical drug 8 11 View →
1797528 40 ML oxaliplatin 5 MG/ML Injection SCD Clinical drug 8 11 View →
199106 Pyrantel pamoate 144 MG/ML Oral Suspension SCD Clinical drug 8 11 View →
251400 Salicylic acid 0.02 MG/MG Topical Ointment SCD Clinical drug 8 11 View →
2611794 Methocarbamol 1000 MG Oral Tablet SCD Clinical drug 8 11 View →
314088 Methscopolamine bromide 2.5 MG Oral Tablet SCD Clinical drug 8 11 View →
403914 Methscopolamine bromide 5 MG Oral Tablet SCD Clinical drug 8 11 View →
728550 Ketoconazole 20 MG/ML Topical Foam SCD Clinical drug 8 11 View →
896244 120 ACTUAT fluticasone propionate 0.115 MG/ACTUAT / salmeterol 0.021 MG/ACTUAT Metered Dos... SCD Clinical drug 8 11 View →
1001405 Docetaxel 20 MG/ML Injectable Solution SCD Clinical drug 8 10 View →
1048445 Colestipol hydrochloride 1000 MG Oral Tablet SCD Clinical drug 8 10 View →
1658690 1000 ML heparin sodium, porcine 2 UNT/ML Injection SCD Clinical drug 8 10 View →
1658692 500 ML heparin sodium, porcine 2 UNT/ML Injection SCD Clinical drug 8 10 View →
1743720 Methylprednisolone 500 MG Injection SCD Clinical drug 8 10 View →
1870205 NDA201739 0.3 ML epinephrine 1 MG/ML Auto-Injector SCD Clinical drug 8 10 View →
1870232 NDA201739 0.15 ML epinephrine 1 MG/ML Auto-Injector SCD Clinical drug 8 10 View →
198312 Triamterene 100 MG Oral Capsule SCD Clinical drug 8 10 View →
2002800 Sodium citrate 230 MG Chewable Tablet SCD Clinical drug 8 10 View →
252062 Glycerin 1000 MG Rectal Suppository SCD Clinical drug 8 10 View →
284397 2 ML dexmedetomidine 0.1 MG/ML Injection [Precedex] SBD Branded drug 8 10 View →
312370 Phenobarbital 130 MG/ML Injectable Solution SCD Clinical drug 8 10 View →
313306 Theophylline 5.33 MG/ML Oral Solution SCD Clinical drug 8 10 View →
476549 Calcium carbonate 675 MG / magnesium hydroxide 135 MG Chewable Tablet SCD Clinical drug 8 10 View →
858116 Fenoprofen 400 MG Oral Capsule SCD Clinical drug 8 10 View →
897653 1 ML hydromorphone hydrochloride 1 MG/ML Injection SCD Clinical drug 8 10 View →
897753 1 ML hydromorphone hydrochloride 4 MG/ML Injection SCD Clinical drug 8 10 View →
991065 2 ML dicyclomine hydrochloride 10 MG/ML Injection SCD Clinical drug 8 10 View →
1000895 Sulfacetamide sodium 100 MG/ML / sulfur 20 MG/ML Medicated Liquid Soap SCD Clinical drug 8 9 View →
1012066 5 ML lidocaine hydrochloride 10 MG/ML Prefilled Syringe SCD Clinical drug 8 9 View →
1038741 Benzalkonium chloride 1.2 MG/ML Medicated Pad SCD Clinical drug 8 9 View →
1053330 Sulfur 100 MG/ML Medicated Liquid Soap SCD Clinical drug 8 9 View →
1117536 Potassium nitrate 250 MG/ML / silver nitrate 750 MG/ML Medicated Pad SCD Clinical drug 8 9 View →
1249617 Acetaminophen 300 MG / butalbital 50 MG Oral Tablet SCD Clinical drug 8 9 View →
1373333 Isotretinoin 10 MG Oral Capsule [Zenatane] SBD Branded drug 8 9 View →
1373335 Isotretinoin 20 MG Oral Capsule [Zenatane] SBD Branded drug 8 9 View →
1373337 Isotretinoin 40 MG Oral Capsule [Zenatane] SBD Branded drug 8 9 View →
1492732 Apremilast 10 MG Oral Tablet SCD Clinical drug 8 9 View →
1492738 Apremilast 10 MG Oral Tablet [Otezla] SBD Branded drug 8 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.