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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
1052949 Benzalkonium chloride 1.2 MG/ML Topical Solution SCD Clinical drug 13 28 View →
211874 Aspirin 325 MG Oral Tablet [Bayer Aspirin] SBD Branded drug 13 28 View →
206352 Hydrocortisone 10 MG/ML Topical Cream [Cortizone] SBD Branded drug 13 27 View →
1367082 Benzalkonium chloride 1.3 MG/ML Medicated Liquid Soap [Softsoap Antibacterial] SBD Branded drug 13 26 View →
1599135 Cetylpyridinium chloride 0.75 MG/ML Mouthwash SCD Clinical drug 13 26 View →
351246 Montelukast 4 MG Oral Granules SCD Clinical drug 13 26 View →
485647 Fluocinonide 1 MG/ML Topical Cream SCD Clinical drug 13 26 View →
211151 Bismuth subsalicylate 262 MG Chewable Tablet [Pepto-bismol] SBD Branded drug 13 25 View →
308976 Carbamazepine 20 MG/ML Oral Suspension SCD Clinical drug 13 25 View →
1424614 Menthol 8.3 MG Oral Lozenge SCD Clinical drug 13 24 View →
313361 Thiothixene 10 MG Oral Capsule SCD Clinical drug 13 24 View →
847630 Calcium chloride 0.2 MG/ML / potassium chloride 0.3 MG/ML / sodium chloride 6 MG/ML / sodi... SCD Clinical drug 13 24 View →
905028 Risedronate sodium 150 MG Oral Tablet SCD Clinical drug 13 24 View →
198202 Rifampin 300 MG Oral Capsule SCD Clinical drug 13 23 View →
415976 Menthol 0.06 MG/MG Topical Gel SCD Clinical drug 13 23 View →
1599803 24 HR donepezil hydrochloride 10 MG / memantine hydrochloride 28 MG Extended Release Oral... SCD Clinical drug 13 21 View →
197405 Betamethasone 0.0005 MG/MG Topical Ointment SCD Clinical drug 13 21 View →
252296 Salicylic acid 0.005 MG/MG Topical Gel SCD Clinical drug 13 21 View →
403849 Estrogens, conjugated (USP) 0.45 MG Oral Tablet SCD Clinical drug 13 21 View →
848176 Augmented betamethasone 0.5 MG/ML Topical Cream SCD Clinical drug 13 21 View →
1011482 Cetirizine hydrochloride 10 MG Disintegrating Oral Tablet SCD Clinical drug 13 20 View →
1492387 Calcium carbonate 750 MG / simethicone 80 MG Chewable Tablet SCD Clinical drug 13 20 View →
1721684 1 ML epoetin alfa 10000 UNT/ML Injection SCD Clinical drug 13 20 View →
197453 Cefprozil 500 MG Oral Tablet SCD Clinical drug 13 20 View →
239998 1 ML epoetin alfa 2000 UNT/ML Injection SCD Clinical drug 13 20 View →
239999 1 ML epoetin alfa 4000 UNT/ML Injection SCD Clinical drug 13 20 View →
240000 Epoetin alfa 10000 UNT/ML Injectable Solution SCD Clinical drug 13 20 View →
240377 1 ML epoetin alfa 3000 UNT/ML Injection SCD Clinical drug 13 20 View →
241999 Epoetin alfa 20000 UNT/ML Injectable Solution SCD Clinical drug 13 20 View →
1739785 Brivaracetam 10 MG/ML Oral Solution SCD Clinical drug 13 19 View →
417424 Salicylic acid 10 MG/ML Topical Cream SCD Clinical drug 13 19 View →
856660 Dantrolene sodium 50 MG Oral Capsule SCD Clinical drug 13 19 View →
977939 Oxymorphone hydrochloride 5 MG Oral Tablet SCD Clinical drug 13 19 View →
197816 Indapamide 2.5 MG Oral Tablet SCD Clinical drug 13 18 View →
2642220 Glycerin 144 MG/ML / lidocaine 50 MG/ML / petrolatum 150 MG/ML / phenylephrine hydrochlori... SCD Clinical drug 13 18 View →
311753 Mometasone furoate 1 MG/ML Topical Cream SCD Clinical drug 13 18 View →
313009 Sodium chloride 1000 MG Oral Tablet SCD Clinical drug 13 18 View →
992432 Promethazine hydrochloride 1.25 MG/ML Oral Solution SCD Clinical drug 13 18 View →
1039483 Ethanol 0.6 ML/ML Topical Solution SCD Clinical drug 13 17 View →
1666800 5 ML midazolam 1 MG/ML Injection SCD Clinical drug 13 17 View →
1725175 10 ML bupivacaine hydrochloride 2.5 MG/ML Injection [Sensorcaine] SBD Branded drug 13 17 View →
313165 0.5 ML sumatriptan 12 MG/ML Injection SCD Clinical drug 13 17 View →
637146 Pectin 2.8 MG Oral Lozenge SCD Clinical drug 13 17 View →
756059 Lithium citrate 60 MG/ML Oral Solution SCD Clinical drug 13 17 View →
104884 Metoclopramide 1 MG/ML Oral Solution SCD Clinical drug 13 16 View →
1725046 30 ML bupivacaine hydrochloride 5 MG/ML Injection [Marcaine] SBD Branded drug 13 16 View →
1725079 10 ML bupivacaine hydrochloride 2.5 MG/ML Injection [Marcaine] SBD Branded drug 13 16 View →
197519 Clindamycin 10 MG/ML Topical Lotion SCD Clinical drug 13 16 View →
311040 Insulin aspart, human 100 UNT/ML Injectable Solution SCD Clinical drug 13 16 View →
313578 Vasopressin (USP) 20 UNT/ML Injectable Solution SCD Clinical drug 13 16 View →
828527 10 ML calcium chloride 100 MG/ML Prefilled Syringe SCD Clinical drug 13 16 View →
857224 Sevelamer hydrochloride 800 MG Oral Tablet SCD Clinical drug 13 16 View →
1190776 Atropine sulfate 0.4 MG/ML Injectable Solution SCD Clinical drug 13 15 View →
1297658 Esomeprazole 2.5 MG Granules for Oral Suspension SCD Clinical drug 13 15 View →
1718907 50 ML dexmedetomidine 0.004 MG/ML Injection [Precedex] SBD Branded drug 13 15 View →
1718910 100 ML dexmedetomidine 0.004 MG/ML Injection [Precedex] SBD Branded drug 13 15 View →
1734932 10 ML acyclovir 50 MG/ML Injection SCD Clinical drug 13 15 View →
1734934 20 ML acyclovir 50 MG/ML Injection SCD Clinical drug 13 15 View →
197351 6-aminocaproic acid 500 MG Oral Tablet SCD Clinical drug 13 15 View →
238542 Methyl salicylate 250 MG/ML Topical Cream SCD Clinical drug 13 15 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.