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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
310152 Erythromycin 0.02 MG/MG Topical Gel SCD Clinical drug 4 6 View →
310377 Fluorometholone 1 MG/ML Ophthalmic Suspension SCD Clinical drug 4 6 View →
311028 Insulin isophane, human 100 UNT/ML Injectable Suspension SCD Clinical drug 4 6 View →
314935 Povidone-iodine 5 MG/ML Mouthwash SCD Clinical drug 4 6 View →
351855 Loratadine 10 MG Disintegrating Oral Tablet [Alavert] SBD Branded drug 4 6 View →
403875 Emtricitabine 200 MG Oral Capsule SCD Clinical drug 4 6 View →
418610 Menthol 0.01 MG/MG Topical Ointment SCD Clinical drug 4 6 View →
433194 Menthol 8.6 MG Oral Lozenge SCD Clinical drug 4 6 View →
485032 Tiotropium 0.018 MG Inhalation Powder SCD Clinical drug 4 6 View →
577785 Candesartan cilexetil 4 MG Oral Tablet [Atacand] SBD Branded drug 4 6 View →
577787 Candesartan cilexetil 8 MG Oral Tablet [Atacand] SBD Branded drug 4 6 View →
597852 Anagrelide 1 MG Oral Capsule SCD Clinical drug 4 6 View →
616435 Mycophenolate mofetil 500 MG Oral Tablet [Cellcept] SBD Branded drug 4 6 View →
616444 Mycophenolate mofetil 200 MG/ML Oral Suspension [Cellcept] SBD Branded drug 4 6 View →
616447 Mycophenolate mofetil 250 MG Oral Capsule [Cellcept] SBD Branded drug 4 6 View →
639539 Candesartan cilexetil 16 MG Oral Tablet [Atacand] SBD Branded drug 4 6 View →
639543 Candesartan cilexetil 32 MG Oral Tablet [Atacand] SBD Branded drug 4 6 View →
647237 Glimepiride 2 MG / pioglitazone 30 MG Oral Tablet SCD Clinical drug 4 6 View →
647239 Glimepiride 4 MG / pioglitazone 30 MG Oral Tablet SCD Clinical drug 4 6 View →
686441 24 HR paliperidone 3 MG Extended Release Oral Tablet [Invega] SBD Branded drug 4 6 View →
686443 24 HR paliperidone 6 MG Extended Release Oral Tablet [Invega] SBD Branded drug 4 6 View →
686445 24 HR paliperidone 9 MG Extended Release Oral Tablet [Invega] SBD Branded drug 4 6 View →
723562 Benzocaine 200 MG/ML Topical Cream SCD Clinical drug 4 6 View →
805127 Soybean oil 200 MG/ML Injectable Suspension [Intralipid] SBD Branded drug 4 6 View →
806728 Sodium chloride 30 MG/ML Nasal Spray SCD Clinical drug 4 6 View →
835547 Petrolatum 0.42 MG/MG Topical Ointment SCD Clinical drug 4 6 View →
846192 {21 (dexamethasone 1.5 MG Oral Tablet) } Pack GPCK Generic pack 4 6 View →
847187 3 ML insulin isophane, human 70 UNT/ML / insulin, regular, human 30 UNT/ML Pen Injector SCD Clinical drug 4 6 View →
847232 3 ML insulin glargine 100 UNT/ML Pen Injector [Lantus] SBD Branded drug 4 6 View →
855170 Levocetirizine dihydrochloride 0.5 MG/ML Oral Solution [Xyzal] SBD Branded drug 4 6 View →
860215 Megestrol acetate 20 MG Oral Tablet SCD Clinical drug 4 6 View →
861066 Sertraline 20 MG/ML Oral Solution [Zoloft] SBD Branded drug 4 6 View →
861467 Meperidine hydrochloride 50 MG Oral Tablet SCD Clinical drug 4 6 View →
866105 24 HR paliperidone 1.5 MG Extended Release Oral Tablet [Invega] SBD Branded drug 4 6 View →
905390 Carglumic acid 200 MG Tablet for Oral Suspension SCD Clinical drug 4 6 View →
997010 Quinine sulfate 324 MG Oral Capsule SCD Clinical drug 4 6 View →
1088774 Potassium bicarbonate 25 MEQ Effervescent Oral Tablet [Effer-K] SBD Branded drug 4 5 View →
1090946 Dextromethorphan hydrobromide 1 MG/ML Oral Solution SCD Clinical drug 4 5 View →
1114361 Chlorpheniramine maleate 0.133 MG/ML / dextromethorphan hydrobromide 1 MG/ML Oral Solution SCD Clinical drug 4 5 View →
1245229 Benzalkonium chloride 1 MG/ML / benzocaine 50 MG/ML Topical Spray SCD Clinical drug 4 5 View →
1302833 24 HR phentermine 7.5 MG / topiramate 46 MG Extended Release Oral Capsule [Qsymia] SBD Branded drug 4 5 View →
1302845 24 HR phentermine 3.75 MG / topiramate 23 MG Extended Release Oral Capsule [Qsymia] SBD Branded drug 4 5 View →
1302856 24 HR phentermine 15 MG / topiramate 92 MG Extended Release Oral Capsule [Qsymia] SBD Branded drug 4 5 View →
1313061 24 HR phentermine 11.25 MG / topiramate 69 MG Extended Release Oral Capsule [Qsymia] SBD Branded drug 4 5 View →
1364352 Ponatinib 15 MG Oral Tablet SCD Clinical drug 4 5 View →
1364358 Ponatinib 15 MG Oral Tablet [Iclusig] SBD Branded drug 4 5 View →
1364360 Ponatinib 45 MG Oral Tablet SCD Clinical drug 4 5 View →
1364362 Ponatinib 45 MG Oral Tablet [Iclusig] SBD Branded drug 4 5 View →
1440184 Hydrocortisone acetate 0.01 MG/MG Topical Ointment SCD Clinical drug 4 5 View →
1486874 Menthol 30 MG/ML / methyl salicylate 100 MG/ML Topical Cream SCD Clinical drug 4 5 View →
1487288 Acetaminophen 325 MG / oxycodone hydrochloride 2.5 MG Oral Tablet [Endocet] SBD Branded drug 4 5 View →
1489127 Sodium fluoride 0.0023 MG/MG Toothpaste SCD Clinical drug 4 5 View →
153892 Montelukast 10 MG Oral Tablet [Singulair] SBD Branded drug 4 5 View →
153893 Montelukast 5 MG Chewable Tablet [Singulair] SBD Branded drug 4 5 View →
1591951 Colloidal oatmeal 20 MG/ML Topical Lotion SCD Clinical drug 4 5 View →
1602163 1.5 ML aripiprazole 200 MG/ML Prefilled Syringe SCD Clinical drug 4 5 View →
1602171 2 ML aripiprazole 200 MG/ML Prefilled Syringe SCD Clinical drug 4 5 View →
1602604 1.5 ML aripiprazole 200 MG/ML Prefilled Syringe [Abilify] SBD Branded drug 4 5 View →
1602607 2 ML aripiprazole 200 MG/ML Prefilled Syringe [Abilify] SBD Branded drug 4 5 View →
1659812 Aripiprazole 400 MG Injection SCD Clinical drug 4 5 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.