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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
197511 Ciprofloxacin 250 MG Oral Tablet SCD Clinical drug 88 280 View →
884173 Clonidine hydrochloride 0.1 MG Oral Tablet SCD Clinical drug 88 268 View →
199167 Phenobarbital 32.4 MG Oral Tablet SCD Clinical drug 88 224 View →
1656340 Sacubitril 24 MG / valsartan 26 MG Oral Tablet SCD Clinical drug 88 211 View →
314228 Sildenafil 25 MG Oral Tablet SCD Clinical drug 88 207 View →
896758 Labetalol hydrochloride 100 MG Oral Tablet SCD Clinical drug 88 183 View →
978010 Loperamide hydrochloride 2 MG Oral Tablet SCD Clinical drug 88 154 View →
993466 Midodrine hydrochloride 2.5 MG Oral Tablet SCD Clinical drug 88 132 View →
312122 Oseltamivir 75 MG Oral Capsule SCD Clinical drug 88 110 View →
308907 Calcium carbonate 500 MG Chewable Tablet SCD Clinical drug 88 100 View →
197843 Isotretinoin 10 MG Oral Capsule SCD Clinical drug 88 95 View →
197844 Isotretinoin 20 MG Oral Capsule SCD Clinical drug 88 95 View →
403930 Isotretinoin 30 MG Oral Capsule SCD Clinical drug 88 95 View →
998540 Miconazole nitrate 20 MG/ML Vaginal Cream SCD Clinical drug 88 89 View →
1049225 Acetaminophen 325 MG / oxycodone hydrochloride 7.5 MG Oral Tablet SCD Clinical drug 87 268 View →
197700 Fluconazole 200 MG Oral Tablet SCD Clinical drug 87 253 View →
1049621 Oxycodone hydrochloride 5 MG Oral Tablet SCD Clinical drug 87 250 View →
896762 Labetalol hydrochloride 200 MG Oral Tablet SCD Clinical drug 87 176 View →
993462 Midodrine hydrochloride 10 MG Oral Tablet SCD Clinical drug 87 131 View →
200329 Omeprazole 40 MG Delayed Release Oral Capsule SCD Clinical drug 86 322 View →
314231 Simvastatin 10 MG Oral Tablet SCD Clinical drug 86 266 View →
313586 Venlafaxine 75 MG Oral Tablet SCD Clinical drug 86 241 View →
995218 Hydroxyzine hydrochloride 10 MG Oral Tablet SCD Clinical drug 86 241 View →
314208 Ropinirole 1 MG Oral Tablet SCD Clinical drug 86 150 View →
312845 Ropinirole 0.25 MG Oral Tablet SCD Clinical drug 86 140 View →
1369842 Acetaminophen 21.7 MG/ML / dextromethorphan hydrobromide 0.667 MG/ML / guaifenesin 13.3 MG... SCD Clinical drug 86 98 View →
1731590 2 ML glycopyrrolate 0.2 MG/ML Injection SCD Clinical drug 86 95 View →
1361226 Heparin sodium, porcine 1000 UNT/ML Injectable Solution SCD Clinical drug 86 88 View →
861221 24 HR amphetamine aspartate 2.5 MG / amphetamine sulfate 2.5 MG / dextroamphetamine saccha... SCD Clinical drug 86 86 View →
861225 24 HR amphetamine aspartate 5 MG / amphetamine sulfate 5 MG / dextroamphetamine saccharate... SCD Clinical drug 86 86 View →
861227 24 HR amphetamine aspartate 6.25 MG / amphetamine sulfate 6.25 MG / dextroamphetamine sacc... SCD Clinical drug 86 86 View →
861232 24 HR amphetamine aspartate 7.5 MG / amphetamine sulfate 7.5 MG / dextroamphetamine saccha... SCD Clinical drug 86 86 View →
861237 24 HR amphetamine aspartate 1.25 MG / amphetamine sulfate 1.25 MG / dextroamphetamine sacc... SCD Clinical drug 86 86 View →
1649988 Doxycycline hyclate 100 MG Oral Capsule SCD Clinical drug 85 298 View →
1738495 Paroxetine hydrochloride 20 MG Oral Tablet SCD Clinical drug 85 278 View →
198086 Phenobarbital 16.2 MG Oral Tablet SCD Clinical drug 85 220 View →
387013 Nebivolol 5 MG Oral Tablet SCD Clinical drug 85 219 View →
855296 Warfarin sodium 10 MG Oral Tablet SCD Clinical drug 85 213 View →
308762 Bismuth subsalicylate 17.5 MG/ML Oral Suspension SCD Clinical drug 85 145 View →
1010671 Lidocaine hydrochloride 20 MG/ML Injectable Solution SCD Clinical drug 85 138 View →
1725082 30 ML bupivacaine hydrochloride 2.5 MG/ML Injection SCD Clinical drug 85 105 View →
861223 24 HR amphetamine aspartate 3.75 MG / amphetamine sulfate 3.75 MG / dextroamphetamine sacc... SCD Clinical drug 85 85 View →
199164 Phenobarbital 97.2 MG Oral Tablet SCD Clinical drug 84 218 View →
856448 Propranolol hydrochloride 10 MG Oral Tablet SCD Clinical drug 84 217 View →
855324 Warfarin sodium 4 MG Oral Tablet SCD Clinical drug 84 204 View →
859040 Pramipexole dihydrochloride 0.25 MG Oral Tablet SCD Clinical drug 84 180 View →
91349 Hydrogen peroxide 30 MG/ML Topical Solution SCD Clinical drug 84 157 View →
687043 Amphetamine aspartate 3.125 MG / amphetamine sulfate 3.125 MG / dextroamphetamine sacchara... SCD Clinical drug 84 143 View →
197845 Isotretinoin 40 MG Oral Capsule SCD Clinical drug 84 91 View →
1738483 Paroxetine hydrochloride 10 MG Oral Tablet SCD Clinical drug 83 262 View →
993518 12 HR bupropion hydrochloride 150 MG Extended Release Oral Tablet SCD Clinical drug 83 252 View →
310798 Hydrochlorothiazide 25 MG Oral Tablet SCD Clinical drug 83 248 View →
349373 Olmesartan medoxomil 5 MG Oral Tablet SCD Clinical drug 83 239 View →
859044 Pramipexole dihydrochloride 0.5 MG Oral Tablet SCD Clinical drug 83 179 View →
318272 Aspirin 81 MG Chewable Tablet SCD Clinical drug 83 108 View →
996520 Dextromethorphan hydrobromide 2 MG/ML / guaifenesin 20 MG/ML Oral Solution SCD Clinical drug 83 106 View →
312881 Salicylic acid 170 MG/ML Topical Solution SCD Clinical drug 83 92 View →
1361615 Heparin sodium, porcine 5000 UNT/ML Injectable Solution SCD Clinical drug 83 85 View →
830795 24 HR diltiazem hydrochloride 360 MG Extended Release Oral Capsule SCD Clinical drug 82 290 View →
1738511 Paroxetine hydrochloride 40 MG Oral Tablet SCD Clinical drug 82 258 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.