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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 Dr. Brian Staiger, PharmD

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.

Ingredient

The active drug substance itself — no strength, form, or brand attached. Example: ibuprofen.

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.

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.

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 Ingredient · IN

Every web starts here: one RxCUI, one fixed meaning in the RxNorm vocabulary.

Brand names (BN) 1

BN, a brand name: the trade name alone — no strength, no form.
- Advil 153010 BN
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 DF
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 SCD
- Ibuprofen 400 MG Oral Tablet 197805 SCD
- Ibuprofen 600 MG Oral Tablet 197806 SCD
- Ibuprofen 800 MG Oral Tablet 197807 SCD
Branded drugs (SBD) 4

SBD, a branded drug: that exact clinical drug under a brand name.
- Ibuprofen 200 MG Oral Tablet [Advil] 153008 SBD
- Ibuprofen 200 MG Oral Tablet [Genpril] 206886 SBD
- Ibuprofen 600 MG Oral Tablet [Ibu] 206913 SBD
- Ibuprofen 800 MG Oral Tablet [Ibu] 206917 SBD

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
847348	1.5 ML somatropin 6.67 MG/ML Pen Injector [Norditropin]	SBD	Branded drug	4	8	View →
849850	3 ML somatropin 10 MG/ML Pen Injector	SCD	Clinical drug	4	8	View →
849851	3 ML somatropin 10 MG/ML Pen Injector [Norditropin]	SBD	Branded drug	4	8	View →
856483	24 HR propranolol hydrochloride 160 MG Extended Release Oral Capsule [Inderal]	SBD	Branded drug	4	8	View →
856537	24 HR propranolol hydrochloride 60 MG Extended Release Oral Capsule [Inderal]	SBD	Branded drug	4	8	View →
857166	Fosinopril sodium 10 MG / hydrochlorothiazide 12.5 MG Oral Tablet	SCD	Clinical drug	4	8	View →
857174	Fosinopril sodium 20 MG / hydrochlorothiazide 12.5 MG Oral Tablet	SCD	Clinical drug	4	8	View →
858824	Enalapril maleate 5 MG / hydrochlorothiazide 12.5 MG Oral Tablet	SCD	Clinical drug	4	8	View →
860771	Trimethobenzamide hydrochloride 300 MG Oral Capsule	SCD	Clinical drug	4	8	View →
863758	Oxybutynin chloride 2.5 MG Oral Tablet	SCD	Clinical drug	4	8	View →
905168	Protriptyline hydrochloride 10 MG Oral Tablet	SCD	Clinical drug	4	8	View →
905172	Protriptyline hydrochloride 5 MG Oral Tablet	SCD	Clinical drug	4	8	View →
1010835	Lidocaine hydrochloride 30 MG/ML Topical Cream	SCD	Clinical drug	4	7	View →
1047440	1 ML baclofen 0.05 MG/ML Prefilled Syringe [Gablofen]	SBD	Branded drug	4	7	View →
1047444	20 ML baclofen 0.5 MG/ML Injection [Gablofen]	SBD	Branded drug	4	7	View →
1114098	Glycerin 75 MG/ML Medicated Pad	SCD	Clinical drug	4	7	View →
1116967	Capsaicin 0.25 MG/ML / menthol 100 MG/ML / methyl salicylate 300 MG/ML Topical Lotion	SCD	Clinical drug	4	7	View →
1116971	Capsaicin 0.25 MG/ML / menthol 100 MG/ML / methyl salicylate 300 MG/ML Topical Lotion [Den...	SBD	Branded drug	4	7	View →
1145929	1 ML abatacept 125 MG/ML Prefilled Syringe	SCD	Clinical drug	4	7	View →
1145932	1 ML abatacept 125 MG/ML Prefilled Syringe [Orencia]	SBD	Branded drug	4	7	View →
1191171	Chlorhexidine gluconate 31.5 MG/ML / isopropyl alcohol 0.7 ML/ML Medicated Pad	SCD	Clinical drug	4	7	View →
1301627	20 ML baclofen 1 MG/ML Injection [Gablofen]	SBD	Branded drug	4	7	View →
1366736	Chlorhexidine gluconate 31.5 MG/ML / isopropyl alcohol 0.7 ML/ML Medicated Pad [Prevantics...	SBD	Branded drug	4	7	View →
1369783	20 ML baclofen 0.5 MG/ML Prefilled Syringe	SCD	Clinical drug	4	7	View →
1369784	20 ML baclofen 0.5 MG/ML Prefilled Syringe [Gablofen]	SBD	Branded drug	4	7	View →
1369787	20 ML baclofen 1 MG/ML Prefilled Syringe	SCD	Clinical drug	4	7	View →
1369788	20 ML baclofen 1 MG/ML Prefilled Syringe [Gablofen]	SBD	Branded drug	4	7	View →
1369791	20 ML baclofen 2 MG/ML Prefilled Syringe	SCD	Clinical drug	4	7	View →
1369792	20 ML baclofen 2 MG/ML Prefilled Syringe [Gablofen]	SBD	Branded drug	4	7	View →
1370763	Hydrocortisone butyrate 1 MG/ML Topical Lotion	SCD	Clinical drug	4	7	View →
1665895	1 ML evolocumab 140 MG/ML Auto-Injector	SCD	Clinical drug	4	7	View →
1665900	1 ML evolocumab 140 MG/ML Auto-Injector [Repatha]	SBD	Branded drug	4	7	View →
1665904	1 ML evolocumab 140 MG/ML Prefilled Syringe	SCD	Clinical drug	4	7	View →
1665906	1 ML evolocumab 140 MG/ML Prefilled Syringe [Repatha]	SBD	Branded drug	4	7	View →
1666615	20 ML baclofen 2 MG/ML Injection [Gablofen]	SBD	Branded drug	4	7	View →
1743781	1 ML methylprednisolone acetate 40 MG/ML Injection [Depo-Medrol]	SBD	Branded drug	4	7	View →
1791403	250 ML mannitol 200 MG/ML Injection	SCD	Clinical drug	4	7	View →
1791408	500 ML mannitol 200 MG/ML Injection	SCD	Clinical drug	4	7	View →
1799228	1 ML abatacept 125 MG/ML Auto-Injector	SCD	Clinical drug	4	7	View →
1799230	1 ML abatacept 125 MG/ML Auto-Injector [Orencia]	SBD	Branded drug	4	7	View →
1801319	3.5 ML evolocumab 120 MG/ML Cartridge	SCD	Clinical drug	4	7	View →
1801322	3.5 ML evolocumab 120 MG/ML Cartridge [Repatha]	SBD	Branded drug	4	7	View →
1925254	0.4 ML abatacept 125 MG/ML Prefilled Syringe	SCD	Clinical drug	4	7	View →
1925255	0.4 ML abatacept 125 MG/ML Prefilled Syringe [Orencia]	SBD	Branded drug	4	7	View →
1925256	0.7 ML abatacept 125 MG/ML Prefilled Syringe	SCD	Clinical drug	4	7	View →
1925257	0.7 ML abatacept 125 MG/ML Prefilled Syringe [Orencia]	SBD	Branded drug	4	7	View →
1990857	Coagulation factor IX (recombinant), glycopegylated 1 UNT Injection	SCD	Clinical drug	4	7	View →
1990862	Coagulation factor IX (recombinant), glycopegylated 1 UNT Injection [Rebinyn]	SBD	Branded drug	4	7	View →
199680	Dimethicone 10 MG/ML Topical Lotion	SCD	Clinical drug	4	7	View →
1999667	Bictegravir 50 MG / emtricitabine 200 MG / tenofovir alafenamide 25 MG Oral Tablet	SCD	Clinical drug	4	7	View →
1999673	Bictegravir 50 MG / emtricitabine 200 MG / tenofovir alafenamide 25 MG Oral Tablet [Biktar...	SBD	Branded drug	4	7	View →
210208	Selenium sulfide 10 MG/ML Medicated Shampoo [Selsun Blue]	SBD	Branded drug	4	7	View →
2105862	Petrolatum 330 MG/ML Topical Cream	SCD	Clinical drug	4	7	View →
2108924	Estradiol 1 MG / progesterone 100 MG Oral Capsule	SCD	Clinical drug	4	7	View →
2108930	Estradiol 1 MG / progesterone 100 MG Oral Capsule [Bijuva]	SBD	Branded drug	4	7	View →
2199299	0.1 ML glucagon 5 MG/ML Auto-Injector	SCD	Clinical drug	4	7	View →
2199304	0.1 ML glucagon 5 MG/ML Auto-Injector [Gvoke]	SBD	Branded drug	4	7	View →
2199307	0.2 ML glucagon 5 MG/ML Auto-Injector	SCD	Clinical drug	4	7	View →
2199308	0.2 ML glucagon 5 MG/ML Auto-Injector [Gvoke]	SBD	Branded drug	4	7	View →
2199315	0.2 ML glucagon 5 MG/ML Prefilled Syringe	SCD	Clinical drug	4	7	View →

Load more — page 127 of 278

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.