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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
999613 Sulfacetamide sodium 100 MG/ML / sulfur 50 MG/ML Medicated Liquid Soap SCD Clinical drug 17 32 View →
1357010 Brompheniramine maleate 0.4 MG/ML / dextromethorphan hydrobromide 2 MG/ML / pseudoephedrin... SCD Clinical drug 17 31 View →
200257 Repaglinide 0.5 MG Oral Tablet SCD Clinical drug 17 31 View →
309110 Cephalexin 25 MG/ML Oral Suspension SCD Clinical drug 17 31 View →
308973 Carbamazepine 100 MG Chewable Tablet SCD Clinical drug 17 30 View →
892625 Morphine sulfate 20 MG/ML Oral Solution SCD Clinical drug 17 30 View →
200256 Repaglinide 1 MG Oral Tablet SCD Clinical drug 17 29 View →
283485 Mirtazapine 45 MG Disintegrating Oral Tablet SCD Clinical drug 17 29 View →
314108 Minocycline 75 MG Oral Capsule SCD Clinical drug 17 29 View →
349351 Desonide 0.5 MG/ML Topical Cream SCD Clinical drug 17 29 View →
1358610 Methylprednisolone acetate 40 MG/ML Injectable Suspension SCD Clinical drug 17 27 View →
238920 Betamethasone 0.5 MG/ML Topical Cream SCD Clinical drug 17 27 View →
1006107 Sulfacetamide sodium 100 MG/ML Medicated Liquid Soap SCD Clinical drug 17 26 View →
2003656 Omeprazole 20 MG Disintegrating Oral Tablet SCD Clinical drug 17 26 View →
858733 Ursodiol 500 MG Oral Tablet SCD Clinical drug 17 26 View →
1743855 1 ML methylprednisolone acetate 80 MG/ML Injection SCD Clinical drug 17 25 View →
197860 Leucovorin 10 MG Oral Tablet SCD Clinical drug 17 25 View →
197861 Leucovorin 15 MG Oral Tablet SCD Clinical drug 17 25 View →
308739 Bimatoprost 0.3 MG/ML Ophthalmic Solution SCD Clinical drug 17 25 View →
997491 Fexofenadine hydrochloride 6 MG/ML Oral Suspension SCD Clinical drug 17 25 View →
1358776 {21 (ethinyl estradiol 0.02 MG / norethindrone acetate 1 MG Oral Tablet) } Pack GPCK Generic pack 17 24 View →
1359126 Estradiol 1 MG / norethindrone acetate 0.5 MG Oral Tablet SCD Clinical drug 17 24 View →
1359127 {28 (estradiol 1 MG / norethindrone acetate 0.5 MG Oral Tablet) } Pack GPCK Generic pack 17 24 View →
1658659 1 ML heparin sodium, porcine 1000 UNT/ML Injection SCD Clinical drug 17 24 View →
1668248 50 ML calcium gluconate 100 MG/ML Injection SCD Clinical drug 17 24 View →
197435 Calcium gluconate 100 MG/ML Injectable Solution SCD Clinical drug 17 24 View →
2709673 Acetaminophen 325 MG / dextromethorphan hydrobromide 10 MG Oral Tablet SCD Clinical drug 17 24 View →
310436 Galantamine 4 MG Oral Tablet SCD Clinical drug 17 24 View →
1044465 Zinc pyrithione 5 MG/ML Medicated Shampoo [Head & Shoulders] SBD Branded drug 17 23 View →
1052637 Acetaminophen 500 MG / pamabrom 25 MG / pyrilamine maleate 15 MG Oral Tablet SCD Clinical drug 17 23 View →
1807637 10 ML sodium chloride 9 MG/ML Injection SCD Clinical drug 17 23 View →
2044363 Tolvaptan 60 MG Oral Tablet SCD Clinical drug 17 23 View →
311386 Loxapine 5 MG Oral Capsule SCD Clinical drug 17 23 View →
856656 Dantrolene sodium 25 MG Oral Capsule SCD Clinical drug 17 23 View →
897683 Verapamil hydrochloride 80 MG Oral Tablet SCD Clinical drug 17 23 View →
2677690 Tolnaftate 0.01 MG/MG Medicated Patch SCD Clinical drug 17 22 View →
2715603 Biotin 5 MG/ML / minoxidil 50 MG/ML Topical Spray SCD Clinical drug 17 22 View →
1652639 3 ML insulin lispro 100 UNT/ML Pen Injector SCD Clinical drug 17 21 View →
197383 Atenolol 50 MG / chlorthalidone 25 MG Oral Tablet SCD Clinical drug 17 21 View →
242120 Insulin lispro 100 UNT/ML Injectable Solution SCD Clinical drug 17 21 View →
1923432 Dorzolamide 20 MG/ML / timolol 5 MG/ML Ophthalmic Solution SCD Clinical drug 17 20 View →
308517 20 ML baclofen 0.5 MG/ML Injection SCD Clinical drug 17 20 View →
197382 Atenolol 100 MG / chlorthalidone 25 MG Oral Tablet SCD Clinical drug 17 19 View →
241975 Somatropin 5 MG/ML Injectable Solution SCD Clinical drug 17 19 View →
311502 Menthol 0.02 MG/MG Topical Gel SCD Clinical drug 17 19 View →
318146 Fructose 374 MG/ML / glucose 374 MG/ML / phosphoric acid 4.3 MG/ML Oral Solution SCD Clinical drug 17 19 View →
351179 Sodium chloride 9 MG/ML Nasal Spray SCD Clinical drug 17 19 View →
701961 Camphor 62 MG/ML Inhalation Solution SCD Clinical drug 17 19 View →
998544 Miconazole nitrate 40 MG/ML Vaginal Cream SCD Clinical drug 17 19 View →
1189316 Acetaminophen 500 MG / dextromethorphan hydrobromide 20 MG / phenylephrine hydrochloride 1... SCD Clinical drug 17 18 View →
1535362 Sodium fluoride 0.0272 MG/MG Oral Gel SCD Clinical drug 17 18 View →
199213 Salicylic acid 120 MG/ML Topical Solution SCD Clinical drug 17 18 View →
2123111 NDA020503 200 ACTUAT albuterol 0.09 MG/ACTUAT Metered Dose Inhaler SCD Clinical drug 17 18 View →
253020 Menthol 100 MG/ML Topical Cream SCD Clinical drug 17 18 View →
259581 Glycerin 2 MG/ML / hypromellose 2 MG/ML / polyethylene glycol 400 10 MG/ML Ophthalmic Solu... SCD Clinical drug 17 18 View →
615111 1000 ML glucose 50 MG/ML / potassium chloride 0.04 MEQ/ML / sodium chloride 9 MG/ML Inject... SCD Clinical drug 17 18 View →
705909 Mineral oil 999 MG/ML Oral Solution SCD Clinical drug 17 18 View →
1045456 2 ML eribulin mesylate 0.5 MG/ML Injection SCD Clinical drug 17 17 View →
106315 Benzoyl peroxide 100 MG/ML Topical Cream SCD Clinical drug 17 17 View →
198322 Trifluoperazine 1 MG Oral Tablet SCD Clinical drug 17 17 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.