Powered by RuleoDeveloped with one of the country's leading experts on regulatory IP

FDA's Orange Book,
enhanced by artificial intelligence.

Approved Drug Products with Therapeutic Equivalence Evaluations is the authoritative record of approved drugs and their patent and exclusivity information. It is also current-state only, overwritten daily, and split across a dozen PDFs and static lists. Orange-Book.ai keeps every version, links every field, and lets you ask it questions.

Daily
cumulative change capture
1980 →
annual editions and supplements
One
dashboard over every list
Split-screen
verification against the PDF

Where things stand

The Orange Book is authoritative. It is not built for the way you actually use it.

Nothing below is a criticism of FDA. The publication does exactly what it was designed to do. The problem is that regulatory, IP, and portfolio work depends on history, correlation, and change — and none of that is what the Orange Book was built to deliver.

The hard copy

Annual editions and monthly supplements

  • A new Annual Edition each year, with Cumulative Supplements published monthly.
  • Supplements show changes since the previous Annual Edition — added patents, delisted patents, patent codes, exclusivity codes.
  • No interim update between supplements. If something changed on the 3rd, you find out next month.
  • The Annual Edition strips out the Newly Added and Delisted designations entirely.

The electronic Orange Book

Current data only, overwritten daily

  • Search by active ingredient, proprietary name, applicant, application number, dosage form, route, or patent number.
  • Single-term searching with limited sub-group searching. Export to CSV, Excel, or print.
  • Shows only what is true today — yesterday's state is gone. No history, no diff.
  • The monthly Newly Added Patents screen is purged once the next Cumulative Supplement publishes.

Everything around it

A dozen separate lists and PDFs

  • Preface, Appendix A (Product Name Index), Appendix B (by Applicant), Appendix C (Uniform Terms).
  • Patent Use Codes, Exclusivity Codes, Patent Listing Dispute List, Additions/Deletions lists.
  • Reference Listed Drugs by ANDA Reference Standard, PANDA list, ANDA Paragraph IV Certifications.
  • Orphan Drug Exclusivity designations and approved indications, Pediatric Exclusivity — all held elsewhere.

And the patent listings themselves carry caveats

Patent information is published on or after the submission date defined in 21 CFR 314.53(d)(5). Listings published before 18 August 2003 identify only method-of-use claims, and may include drug substance or drug product claims that the listing never shows. Since 5 December 2016, an NDA holder submitting a patent that claims both the drug substance and the drug product need only specify one. FDA is explicit: an Orange Book listing cannot be relied on to determine the range of claims an NDA holder or patent owner may assert. Knowing when each listing appeared, and in what form, is the only way to read it properly.

Current options

What's available today, and where each one stops.

FDA, direct

Free

The official source. Authoritative, and deliberately minimal — current-state search plus a stack of PDFs and static lists.

Where it stops

  • No history
  • No cross-field search
  • No change tracking
  • No alerts

Consolidated companions

≈ $295 / year

Collapse duplicate strength entries into single tables, hyperlink out to patent text and FDA records, and publish a monthly “What’s New” summary with a historical archive of expired patents.

Where it stops

  • Monthly cadence, not daily
  • Archive ends before current year
  • No AI query layer
  • Limited field search

Patent intelligence platforms

$8,000 – $24,000 / year

Broad drug-patent suites: litigation dockets and complaints, generic entry screening, patents across 130+ countries, sales and reimbursement data, AI research assistants, automated reports.

Where it stops

  • Priced for portfolio teams, not day-to-day regulatory work
  • Orange Book is one input among many, not the object of the product
  • Little fidelity to the published document itself

What we're building

Three things, in this order: the document, the presentation, the function.

01

An enhanced Orange Book

The published document, made navigable. Active table of contents, section search, integrated links from NDA number, product number, patent number, and exclusivity code straight through to the underlying record.

02

Advanced presentation

Split-screen product list against patent and exclusivity list. A single dashboard over data that currently lives in a dozen places. Verify any answer against the PDF, side by side, without leaving the page.

03

Improved function

Search across every annual edition and supplement at once. Cross-field and cross-product queries. A daily cumulative database that turns “what changed, and when” into a question you can actually ask.

Roadmap

Built in phases, each one useful on its own.

Ordered by dependency rather than by date. Every phase ships something you can use before the next one starts.

  1. Phase 1

    Enhanced PDF format

    The Orange Book as it is published, but usable.

    • Active table of contents navigation
    • Section search within the document
    • Split-screen display: product list alongside patent and exclusivity list
    • Integrated links — NDA, product number, exclusivity code, patent
    • Direct link through to FDA’s PDF Orange Book archive
  2. Phase 2

    Cumulative database updates

    A database that accumulates instead of overwriting.

    • Monthly cumulative update
    • Daily cumulative update
  3. Phase 3

    Cumulative PDF display

    Current and historical state, both rendered as the document.

    • Current data, refreshed daily
    • Archive data, rolled up monthly
  4. Phase 4

    Search across annual editions and supplements

    One query, every edition — not one edition at a time.

    • OCR search across scanned historical editions
    • Field search: active ingredient, product description, approval dates, patent, sponsor, patent codes (substance / product / use), use code language, exclusivity code, expiration date
    • Cross-field searching
    • Cross-product searching
    • Saved search results
  5. Phase 5

    Unified dashboard

    Single-surface navigation with PDF verification built in.

    • Split-screen verification against the source PDF
    • NDA number → most recent Orange Book data, prescribing information, approval package
    • Patent number → patent PDF
    • Exclusivity code → definition and expiration date
    • Use code number → use code language
    • Therapeutic equivalence code definitions, including historical changes
    • Direct navigation to preface, product list, patent and exclusivity information, OTC list, discontinued list, orphan designations
    • Stand-alone reference: Drugs@FDA, USPTO, use code list, appendices, dispute list, RLD/RS list, PANDA, Paragraph IV certifications
  6. Phase 6

    Daily-Difference™

    A daily email on what moved — and a searchable record of every move.

    • Day-to-day changes in products, patents (listing, delisting, expiration), patent codes, exclusivity codes
    • Every difference written into its own searchable database
    • New class of query: when did a given change actually occur?
  7. Phase 7

    Custom alerts

    Your watchlist, evaluated against the daily diff.

    • Active ingredient
    • Trade name
    • Patent number
    • Sponsor
    • Other parameters on request
  8. Phase 8

    Portfolio reporting

    Fee-based reports generated off the same data.

    • Basic portfolio report
    • Enhanced portfolio report with active links — fixed or continuously updated
    • Custom portfolio reports
  9. Phase 9

    User engagement

    The people who use it shape it.

    • Report data errors and functional errors in-product
    • Voluntary beta testing
    • User Advisory Board

Sample queries

Questions you cannot ask the Orange Book today.

Each of these currently means opening several PDFs, reconciling them by hand, and hoping nothing changed in between. These are the queries Orange-Book.ai is designed to answer directly.

When did Product X first appear in the Orange Book?
When did Patent Y first get listed for a product?
When did Product X move to the Discontinued List?
List every drug for which Patent X is, or was, listed.
Are there AB-rated generics approved for [trade name / active ingredient]?
Have any ANDAs with Paragraph IV certifications been filed for generic versions of [trade name]?
When is the last-to-expire regulatory exclusivity or patent for [trade name]?
Among products A, B, and C, which has the earliest-to-expire regulatory and patent exclusivity?
What is the reference listed drug / reference standard for this active ingredient?
Show all current and expired patents for any approved product on the active or discontinued list.
Which products share an identical use code? Which share a similar one?
What changed in the Orange Book preface, and when?
Show Orange Book listings across an entire product class.
Which products carry a given therapeutic equivalence rating?
What changed in the listed patents for this product?

Access and pricing

To be determined — and we'd rather set it with you than at you.

Free tier

Pricing TBD

Open access to a limited set of features, so you can see the document handling and search before you pay for anything.

Subscription

Pricing TBD

Full access: cumulative database, cross-edition search, the dashboard, Daily-Difference™, and custom alerts.

Research & consulting

Pricing TBD

Expert analysis on top of the platform — listing accuracy, loss-of-exclusivity estimates, portfolio reports, scenario modelling. Priced by task, by monitoring scope, or by project.

Waiting list members get first say on packaging and price points before anything is published.

Beyond the roadmap

Where this goes once the foundation is in place.

Future capabilities

  • FDA Form 3542 searching
  • Sub-links through to progressively more detailed records
  • Circular links — use any linked value as the next search term
  • Labeling: prescribing information, NDC number, approval package
  • Enhanced patent listing disputes: substance of the challenge, the response, the outcome
  • Links to patent file histories, dispute allegations and responses, pediatric exclusivity, RLD/RS list, PANDA list

Future queries

  • What changed in the label?
  • Which changes in patents correlate with changes in the label?
  • Which patents are affected by pediatric exclusivity?
  • Compare a given label section across several products.
  • Analyse use codes across a class.
  • Analyse exclusivity codes across a class.

The same approach, applied elsewhere

Green-Book.ai for approved animal drug products, and Purple-Book.ai for licensed biological products with reference product exclusivity and biosimilarity evaluations. Both are planned, with features analogous to Orange-Book.ai.

Early access

Join the waiting list.

Orange-Book.ai is in development. Tell us who you are and what you need it to answer, and we'll bring you in as capability lands.

  • First access as each phase ships
  • Input on pricing and packaging before it is set
  • Priority for beta testing and the User Advisory Board

No spam. We'll only contact you about Orange-Book.ai availability.

Orange-Book.ai

FDA's Orange Book, enhanced by artificial intelligence. Powered by Ruleo, and developed in collaboration with one of the country's leading experts on regulatory intellectual property.

Approved Drug Products with Therapeutic Equivalence Evaluations (the “Orange Book”) is a publication of the U.S. Food and Drug Administration. Orange-Book.ai is an independent product and is not affiliated with, endorsed by, or sponsored by the FDA. Nothing on this page is legal advice.

© 2026 Ruleo, Inc. Orange-Book.ai™, Green-Book.ai™, Purple-Book.ai™ and Daily-Difference™ are trademarks of Ruleo, Inc.

Orange-Book.ai | FDA's Orange Book Enhanced by Artificial Intelligence