Last Updated: August 3, 2026

VENTOLIN Drug Patent Profile


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Which patents cover Ventolin, and what generic alternatives are available?

Ventolin is a drug marketed by Glaxosmithkline and is included in seven NDAs.

The generic ingredient in VENTOLIN is albuterol sulfate. There are thirty-eight drug master file entries for this compound. Forty-seven suppliers are listed for this compound. Additional details are available on the albuterol sulfate profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Ventolin

A generic version of VENTOLIN was approved as albuterol sulfate by SUN PHARM INDUSTRIES on December 5th, 1989.

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  • What is the 5 year forecast for VENTOLIN?
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  • What is Average Wholesale Price for VENTOLIN?
Summary for VENTOLIN
US Patents:0
Applicants:1
NDAs:7

US Patents and Regulatory Information for VENTOLIN

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Glaxosmithkline VENTOLIN albuterol AEROSOL, METERED;INHALATION 018473-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Glaxosmithkline VENTOLIN HFA albuterol sulfate AEROSOL, METERED;INHALATION 020983-001 Apr 19, 2001 AB3 RX Yes Yes ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Glaxosmithkline VENTOLIN albuterol sulfate SYRUP;ORAL 019621-001 Jun 10, 1987 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Glaxosmithkline VENTOLIN ROTACAPS albuterol sulfate CAPSULE;INHALATION 019489-001 May 4, 1988 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Glaxosmithkline VENTOLIN albuterol sulfate SOLUTION;INHALATION 019773-001 Apr 23, 1992 DISCN Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Glaxosmithkline VENTOLIN albuterol sulfate SOLUTION;INHALATION 019269-002 Jan 16, 1987 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

International Patents for VENTOLIN

See the table below for patents covering VENTOLIN around the world.

Country Patent Number Title Estimated Expiration
Austria 280996 ⤷  Start Trial
Austria 300763 ⤷  Start Trial
Belgium 704037 ⤷  Start Trial
Belgium 752892 ⤷  Start Trial
Canada 932734 PHENYLAMINOETHANOL DERIVATIVES ⤷  Start Trial
Canada 983524 PHENYLAMINOETHANOL DERIVATIVES ⤷  Start Trial
>Country >Patent Number >Title >Estimated Expiration
Last updated: July 21, 2026

Ventolin (albuterol) investment scenario and fundamentals analysis: patent, exclusivity, FDA status, generic and biosimilar risks

Executive summary: Ventolin (albuterol) is a mature, high-volume respiratory product with broad generic availability. The investment case is driven less by near-term patent tailwinds and more by (1) contract manufacturing and supply execution, (2) demand durability for short-acting beta-agonists (SABAs), (3) mix shifts between CFC-free inhalers and alternative inhalation devices, and (4) whether the specific Ventolin NDA product has any remaining exclusivities or enforcement leverage versus authorized generics and competitors. For most investors, the dominant risk is price compression from established generics and wholesaler contracting dynamics rather than a primary patent barrier.


What patents protect Ventolin (albuterol) and how strong is the patent estate?

Featured snippet answer: Ventolin is an established albuterol brand. Core active-ingredient IP for albuterol is long expired; remaining value typically sits in formulation, device-specific improvements, and method-of-use/therapeutic regimen claims, which are often narrower and fragmented across jurisdictions. For investment purposes, patent strength is usually not a primary driver versus generic substitutes.

Which “Ventolin” products matter for IP (US-facing)

“Ventolin” is used for multiple albuterol presentations in different markets. For an investment-grade patent read-through, the starting point is the exact marketed product (strength, dosage form, device, and NDA/ANDA linkage). In the US, key commercial presentations include:

  • Ventolin HFA (albuterol sulfate inhalation aerosol, typically 90 mcg/actuation)
  • Ventolin older formulations in some markets (including CFC-era or other inhaler formats)
  • Other albuterol products may share brand recognition but differ materially in IP and regulatory status

Because Ventolin is widely generified, the practical question is whether any Ventolin-specific patents still block a direct generic or a “design-around” inhaler route.

How to interpret “patent estate strength” for a mature SABA

For a blockbuster-like inhaler, investors track three layers:

  1. API composition-of-matter (COM): typically expired long ago for albuterol.
  2. Formulation and particle/device engineering: may persist as narrow barriers, especially around propellant, ethanol/wetting agents, valve or actuator design, and emitted-dose specifications.
  3. Method-of-use claims: can be relevant if tied to specific dosing regimens, pediatric use, or inhaler training paradigms, but they are harder to enforce because generics often label-match therapy broadly.

Country-by-country enforcement risk

Albuterol’s basic IP history and commercial footprint mean many jurisdictions have similar expiration timelines for core claims. What changes investment outcomes is whether any residual device/formulation patents remain enforceable in the target market and whether enforcement costs are worth it for the remaining sales pool.


When does Ventolin lose exclusivity and what drives the timeline for generics?

Featured snippet answer: For Ventolin, exclusivity is typically not the main constraint because albuterol products have been in the market for decades and face early generic competition. The “timeline” analysis for investment usually maps to (a) any remaining product-specific regulatory exclusivities and (b) whether new device/formulation variants create late-coming exclusivity windows.

Exclusivity is usually regulatory, not chemical

In US commercial reality, the controlling issue for most mature inhalers is:

  • Whether the branded product has NCE/4-year/3-year exclusivity tied to a particular NDA (often long past for albuterol brands)
  • Whether any 505(b)(2) pathway creates a new reference carve-out (rare for Ventolin legacy)
  • Whether device or formulation changes are supported by new clinical supplements that create new periods

Practical launch window logic

Even if a branded product had a residual IP or regulatory hook, generic entry still hinges on:

  • Bioequivalence requirements for inhalation aerosols
  • Labeling alignment and whether the sponsor can avoid infringing method-of-use claims
  • Manufacturing capability and ability to hit emitted-dose and plume characteristics

What Paragraph IV challenges exist for Ventolin and what litigation affects generic entry risks?

Featured snippet answer: For Ventolin-like albuterol products, generic competition is largely established. New Paragraph IV dynamics are usually incremental and product-specific, tied to specific patents listed for a particular Ventolin presentation rather than to albuterol broadly.

Why Ventolin litigation is often commercially “old news”

SABAs have long generic runway and multiple competitors. That changes investment interpretation:

  • Each new suit or counterclaim tends to have narrow economic impact relative to overall market decline-to-generic.
  • Settlement terms, if they occur, typically matter to a specific generic applicant or a specific device/formulation, not to the entire class.

How investors should map litigation to revenue exposure

For any active case linked to a Ventolin presentation, investors price:

  • Whether an asserted patent is listed in the Orange Book for the exact dosage form and strength
  • Whether the bottleneck is manufacturing/design-around or independent use/label risk
  • The time-to-decision relative to typical inhaler demand cycles

What is the Orange Book status of Ventolin HFA and what patents are listed?

Featured snippet answer: Orange Book status determines which patents can support an NDA holder’s enforcement against ANDAs. For Ventolin, the market typically shows extensive generic presence, consistent with expired core albuterol IP and/or minimal enforceable residual patents on Ventolin-specific product elements.

What investors pull from the Orange Book (and why it matters)

For each Ventolin product, the relevant fields are:

  • NDA number
  • Listed patents with:
    • Patent type (COM, formulation, method of use, device)
    • Expiration date
    • Regulatory exclusivity codes (if any)
  • Whether patents are:
    • Earliest expirations (the ones that matter for first generic launch)
    • Multiple layering (creates staggered entry delay but usually declines in value in mature categories)

Investment relevance of “patent listing density”

High patent listing count does not automatically strengthen enforceability. Investors separate:

  • Listed-but-unenforceable (e.g., irrelevant to ANDA product design)
  • Listed-but-nonblocking (generic design-around avoids claim territory)
  • Truly blocking patents (device/formulation constraints that are hard to replicate)

How strong is Ventolin demand fundamentals and revenue resilience as an investment?

Featured snippet answer: Ventolin demand is typically durable because it treats acute bronchospasm symptoms. The investment issue is not demand destruction; it is margin compression from generic substitution and payer contracting.

Demand driver profile

Albuterol SABAs are used for:

  • Asthma rescue therapy
  • COPD symptom management (where relevant)
  • Emergency management in acute respiratory distress contexts

This yields relatively stable patient-based usage, but reduces pricing power once generics dominate.

What moves unit growth in a SABA market

  • Seasonality: winter peaks and allergy-driven spikes
  • Patient behavior: rescue inhaler usage correlates with exacerbation patterns
  • Form factor shifts: inhaler technique training, switch to or from alternative devices, and device preference programs
  • Payer strategy: preferred drug lists and step therapy

What moves branded revenue down despite stable usage

  • Authorized generics and branded-to-generic substitution
  • Discounting and wholesaler rebates
  • Margin tradeoffs between supply agreements and competitive pricing

What generic entry risks exist for Ventolin HFA?

Featured snippet answer: Generic entry risk is generally ongoing but largely already realized for established albuterol inhalers. The remaining risk is incremental: specific strengths, device variations, distribution formats, or new entrants displacing authorized supply.

Key risk factors investors price

  1. Contracting leverage
    • Large wholesalers and pharmacy chains often switch favored SKUs quickly.
  2. Supply chain bottlenecks
    • Any capacity constraints can create temporary price relief for the surviving manufacturers.
  3. Regulatory defensibility
    • If there are Ventolin-specific formulation/device patents still in force, entry may be slowed for particular variants.
  4. ANDA eligibility and labeling
    • Broad labeling reduces the ability to differentiate product claims.

How does Ventolin compare with alternative albuterol brands and competing inhaled therapies?

Featured snippet answer: Ventolin is a branded SABA reference point, but competitive pressure comes more from (a) generic albuterol inhalers and (b) the broader respiratory therapeutics mix where controller therapies reduce rescue use in some patient segments.

Direct competitor set

  • Generic albuterol inhalers (HFA aerosols and other dose formats)
  • Other SABAs or combination therapies where used (depending on market and country)
  • Controllers (ICS/LABA and other long-term regimens) that can reduce acute rescue needs in some treated patients

Investment implication

Ventolin’s investment case becomes less about therapeutic superiority and more about:

  • supply reliability
  • channel relationships
  • ability to maintain or re-win shelf presence versus authorized generics

What formulations are protected by Ventolin patents (HFA propellant, actuator, particle engineering)?

Featured snippet answer: For mature albuterol brands, remaining formulation or device patents, if any, are typically narrow and tied to emitted-dose consistency, valve/actuator engineering, and propellant system changes rather than the fundamental chemistry of albuterol.

Where residual formulation value usually concentrates

  • Propellant and co-solvent systems
  • Suspension stability and particle size distribution targets (for inhalers that use suspensions)
  • Dose uniformity under actuation
  • Compatibility with valve and actuator components

Design-around feasibility

Many inhaler generics can succeed by:

  • matching labeled delivered dose under compendial test methods
  • using different actuator/valve configurations
  • adjusting formulation to hit performance specs without copying claimed device engineering

What is the biosimilar risk for Ventolin (albuterol)?

Featured snippet answer: Biosimilar risk is not applicable. Ventolin is a small-molecule drug (albuterol), not a biologic. The competitive pathway is generics via ANDA, not biosimilars via BLA.


How do manufacturing/IP barriers affect Ventolin market entry and margins?

Featured snippet answer: Manufacturing and device performance qualification can be the practical entry barriers once patents are weak or expired. For inhalation aerosols, the hardest parts are achieving consistent delivered dose and stable product performance over shelf life.

Manufacturing reality investors model

  • Filling and aerosolization process control
  • Valve-actuator supply chain
  • Quality system maturity and batch consistency
  • Stability testing and regulatory submissions for ANDAs

Margin mechanics

  • Fixed-cost absorption across production runs
  • Defect and yield rates (particularly for device components)
  • Negotiated supply pricing with channel partners

What FDA regulatory milestones and pathway dynamics matter for Ventolin?

Featured snippet answer: The key regulatory milestones for Ventolin investment are ANDA approvals, labeling updates, and any safety communications that change inhaler use patterns. For mature albuterol products, the regulatory pipeline is usually dominated by generic approvals and manufacturing supplement cycles.

What investors track

  • ANDA approvals for inhaler equivalents
  • Labeling and safety updates for SABA use
  • Device-related supplement approvals (for actuator/valve changes)
  • Any regulatory actions that could constrain supply

Who are the dominant players in Ventolin-like albuterol inhaler markets and how does that affect pricing?

Featured snippet answer: Pricing is shaped by a mix of established generic manufacturers and authorized generic strategies. Market pricing typically settles into a “lowest effective contracting price” rather than a brand-premium equilibrium.

Channel dynamics

  • PBM and payer preferred tiers
  • Pharmacy benefit design that accelerates substitution
  • Wholesale inventory practices for inhalers during seasonal spikes

Investment consequence

The most reliable fundamental signal is not product-level IP; it is the competitive price environment in the specific distribution channels and contracted segments where Ventolin sells.


Investment scenario: base case, bull case, bear case for Ventolin

Featured snippet answer: Ventolin investment outcomes are primarily a function of generic price pressure and supply execution, with IP playing a secondary role unless a specific Ventolin presentation has remaining enforceable device/formulation patents.

Base case (most likely for a mature SABA)

  • Continued generic price compression
  • Stable unit demand with reduced branded net pricing
  • Margins dependent on manufacturing cost position and contracting discipline

Bull case

  • Temporary supply constraints among competing generic inhalers
  • Successful defense of narrow Ventolin presentation IP (if any remains enforceable) that delays a particular variant or strength
  • Channel mix improves (higher share of contracted volume, fewer switch-outs)

Bear case

  • Additional generic entrants or authorized generics deepen price competition
  • Safety or guideline changes reduce rescue-only reliance in some managed segments
  • Manufacturing disruptions lift unit costs, causing net pricing to fall faster than cost capture

Key Takeaways

  • Ventolin is a mature small-molecule SABA; the investment case is mainly supply, contracting, and pricing, not chemical innovation.
  • Core albuterol IP is long expired; any remaining value typically comes from narrow Ventolin-specific formulation/device patents that can be design-around.
  • Generic competition risk is largely already priced in through established ANDA availability; incremental entry and contracting dynamics drive near-term returns.
  • Biosimilar risk is not applicable.
  • For financial underwriting, focus on net pricing, channel share, manufacturing cost curve, and any product-specific residual Orange Book leverage for the exact Ventolin presentation.

FAQs

1) What is the FDA approval pathway for generic Ventolin HFA inhalers?
Generic albuterol inhalers typically pursue ANDA pathways under bioequivalence requirements for inhalation aerosols, with device performance specifications and labeling alignment as critical determinants.

2) Can a Ventolin label update affect generic competition speed?
Yes. Labeling changes can alter Paragraph IV strategy, required comparability for equivalence, and manufacturing/validation scope, which can delay or rework ANDA submissions depending on the change type.

3) How do inhaler device differences impact ANDA success for albuterol products?
Actuator/valve design, delivered dose performance, and plume characteristics must meet equivalence criteria. Device engineering can be a practical barrier even when formulation patents are narrow.

4) Is Ventolin’s revenue more sensitive to seasonality or to long-term controller therapy shifts?
Both matter, but for mature SABAs the seasonal demand signal is usually stronger in the near term, while controller adoption affects rescue usage trends over longer horizons.

5) What market event most quickly moves SABA pricing?
Channel contracting decisions and the effective presence (or absence) of low-cost competitors during seasonal peaks typically move pricing faster than incremental regulatory developments.


References

  1. U.S. Food and Drug Administration. Orange Book: Approved Drug Products with Therapeutic Equivalence Evaluations. (Accessed 2026-07-21).
  2. FDA. Applications for FDA Approval to Market a New Drug (ANDA/BLA/NDA regulatory pathways). (Accessed 2026-07-21).
  3. FDA. Guidance for Industry: Bioavailability and Bioequivalence Studies for Inhalation Aerosols. (Accessed 2026-07-21).

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