Last Updated: August 8, 2026

HEMANGEOL Drug Patent Profile


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

Hemangeol is a drug marketed by Eton and is included in one NDA. There are two patents protecting this drug and one Paragraph IV challenge.

This drug has forty-seven patent family members in thirty-one countries.

The generic ingredient in HEMANGEOL is propranolol hydrochloride. There are twenty-two drug master file entries for this compound. Forty suppliers are listed for this compound. Additional details are available on the propranolol hydrochloride profile page.

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Recent Clinical Trials for HEMANGEOL

Identify potential brand extensions & 505(b)(2) entrants

SponsorPhase
Christiana Care Health ServicesPhase 1
Columbia UniversityPhase 2
University of Missouri-ColumbiaEarly Phase 1

See all HEMANGEOL clinical trials

Pharmacology for HEMANGEOL
Paragraph IV (Patent) Challenges for HEMANGEOL
Tradename Dosage Ingredient Strength NDA ANDAs Submitted Submissiondate
HEMANGEOL Oral Solution propranolol hydrochloride 4.28 mg/mL 205410 1 2022-07-21

US Patents and Regulatory Information for HEMANGEOL

HEMANGEOL is protected by two US patents.

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Eton HEMANGEOL propranolol hydrochloride SOLUTION;ORAL 205410-001 Mar 14, 2014 RX Yes Yes ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Eton HEMANGEOL propranolol hydrochloride SOLUTION;ORAL 205410-001 Mar 14, 2014 RX Yes Yes ⤷  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 HEMANGEOL

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

Country Patent Number Title Estimated Expiration
Argentina 068927 ⤷  Start Trial
Austria E512661 ⤷  Start Trial
Australia 2008313405 ⤷  Start Trial
Brazil PI0816536 ⤷  Start Trial
Canada 2701953 ⤷  Start Trial
Chile 2008003083 ⤷  Start Trial
China 102006864 ⤷  Start Trial
>Country >Patent Number >Title >Estimated Expiration
Last updated: July 27, 2026

HEMANGEOL (propranolol oral solution) Market Dynamics and Financial Trajectory: Exclusivity, Competition Risk, Pricing, and Revenue Outlook

HEMANGEOL (propranolol hydrochloride) is an orphan-labeled, pediatrics-focused beta-blocker launched for infantile hemangioma. The commercial trajectory is shaped by (1) a concentrated prescriber base in dermatology and pediatric specialty care, (2) limited formulary penetration in standard pediatric markets, (3) payer and HTA sensitivity to pediatric safety and dosing regimens, and (4) the timing of patent and regulatory exclusivity that governs generic and follow-on entry risk. Competitive pressure is largely “same-ingredient” (generic propranolol) rather than class competitors, with manufacturer strategy centered on brand protection in the orphan segment and on reimbursement durability.


What is HEMANGEOL’s market size exposure and who buys it?

HEMANGEOL’s demand is tied to the diagnosed population of infantile hemangioma requiring systemic therapy. Unlike broad adult indications, the commercial base is constrained by diagnosis rate, severity criteria, and clinician treatment thresholds.

Primary customers and channel economics

  • Who writes prescriptions: pediatric dermatologists, pediatricians, and hemangioma multidisciplinary teams.
  • Who pays: government programs and commercial pediatric pharmacy benefits, with utilization influenced by prior authorization and safety monitoring requirements.
  • How product moves: mostly specialty retail pharmacy and specialty-distribution channels due to pediatric dosing, cold-chain needs in some markets, and dispensing controls.

Demand drivers

  • Clinical guideline adoption for treating function-threatening or cosmetically sensitive infantile hemangioma.
  • Physician adherence to dosing titration schedules and monitoring protocols.
  • Regional reimbursement frameworks that treat pediatric hemangioma as a defined, reimbursable condition versus an out-of-pocket discretionary therapy.

How does HEMANGEOL’s pricing and reimbursement profile shape revenues?

HEMANGEOL pricing operates within pediatric specialty reimbursement constraints. Revenue outcomes depend more on net price realization (after rebates, payer contracts, and distribution terms) than on list price.

Key pricing and access levers

  • Reimbursement coverage durability: orphan-like signaling and pediatric indication specificity can support higher net pricing when payers view the drug as “standard of care” for systemic hemangioma cases.
  • Prior authorization criteria: payer policies that require documentation of lesion characteristics, growth phase, and functional risk increase administrative friction and reduce conversion rates.
  • Substitution pressure: when payers accept generic propranolol for hemangioma, brand economics compress.

Net revenue mechanics that matter

  • Pediatric dosing in mL per kg drives variability in annualized patient therapy cost.
  • Rebates and patient access programs can swing reported revenue even if underlying unit demand is stable.

What product life-cycle factors drive HEMANGEOL’s sales trajectory?

Sales trajectory typically follows a pattern: early uptake as prescribers build confidence, plateau when pediatrics centers of excellence saturate, then decline if generic substitution becomes viable or clinician patterns shift.

Early-stage dynamics (uptake)

  • Conversion depends on:
    • stable safety experience,
    • patient-support infrastructure (titration plans, monitoring guidance),
    • and payer acceptance of indication-specific labeling.

Mid-trajectory dynamics (stabilization)

  • When the indication is accepted, growth tends to track:
    • incident diagnosis rate,
    • and network expansion into more pediatric practices.

Late-stage dynamics (pressure)

  • Brand risk increases if:
    • generic propranolol becomes a common payer substitution,
    • exclusivity barriers weaken,
    • or biosimilar-style “follow-on” analogs emerge via formulation and regimen patents that are not fully enforceable.

When does HEMANGEOL lose exclusivity and what generic entry risks exist?

HEMANGEOL’s generic entry risk is governed by:

  • regulatory exclusivities (if applicable for the specific approval pathway in each jurisdiction),
  • Orange Book-listed patents in the U.S. (if listed for the NDA),
  • and patent estate composition (composition-of-matter vs method-of-use vs formulations, plus enforcement posture).

U.S. exclusivity and patent barriers: how the risk is modeled

For HEMANGEOL, generic risk is typically assessed using:

  • whether the reference product is protected by listed Orange Book patents with enforceable unexpired claims,
  • whether any generic filings can attempt Paragraph IV to listed patents,
  • and whether settlement agreements create “carve-outs” for generic timing.

Generic substitution reality

Even if exclusivity remains, payers can pressure brands via:

  • formulary listing of generic propranolol for “off-label” or under broad beta-blocker therapeutic rationale,
  • and administrative substitution rules.

The actual revenue impact depends on whether payers consider the indication-specific label to be a requirement for coverage.


What patents protect HEMANGEOL and how strong is the patent estate?

HEMANGEOL’s patent estate strength determines whether market share remains defensible against generic propranolol and follow-on formulations. A robust estate usually includes at least one of:

  • composition-of-matter claims tied to propranolol in the hemangioma context,
  • method-of-use claims for dosing regimen and infantile hemangioma treatment,
  • formulation and dosing-device claims for the pediatric oral solution,
  • manufacturing method claims supporting stability, shelf-life, and dosing accuracy.

Estate scoring framework used by investors and litigators

  • Claim scope: whether patents cover broad dosing regimens or narrow patient subgroups.
  • Unexpired term: years remaining across the highest-impact claims.
  • Enforceability: any weakened posture from earlier litigation or licensing.
  • Design-around potential: whether generics can change formulation or dosing to avoid infringement.

How does HEMANGEOL compare with generic propranolol for infantile hemangioma?

The competitive set is primarily propranolol oral solution and propranolol tablets from generic manufacturers, not other beta blockers.

Clinical and operational differentiators that influence payer choice

  • Pediatric dosing precision and formulation stability (liquid concentration, dosing increments, shelf-life).
  • Titration schedule compliance support (practicality for clinicians and caregivers).
  • Safety monitoring workflows tied to label language.

What drives substitution

  • If payers and clinicians accept generic propranolol for hemangioma treatment pathways, brand share can erode quickly.
  • If payers require label-specific criteria, HEMANGEOL retains access durability even in the presence of generics.

What formulation patents could block follow-on oral solution competition?

Oral pediatric solutions face an IP pathway distinct from tablet or capsule forms. Formulation patents typically focus on:

  • concentration ranges,
  • excipient systems for stability,
  • pH, viscosity, and solubility tuning,
  • and manufacturing methods to achieve consistent dosing.

What “follow-on” strategies look like

A follow-on can avoid certain patents by:

  • changing the formulation but preserving active ingredient,
  • adjusting concentration or excipients,
  • or altering manufacturing steps without changing therapeutic use.

Whether those strategies succeed depends on how broadly formulation claims are drafted and how they are interpreted by courts.


What method-of-use patents matter for HEMANGEOL in litigation scenarios?

Method-of-use patents are central to infantile hemangioma treatment because regimens are operationally defined: dosing initiation, titration, monitoring steps, and treatment duration.

Why method-of-use claims matter commercially

  • If the generic product is the same active ingredient, a method-of-use claim can still block “label-concordant” sales.
  • If generic launch is feasible but off-label use is accepted, brand economics may still face pressure.

Litigation and enforcement posture

Method-of-use claims typically drive:

  • infringement disputes around dosing instructions,
  • settlement agreements that govern when a generic can market “for the indication,”
  • and labeling carve-outs that reduce brand erosion.

What patent litigation affects HEMANGEOL and what settlement terms drive launch timing?

Generic entry timing in the U.S. is often shaped by:

  • Paragraph IV filings against listed patents,
  • district court outcomes,
  • and settlement agreements that delay generic launch or limit specific labeling.

How settlement terms show up in market reality

  • A delayed launch impacts unit growth for the brand during the delay window.
  • A labeling carve-out can preserve brand demand if payers require label-specific coverage.

Financial impact of litigation delays

Litigation delays tend to:

  • extend premium net price realization,
  • sustain formulary positioning,
  • and reduce competitive conversion in pediatric specialty networks.

What is the Orange Book status of HEMANGEOL?

Orange Book listings determine:

  • which patents are tied to the NDA,
  • whether Paragraph IV challenges are possible,
  • and the expected timing of generic “effective date” launches.

How Orange Book status connects to revenue

  • More listed patents covering broader claims generally increase delay risk for challengers.
  • Fewer listed patents or narrow claims reduce practical protection and increase generic substitution likelihood.

What is the FDA regulatory status of HEMANGEOL and does it affect competition?

Regulatory status affects competition via:

  • exclusivity periods,
  • label specificity,
  • and postmarketing commitments that affect how quickly generics can match product performance.

Pathway implications for generics

  • If the reference product is tied to specific labeling and pediatric requirements, generic substitution can be slowed by:
    • additional requirements around bioavailability or formulation comparability,
    • and label negotiations.

Which companies are most exposed to HEMANGEOL’s revenue overhang?

Revenue exposure concentrates among:

  • the brand’s marketing authorization holder and local subsidiaries,
  • specialty pharmacy networks dispensing infantile hemangioma systemic therapy,
  • and generic entrants holding approved propranolol equivalents for rapid conversion.

Investor lens on exposure

  • Companies with strong pediatric or dermatology distribution can capture share quickly post-entry.
  • Brand holders with robust payer contracting can defend net price longer even after generic availability.

What commercial KPIs most directly track HEMANGEOL’s financial trajectory?

For a pediatric systemic orphan product, the monitoring toolkit typically includes:

  • patient starts (new systemic therapy initiations),
  • persistence through treatment duration,
  • net price per mL and annualized therapy cost per patient,
  • formulary share and prior authorization win rates,
  • dispensing channel mix and days of supply.

Forecast sensitivities

  • Diagnosis and severity mix changes alter eligible patient counts.
  • Reimbursement changes shift capture rates even if the clinical incidence is stable.

What are the key risks and upside scenarios for HEMANGEOL revenue?

Primary downside

  • Generic propranolol substitution accepted for infantile hemangioma reimbursement.
  • Loss of label-based payer coverage tied to exclusivity weakening.
  • Litigation outcomes that accelerate generic entry or reduce enforceable scope.

Primary upside

  • Strong payer adherence to label criteria and continued systemic therapy guideline uptake.
  • A patent estate that blocks label-concordant generic launch.
  • Maintenance of premium net price supported by pediatric formulation and dosing reliability.

Key Takeaways

  • HEMANGEOL’s market dynamics are driven by a limited, pediatric specialty-therapy population and payer sensitivity to label-specific coverage and monitoring requirements.
  • Financial trajectory depends on net price realization, persistence through treatment duration, and whether payer systems accept generic propranolol substitution for infantile hemangioma.
  • The most material competitive threat is “same-ingredient” propranolol entry and labeling carve-outs, governed by patent and Orange Book barriers in the U.S. and corresponding patent/regulatory systems in other markets.
  • Patent estate strength and litigation outcomes determine the length of premium pricing and formulary defensibility.

FAQs

1) What determines whether generic propranolol will substitute for HEMANGEOL in infantile hemangioma?
Coverage rules, prior authorization criteria, and whether payers require label-concordant treatment steps.

2) How do method-of-use claims influence the commercial impact of generic competition?
They can delay or limit “label-indication” marketing, even when the active ingredient is the same.

3) What formulary and payer signals predict faster erosion of HEMANGEOL share?
Broad formulary inclusion of generics and payer policy acceptance of off-label or non-label-concordant systemic therapy.

4) Why is pediatric dosing and stability formulation IP commercially important for HEMANGEOL?
It affects both infringement exposure and the practical substitutability of the oral solution.

5) What litigation outcomes most affect HEMANGEOL revenue?
Settlements and court rulings that accelerate label-concordant generic launches or narrow enforceable claim scope.


References (APA)

  1. FDA Orange Book: Approved Drug Products with Therapeutic Equivalence Evaluations. U.S. Food and Drug Administration. https://www.accessdata.fda.gov/scripts/cder/daf/
  2. FDA Drug Approval Package for HEMANGEOL (propranolol hydrochloride). U.S. Food and Drug Administration. https://www.accessdata.fda.gov/scripts/cder/daf/
  3. FDA Purple Book: Lists of Licensed Biological Products, Effective Licenses, and Biosimilarity and Interchangeability Evaluations. U.S. Food and Drug Administration. https://purplebooksearch.fda.gov/

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