Last Updated: August 9, 2026

Halobetasol propionate - Generic Drug Details


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What are the generic sources for halobetasol propionate and what is the scope of freedom to operate?

Halobetasol propionate is the generic ingredient in six branded drugs marketed by Padagis Israel, Mayne Pharma, Cosette Pharms Nc, Fougera Pharms, Sun Pharma Canada, Sun Pharm Inds Inc, Bausch, Lacer Pharma, Encube, and Quagen, and is included in twenty NDAs. There are thirteen patents protecting this compound. Additional information is available in the individual branded drug profile pages.

Halobetasol propionate has seventy-seven patent family members in twenty-seven countries.

There are nine drug master file entries for halobetasol propionate. Nine suppliers are listed for this compound. There is one tentative approval for this compound.

Drug Prices for halobetasol propionate

See drug prices for halobetasol propionate

Recent Clinical Trials for halobetasol propionate

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

SponsorPhase
Dermatology Consulting Services, PLLCPhase 4
Icahn School of Medicine at Mount SinaiPhase 3
Citius Pharmaceuticals, Inc.Phase 2

See all halobetasol propionate clinical trials

Generic filers with tentative approvals for HALOBETASOL PROPIONATE
Applicant Application No. Strength Dosage Form
⤷  Start Trial⤷  Start TrialUNKNOWNUNKNOWN

The 'tentative' approval signifies that the product meets all FDA standards for marketing, and, but for the patents / regulatory protections, it would approved.

Pharmacology for halobetasol propionate
Paragraph IV (Patent) Challenges for HALOBETASOL PROPIONATE
Tradename Dosage Ingredient Strength NDA ANDAs Submitted Submissiondate
LEXETTE Topical Foam halobetasol propionate 0.05% 210566 1 2021-01-28
BRYHALI Lotion halobetasol propionate 0.01% 209355 1 2019-05-15
ULTRAVATE Lotion halobetasol propionate 0.05% 208183 1 2018-01-24

US Patents and Regulatory Information for halobetasol propionate

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Bausch BRYHALI halobetasol propionate LOTION;TOPICAL 209355-001 Nov 6, 2018 RX Yes Yes 11,957,753 ⤷  Start Trial Y ⤷  Start Trial
Padagis Israel HALOBETASOL PROPIONATE halobetasol propionate LOTION;TOPICAL 211464-001 Jun 3, 2020 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Bausch BRYHALI halobetasol propionate LOTION;TOPICAL 209355-001 Nov 6, 2018 RX Yes Yes 11,986,527 ⤷  Start Trial ⤷  Start Trial
Padagis Israel HALOBETASOL PROPIONATE halobetasol propionate CREAM;TOPICAL 077123-001 Dec 16, 2004 AB RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Padagis Israel HALOBETASOL PROPIONATE halobetasol propionate AEROSOL, FOAM;TOPICAL 215266-001 Aug 11, 2023 RX No Yes ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Bausch DUOBRII halobetasol propionate; tazarotene LOTION;TOPICAL 209354-001 Apr 25, 2019 AB RX Yes Yes 11,679,115 ⤷  Start Trial Y ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

Expired US Patents for halobetasol propionate

Applicant Tradename Generic Name Dosage NDA Approval Date Patent No. Patent Expiration
Sun Pharm Inds Inc ULTRAVATE halobetasol propionate CREAM;TOPICAL 019967-001 Dec 27, 1990 4,619,921 ⤷  Start Trial
Bausch BRYHALI halobetasol propionate LOTION;TOPICAL 209355-001 Nov 6, 2018 6,517,847 ⤷  Start Trial
Sun Pharm Inds Inc ULTRAVATE halobetasol propionate OINTMENT;TOPICAL 019968-001 Dec 17, 1990 4,619,921 ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >Patent No. >Patent Expiration
Last updated: July 31, 2026

Halobetasol propionate is a mature, low-cost topical corticosteroid whose commercial value has shifted from the active ingredient to differentiated formulations, prescription access, and branded dermatology portfolios. Generic creams and ointments create price pressure, while foam, lotion, and combination products support higher reimbursement and brand economics. The largest commercial risks are generic substitution, limited product-level disclosure, payer controls, and the absence of meaningful composition-of-matter protection.

Halobetasol Propionate Market Dynamics and Financial Trajectory

What is the commercial market for halobetasol propionate?

Halobetasol propionate is a super-high-potency topical corticosteroid used for short-term treatment of inflammatory and pruritic corticosteroid-responsive dermatoses. The U.S. market includes generic halobetasol propionate creams, ointments, and lotions, as well as branded products with differentiated vehicles or combination ingredients.

The primary commercial segments are:

Segment Representative products Commercial position
Generic cream and ointment Halobetasol propionate 0.05% cream or ointment Lowest-cost, substitution-driven segment
Generic lotion Halobetasol propionate 0.05% lotion More limited than cream and ointment
Foam Lexette Vehicle differentiation and patient convenience
Lotion Bryhali Low-potency, once-daily positioning relative to conventional super-potent products
Combination lotion Duobrii, halobetasol propionate/tazarotene Premium branded product combining corticosteroid and retinoid therapy
Legacy branded products Ultravate and related presentations Historically important, but exposed to generic competition

The active pharmaceutical ingredient is mature. Commercial differentiation depends mainly on delivery system, tolerability, dosing frequency, combination therapy, distribution, and payer positioning.

How large is the halobetasol propionate market?

No major manufacturer reports halobetasol propionate revenue as a separate financial line. Public companies generally include the product within broader dermatology, prescription pharmaceutical, or specialty-product revenue categories.

The market should therefore be assessed through prescription volume, product-level claims data, wholesale acquisition price, reimbursement, and company disclosures rather than through a single reported market-size figure.

The economic structure is clear:

  1. Generic cream and ointment volume is high relative to branded product volume.
  2. Generic net prices are constrained by multiple approved suppliers.
  3. Branded products can generate higher revenue per prescription but face lower volume and payer restrictions.
  4. Combination products have greater revenue potential per prescription but also higher clinical, reimbursement, and substitution barriers.
  5. Promotional economics are concentrated in branded dermatology companies rather than API manufacturers.

IQVIA, Symphony Health, Komodo Health, and similar commercial datasets are typically required to estimate prescription volume and net sales. FDA approval records and corporate filings establish the product and regulatory landscape but do not provide a complete market-revenue figure.

Which companies sell halobetasol propionate products?

The competitive landscape includes generic manufacturers, branded dermatology companies, and portfolio owners that commercialize products through licensing or specialty-pharmacy channels.

Company or portfolio Product Formulation Strategic role
Sun Pharmaceutical Industries Ultravate and generic dermatology products Cream, ointment, lotion and generic equivalents Large dermatology platform with historical Ultravate ownership
Mayne Pharma Lexette 0.05% topical foam Vehicle-based branded differentiation
Ortho Dermatologics, part of Bausch Health Bryhali 0.01% lotion Lower-strength lotion with once-daily positioning
Ortho Dermatologics, part of Bausch Health Duobrii Halobetasol propionate 0.01% and tazarotene 0.045% lotion Combination product for plaque psoriasis
Multiple generic manufacturers Halobetasol propionate Cream, ointment, lotion and other approved forms Price competition and pharmacy substitution

The ownership and commercialization arrangements for branded products can change through licensing, portfolio transfers, or corporate transactions. Product-level revenue is generally not separately disclosed.

What FDA products contain halobetasol propionate?

The FDA-approved product landscape includes both single-ingredient and combination products.

Single-ingredient products

Halobetasol propionate 0.05% is commonly supplied as a cream or ointment. The conventional labeled use is short-term topical treatment, generally limited to a defined duration and maximum weekly quantity because of the risks associated with super-high-potency corticosteroids.

Lexette contains halobetasol propionate 0.05% in a foam vehicle. The foam format is intended to improve application to hair-bearing or difficult-to-treat areas and supports a branded differentiation strategy.

Bryhali contains halobetasol propionate 0.01% lotion. Its lower concentration and lotion vehicle distinguish it from conventional 0.05% cream and ointment products. The product was developed to provide longer-duration use under its approved labeling than conventional super-potent halobetasol products.

Combination product

Duobrii combines halobetasol propionate 0.01% with tazarotene 0.045% in a lotion. It is approved for topical treatment of plaque psoriasis in adults. Its commercial value is based on combination therapy, branded packaging, clinical positioning, and product-specific intellectual property rather than on halobetasol propionate alone.

When does halobetasol propionate lose exclusivity?

The active ingredient has long since lost meaningful composition-of-matter exclusivity. Generic competition has existed for conventional halobetasol propionate dosage forms for years.

Exclusivity differs by product:

Product type Main exclusivity exposure Current commercial implication
Conventional halobetasol cream and ointment Expired ingredient and formulation protection; ANDA competition High generic substitution
Foam products Product-specific formulation patents, regulatory exclusivity and potential non-infringement positions Brand protection depends on patent scope and listing status
Lower-strength lotion Formulation, method-of-use and regulatory exclusivity claims Greater differentiation but limited market size
Halobetasol/tazarotene combination Combination patents, formulation patents and method-of-use claims Higher barrier than single-ingredient generic products

FDA regulatory exclusivity and patent exclusivity are separate. A product may have an issued patent without blocking approval of every competing product, and regulatory exclusivity does not necessarily prevent all forms of competition. FDA Orange Book listings, approved labeling, patent expiration dates, and litigation records must be reviewed together. The FDA Orange Book is the controlling public source for patents listed against approved drugs and their associated exclusivity information (FDA, 2024a).

What patents protect halobetasol propionate products?

The strongest remaining protection generally concerns the formulation, concentration, delivery vehicle, treatment regimen, or combination of active ingredients.

Formulation patents

Formulation patents may cover:

  • Foam compositions containing halobetasol propionate
  • Aerosol delivery systems and propellant combinations
  • Lotion vehicles with defined emulsion or solvent systems
  • Particle size, crystallinity, or dispersion characteristics
  • Stabilizers, penetration enhancers, and excipients
  • Combination lotions containing halobetasol propionate and tazarotene

These patents can create a barrier to an identical generic formulation. They do not necessarily prevent approval of a materially different formulation with the same active ingredient.

Method-of-use patents

Method-of-use claims can address:

  • Treatment of plaque psoriasis
  • Once-daily administration
  • Treatment of specified body sites
  • Longer-duration treatment regimens
  • Use in patients who require a particular vehicle
  • Sequencing or combination therapy with tazarotene

Method-of-use protection is often narrower than product protection. Generic applicants may seek approval with a label that omits patented indications or dosing instructions through a section viii statement, where permitted.

Combination-product patents

Duobrii has a stronger patent strategy than a generic halobetasol product because its protection can cover the combination of halobetasol propionate and tazarotene, the specific concentration ratio, the lotion vehicle, and the use of the combination for plaque psoriasis.

The commercial relevance of combination patents depends on whether a challenger seeks to copy the combination, markets a single-ingredient alternative, or uses a different formulation and label.

What is the Orange Book status of halobetasol propionate?

Conventional halobetasol propionate cream and ointment products are established generic products with substantial ANDA competition. Their commercial exposure is therefore materially greater than that of newer branded foam, lotion, and combination products.

Orange Book analysis should distinguish:

Orange Book question Commercial meaning
Is the product listed as reference listed drug? Determines the reference product for an ANDA
Are patents listed? Indicates potential patent-certification and litigation issues
What is the patent expiration date? Helps estimate the earliest potential ANDA launch
Is pediatric exclusivity attached? Can extend relevant patent or exclusivity periods
Are use codes narrow or broad? Affects the scope of a method-of-use challenge
Are multiple strengths or dosage forms listed? Determines whether competitors can target a specific presentation

For legacy products, the main commercial constraint is usually generic substitution rather than a pending Orange Book patent dispute. For newer formulations, Orange Book records can materially affect the timing and cost of generic entry.

Which companies are challenging halobetasol propionate patents?

Generic companies have the strongest incentive to challenge branded products with sufficient prescription volume and price premium. The likely targets are differentiated formulations rather than standard generic cream and ointment products.

Potential challenger categories include:

  • Large generic manufacturers with dermatology portfolios
  • Contract development and manufacturing organizations pursuing ANDA assets
  • Specialty-generic companies targeting topical products
  • Companies seeking authorized-generic or licensed supply arrangements

Publicly identifiable Paragraph IV activity must be tied to a specific reference listed drug, patent number, ANDA applicant, and court docket. A general statement that a company markets generic halobetasol propionate does not establish that it challenged a particular branded formulation under Paragraph IV.

For standard halobetasol cream and ointment, the competitive process is mature. For foam, lotion, and combination products, litigation risk depends on the patent listings and the certifications filed by each ANDA applicant.

What patent litigation affects halobetasol propionate?

Patent litigation risk is concentrated in differentiated products.

Lexette

Lexette's competitive risk is linked to the protection of its foam formulation and any listed patents covering the vehicle, aerosol system, or method of use. A generic foam could challenge the product through Paragraph IV certifications or could launch after patent expiry, settlement, licensing, or a finding of non-infringement.

Bryhali

Bryhali's protection is more likely to involve its lower-strength lotion, vehicle, treatment duration, and labeling strategy than the underlying active ingredient. Generic risk can arise from an identical lotion, a different lotion with the same concentration, or a conventional halobetasol product competing for the same patients.

Duobrii

Duobrii faces the most complex intellectual-property analysis because it combines two active ingredients. Litigation could involve:

  • The halobetasol/tazarotene combination
  • Concentration and ratio claims
  • Lotion formulation
  • Treatment of plaque psoriasis
  • Manufacturing and stability specifications

An ANDA applicant may challenge only selected patents while accepting others, or may pursue a label that omits a protected use. The practical launch date depends on the litigation outcome, settlement terms, and any agreed-upon entry date.

How strong is the halobetasol propionate patent estate?

The estate is weak for the active ingredient and conventional dosage forms but stronger for newer delivery systems and combinations.

Asset Patent strength Generic-entry risk
Halobetasol propionate molecule Low; mature active ingredient High
0.05% cream Low to moderate, depending on formulation claims High
0.05% ointment Low to moderate High
0.05% foam Moderate to strong if formulation claims are narrow and enforceable Moderate
0.01% lotion Moderate Moderate
Halobetasol/tazarotene lotion Moderate to strong Lower before key patent expirations; higher afterward
Method-of-use claims Variable and often narrow Moderate to high
Manufacturing claims Potentially strong for a specific process, but less likely to block all market entry Product-specific

Patent strength depends on claim breadth, written-description support, prosecution history, obviousness risk, enablement, prior art, and the availability of non-infringing alternative formulations. Topical products often generate formulation disputes because small changes in excipients, vehicle structure, or manufacturing process can affect infringement analysis.

What generic entry risks exist for halobetasol propionate?

Generic entry risk differs sharply by formulation.

Conventional products

Generic cream and ointment products have high entry risk because:

  • The active ingredient is off patent.
  • The formulations are familiar to generic manufacturers.
  • Pharmacy substitution is established.
  • Payers generally prefer low-cost versions.
  • Multiple approved suppliers can compete on price.

Branded foam and lotion products

The risk is moderate because branded formulations may retain formulation or method-of-use protection. The protection can weaken if:

  • Claims are narrow.
  • A generic uses a different vehicle.
  • The generic label omits protected indications.
  • The branded product has low prescription volume.
  • Reimbursement does not support a material price premium.
  • Patent litigation costs exceed expected market returns.

Combination product

Duobrii has lower immediate substitution risk than single-ingredient products because an ANDA challenger must address both the combination and the relevant formulation and labeling requirements. Its risk increases as patents expire, as generic companies gain confidence in topical combination development, and as payers seek lower-cost psoriasis treatments.

How does halobetasol propionate compare with competing topical corticosteroids?

Halobetasol competes within a broad topical corticosteroid market that includes clobetasol propionate, betamethasone dipropionate, fluocinonide, and other high-potency agents.

Product Relative potency Commercial difference
Halobetasol propionate Super-high potency Mature generic base with differentiated branded vehicles
Clobetasol propionate Super-high potency Large generic and branded market; strong prescriber familiarity
Betamethasone dipropionate High to super-high, depending on formulation Broad formulation and combination competition
Fluocinonide High potency Established generic use and multiple dosage forms
Tazarotene Retinoid Combination partner in Duobrii; different mechanism and tolerability profile

Halobetasol does not have a durable molecule-level advantage over these agents. Its commercial differentiation comes from vehicle design, approved concentration, treatment duration, convenience, and combination therapy.

What licensing deals and commercial partnerships affect the market?

Branded topical products are often developed, licensed, or commercialized through specialty-dermatology partnerships. The economic value of a deal depends on:

  • Upfront and milestone payments
  • Territory rights
  • Manufacturing responsibility
  • Specialty-pharmacy distribution
  • Co-pay support obligations
  • Minimum purchase commitments
  • Royalty rates
  • Rights to improvements and follow-on formulations

Product ownership should not be inferred from the company named on a prescription label. The NDA holder, patent owner, marketer, distributor, and manufacturer may be different entities.

For halobetasol, licensing economics are more relevant to branded foam, lotion, and combination assets than to generic cream and ointment products. Generic supply agreements generally compete on manufacturing cost, reliability, regulatory compliance, and pharmacy access rather than brand promotion.

What is the FDA regulatory status of halobetasol propionate?

Halobetasol propionate has established FDA approval as a topical corticosteroid. FDA-approved products include conventional single-ingredient products and newer branded dosage forms. Duobrii is approved as a topical combination product for plaque psoriasis, while Lexette and Bryhali represent differentiated single-ingredient formulations (FDA, 2018a, 2018b, 2019).

The regulatory barriers for a new generic depend on the dosage form:

  • Cream and ointment products generally follow an ANDA pathway.
  • Foam products may require more complex comparative characterization.
  • Lotion products require formulation and performance comparability.
  • Combination products require demonstration of pharmaceutical equivalence and bioequivalence under the applicable FDA framework.
  • Topical products can face additional scrutiny regarding in vitro release, irritation, sensitization, and formulation performance.

The FDA's approval standards do not guarantee commercial interchangeability in every payer or pharmacy setting. Formulary status, product availability, state substitution rules, and payer contracts remain important.

What is the financial trajectory for halobetasol propionate?

The financial trajectory is bifurcated.

Generic segment

The generic segment has a mature-volume, declining-price profile. Revenue is supported by continuing prescription demand but limited by:

  • Price erosion
  • Pharmacy benefit manager negotiations
  • Multiple manufacturers
  • Retail substitution
  • Low switching costs
  • Limited promotional differentiation

Unit demand may remain stable while manufacturer revenue falls. Gross margins are highest for efficient suppliers with reliable API sourcing and manufacturing capacity.

Branded segment

Branded products can sustain higher gross-to-net revenue through:

  • Proprietary vehicles
  • Patient-assistance programs
  • Dermatology sales forces
  • Specialty-pharmacy distribution
  • Physician familiarity
  • Combination-product positioning

Net revenue can still underperform gross price because of rebates, discounts, co-pay assistance, returns, and commercial contracting. Product-level revenue is not separately reported for Lexette, Bryhali, or Duobrii in the principal public-company disclosures available through 2024.

Revenue exposure by company

Company exposure Likely financial sensitivity
Generic manufacturers Sensitive to price erosion, supply interruptions and API costs
Sun Pharma Exposure within a broader U.S. dermatology portfolio
Mayne Pharma Greater sensitivity to Lexette prescription growth and commercial execution
Bausch Health and Ortho Dermatologics Exposure to Bryhali and Duobrii within a broader dermatology segment
API suppliers Sensitive to volume, regulatory compliance and customer concentration

What generic launch scenarios exist?

The most likely launch scenarios are:

  1. Continued generic erosion in cream and ointment products.
  2. Authorized-generic or licensed competition against a branded formulation.
  3. Paragraph IV litigation followed by a negotiated launch date.
  4. Non-infringing generic entry using a different vehicle or label.
  5. Post-expiry multi-entrant competition that rapidly compresses net pricing.
  6. Limited generic entry if the addressable market does not justify formulation and litigation costs.

A branded product may retain meaningful sales after generic entry if physicians value the vehicle, patients respond better to the formulation, or payer contracts restrict substitution. That protection is usually weaker when the generic has the same dosage form, concentration, and labeling.

What geographic markets matter for halobetasol propionate?

The U.S. is the most important market for the branded formulation strategy because of its high prescription spending and Orange Book-based generic pathway. Europe and other markets may use different regulatory classifications, trade names, concentrations, and reimbursement systems.

International commercial value depends on:

  • Local approval status
  • Prescription or over-the-counter classification
  • National reimbursement
  • Local patent rights
  • Import and manufacturing requirements
  • Dermatology prescribing patterns
  • Availability of substitute corticosteroids

U.S. patent protection does not establish protection in Europe, Canada, Japan, or emerging markets. Geographic patent coverage must be assessed jurisdiction by jurisdiction.

What manufacturing and intellectual-property barriers remain?

Manufacturing barriers are higher for foam, lotion, and combination products than for conventional cream and ointment.

Relevant barriers include:

  • Consistent particle-size distribution
  • Uniform API dispersion
  • Emulsion stability
  • Aerosol filling and propellant control
  • Microbial limits and preservative performance
  • In vitro release comparability
  • Packaging compatibility
  • Stability over the labeled shelf life
  • Scale-up reproducibility
  • Combination-product degradation control

These barriers can delay approval even when molecule-level patent protection has expired. They also support formulation patents and trade-secret protection around process parameters, mixing order, filling conditions, and quality-control specifications.

Key Takeaways

  • Halobetasol propionate is a mature generic topical corticosteroid with limited active-ingredient exclusivity.
  • Conventional cream and ointment products face high generic substitution and price erosion.
  • Lexette, Bryhali, and Duobrii depend on formulation, vehicle, treatment-regimen, and combination-product differentiation.
  • Duobrii has the most complex intellectual-property profile because it combines halobetasol propionate with tazarotene.
  • No major company separately reports halobetasol propionate revenue, so market size must be estimated from prescription and claims datasets.
  • The financial opportunity is concentrated in branded formulations and specialty-dermatology portfolios, not in the generic molecule.
  • Generic entry risk is highest for conventional products and rises for branded products as formulation patents expire or are designed around.
  • Manufacturing complexity can delay topical generic entry but generally does not create a permanent substitute for patent protection.
  • U.S. Orange Book listings, Paragraph IV certifications, litigation dockets, and settlement terms determine product-specific launch risk.
  • The market trajectory is likely to remain volume-stable but price-competitive for generics, with selective premium potential for differentiated formulations.

FAQs about halobetasol propionate market and patents

Is halobetasol propionate still profitable for pharmaceutical companies?

It can be profitable in branded foam, lotion, and combination products. Generic cream and ointment margins are lower because several manufacturers compete on price.

Is halobetasol propionate available as a generic?

Yes. Generic halobetasol propionate is available in conventional topical forms, including cream and ointment, with availability varying by strength, manufacturer, pharmacy and market.

Which halobetasol product has the strongest commercial differentiation?

Duobrii has the strongest differentiation because it combines halobetasol propionate with tazarotene in a branded lotion for plaque psoriasis. Lexette and Bryhali rely mainly on their delivery vehicles and labeling.

Can a generic company copy a branded halobetasol foam?

A generic company can seek FDA approval, but it must address formulation equivalence, patent certifications, labeling requirements, and any listed patents. It may also use a different formulation if it can meet FDA requirements without infringing enforceable claims.

Does halobetasol propionate have biosimilar risk?

No. Halobetasol propionate is a chemically synthesized small molecule, not a biologic. The relevant competitive pathway is generic drug approval through an ANDA or another applicable FDA pathway, not biosimilar approval under the Public Health Service Act.

References

  1. U.S. Food and Drug Administration. (2018a). Lexette (halobetasol propionate) foam, 0.05%: Prescribing information.
  2. U.S. Food and Drug Administration. (2018b). Bryhali (halobetasol propionate) lotion, 0.01%: Prescribing information.
  3. U.S. Food and Drug Administration. (2019). Duobrii (halobetasol propionate and tazarotene) lotion: Prescribing information.
  4. U.S. Food and Drug Administration. (2024a). Approved drug products with therapeutic equivalence evaluations: Orange Book.
  5. U.S. Food and Drug Administration. (2024b). Drugs@FDA: FDA-approved drugs database.
  6. U.S. Food and Drug Administration. (2017). Abbreviated new drug application approvals and generic drug guidance for topical products.
  7. Bausch Health Companies Inc. (2023). Annual report for the fiscal year ended December 31, 2023.
  8. Mayne Pharma Group Limited. (2023). Annual report for the fiscal year ended June 30, 2023.
  9. Sun Pharmaceutical Industries Limited. (2024). Annual report for the fiscal year ended March 31, 2024.

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