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List of Excipients in Branded Drug CALCIPOTRIENE
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| Company | Tradename | Ingredient | NDC | Excipient | Potential Generic Entry |
|---|---|---|---|---|---|
| Mayne Pharma | CALCIPOTRIENE | calcipotriene | 51862-512 | .ALPHA.-TOCOPHEROL, DL- | |
| Mayne Pharma | CALCIPOTRIENE | calcipotriene | 51862-512 | CETYL ALCOHOL | |
| Mayne Pharma | CALCIPOTRIENE | calcipotriene | 51862-512 | EDETATE DISODIUM | |
| Mayne Pharma | CALCIPOTRIENE | calcipotriene | 51862-512 | ISOPROPYL MYRISTATE | |
| Mayne Pharma | CALCIPOTRIENE | calcipotriene | 51862-512 | LIGHT MINERAL OIL | |
| Mayne Pharma | CALCIPOTRIENE | calcipotriene | 51862-512 | PETROLATUM | |
| >Company | >Tradename | >Ingredient | >NDC | >Excipient | >Potential Generic Entry |
Generic Drugs Containing CALCIPOTRIENE
What are the Most Frequently-Used Excipients in CALCIPOTRIENE?
| # Of NDCs | Excipient |
|---|---|
| 3 | .ALPHA.-TOCOPHEROL |
| 3 | BENZYL ALCOHOL |
| 5 | CETETH-20 |
| 5 | CETOSTEARYL ALCOHOL |
| 2 | DIAZOLIDINYL UREA |
| 2 | DICHLOROBENZYL ALCOHOL |
| ># Of NDCs | >Excipient |
Calcipotriene Excipient Strategy and Commercial Opportunities
Calcipotriene is a mature topical vitamin D analog with limited active-ingredient differentiation. Commercial value now depends on excipient selection, vehicle performance, combination therapy, dosing convenience, tolerability, and manufacturing economics. The strongest opportunities are in psoriasis formulations that improve skin penetration without increasing irritation, reduce application burden, support scalp and intertriginous use, or combine calcipotriene with a corticosteroid in a stable, cosmetically acceptable vehicle.
What is the commercial status of calcipotriene?
Calcipotriene, also known as calcipotriol outside the United States, is approved for topical treatment of plaque psoriasis. It is marketed as a monotherapy and in fixed-dose combinations with betamethasone dipropionate.
| Product type | Typical strength | Dosage form | Commercial position |
|---|---|---|---|
| Calcipotriene monotherapy | 0.005% | Cream | Generic and branded historical products |
| Calcipotriene monotherapy | 0.005% | Ointment | Generic and branded historical products |
| Calcipotriene monotherapy | 0.005% | Topical solution | Useful for scalp psoriasis |
| Calcipotriene monotherapy | 0.005% | Foam | Branded product, with vehicle differentiation |
| Calcipotriene/betamethasone dipropionate | 0.005%/0.064% | Ointment | Generic and branded products |
| Calcipotriene/betamethasone dipropionate | 0.005%/0.064% | Topical suspension | Scalp and body use |
| Calcipotriene/betamethasone dipropionate | 0.005%/0.064% | Foam | Premium branded and generic opportunity |
| Calcipotriene/betamethasone dipropionate | 0.005%/0.064% | Cream | Newer water-based delivery platform |
FDA-approved products include calcipotriene cream, ointment, and solution; Sorilux calcipotriene foam; Taclonex ointment and suspension; Enstilar foam; and Wynzora cream. The relevant FDA labels identify psoriasis as the principal indication and establish dosage, age restrictions, warnings, and excipient composition.[1-7]
The active ingredient is no longer the main source of exclusivity. Product differentiation rests on formulation, delivery system, combination composition, manufacturing process, and regulatory approval status.
What excipients are used in calcipotriene products?
Calcipotriene is highly potent and used at a low concentration, typically 0.005% w/w. This creates formulation challenges because the product must deliver a uniform microdose across the skin while maintaining chemical stability and acceptable sensory properties.
Ointment excipients
Calcipotriene ointments generally use an anhydrous hydrocarbon base. White petrolatum, mineral oil, paraffin, and related oleaginous materials can provide:
- High occlusion
- Strong skin hydration
- Low water activity
- Relatively simple microbiological control
- Good chemical protection for a light-sensitive, low-dose active
The disadvantages are poor cosmetic acceptability, greasiness, transfer to clothing, and reduced patient adherence. Ointments remain useful for thick plaques, but they are less attractive for large body-surface-area treatment.
Cream excipients
Creams use an emulsion system, typically involving aqueous and oily phases, emulsifiers, humectants, emollients, and preservatives. Excipients may include:
- Purified water
- Mineral or paraffin-derived oils
- Fatty alcohols
- Glyceryl or sorbitan-based emulsifiers
- Polyethylene glycol derivatives
- Humectants such as glycerin or propylene glycol
- Chelating agents
- Preservatives where required
- pH-adjusting agents
Creams offer better spreadability and patient acceptance than ointments. Their technical risks include hydrolysis, oxidation, phase separation, preservative failure, and active loss through adsorption or migration into packaging.
Wynzora is commercially important because it uses a cream formulation for the calcipotriene/betamethasone combination rather than the more common ointment, suspension, or foam formats. Its vehicle is positioned around cosmetic acceptability and ease of use.[6]
Foam excipients
Foam products use propellants, volatile solvents, surfactants, emollients, and a foam-forming system. The container and valve are part of the dosage form and can affect dose uniformity and product performance.
Foam excipients can improve:
- Spreadability over hair-bearing skin
- Scalp application
- Drying time
- Patient acceptance
- Treatment of larger areas
- Perceived cleanliness after application
The main development risks are propellant compatibility, valve performance, canister pressure, flammability, evaporation rate, foam collapse, and active uniformity during shelf life. Enstilar and Sorilux demonstrate that foam technology can support premium positioning in topical psoriasis.[3,5]
Solvents and penetration enhancers
Propylene glycol, ethanol, isopropanol, and related solvents can improve solubilization and skin delivery. They can also increase burning, stinging, dryness, and irritation. Their value depends on the target body site and treatment population.
A formulation intended for scalp psoriasis may tolerate a more volatile solvent system than a product intended for facial, genital, or intertriginous skin. Excipient selection therefore should be linked to the label claim and application site rather than treated as a general vehicle optimization exercise.
What formulation strategies offer the strongest commercial opportunity?
The highest-value strategies combine improved patient usability with a defensible formulation or delivery platform.
1. Low-irritation water-based cream
A water-based cream can address the main weakness of ointments while retaining sufficient emollience for plaque psoriasis. Key development goals include:
- Low sting on fissured plaques
- Minimal residue
- Rapid rub-in
- No visible whitening
- Good stability at room temperature
- Low preservative burden
- Compatibility with laminate tubes or airless pumps
A cream should not rely on high concentrations of alcohol or propylene glycol if the target population includes patients with sensitive or inflamed skin.
2. Scalp-optimized solution or foam
Scalp psoriasis is a practical formulation segment because ointments are poorly accepted in hair-bearing areas. A successful product should dry quickly, avoid hair clumping, minimize residue, and permit precise application.
A metered pump, dropper, or directional applicator could create additional differentiation. The commercial opportunity is strongest when the device reduces dosing errors and improves access to the scalp rather than simply changing the container.
3. Fixed-dose calcipotriene/betamethasone cream
Combination therapy can reduce the need for separate products and improve regimen adherence. The technical challenge is maintaining stability between calcipotriene and a corticosteroid in the same vehicle.
The formulation must control:
- pH
- Water activity
- Oxidative stress
- Emulsion stability
- Drug partitioning
- Uniformity across the treatment period
- Compatibility with the package
The regulatory pathway is more demanding than a standard generic cream if the product uses a novel vehicle, a new combination ratio, or a different delivery technology.
4. Preservative-reduced or preservative-free packaging
Preservatives can contribute to irritation and sensitization. Airless pumps, unit-dose packages, low-water vehicles, and sterile or microbiologically controlled manufacturing may reduce preservative requirements.
The commercial benefit is greatest for patients with chronic application needs and sensitive skin. The added cost of packaging and manufacturing must be balanced against premium pricing and improved adherence.
5. Patient-friendly multi-site platform
A single product that can be used on the body and scalp has commercial appeal, but it must meet conflicting requirements. Body plaques often benefit from emollience and occlusion, while scalp use favors volatility and low residue.
A product can address this through a vehicle with fast rub-in and moderate emollience, or through a package with interchangeable applicators. Product labeling and clinical data must support the proposed use sites.
How does calcipotriene compare with competing topical psoriasis products?
Calcipotriene competes with corticosteroids, retinoids, PDE-4 inhibitors, aryl hydrocarbon receptor agonists, and combination products.
| Product class | Main advantage | Main limitation | Excipient opportunity |
|---|---|---|---|
| Calcipotriene | Steroid-sparing mechanism | Irritation and application burden | Improve tolerability and cosmetic profile |
| Topical corticosteroids | Fast anti-inflammatory effect | Skin atrophy and other steroid-related risks | Combination stability and reduced steroid exposure |
| Calcipotriene/betamethasone | Strong efficacy and convenience | Combination IP and steroid warnings | Cream, foam, scalp, and low-residue vehicles |
| Tazarotene | Retinoid efficacy | Irritation and dryness | Barrier-supportive vehicles |
| Crisaborole | Nonsteroidal option | Burning or stinging in some patients | Reduced-irritation emulsions |
| Tapinarof | Nonsteroidal, broad topical positioning | Higher branded pricing | Formulation and packaging convenience |
| Roflumilast | Nonsteroidal PDE-4 approach | Newer competitive class | Low-cost generic or specialty-site delivery |
Calcipotriene has a cost advantage over newer branded nonsteroidal products because of its maturity and generic availability. Its main commercial weakness is that many patients find older ointment and solution vehicles inconvenient or irritating.
What patents protect calcipotriene formulations?
The original composition-of-matter and early product exclusivity for calcipotriene are no longer the principal commercial barriers in the United States. Current protection is more likely to arise from:
- Specific fixed-dose calcipotriene/betamethasone compositions
- Foam and aerosol delivery systems
- Cream vehicles
- Solvent and emulsifier combinations
- Particle-size or dispersion controls
- Packaging and metering systems
- Manufacturing processes
- Stability-enhancing excipient systems
- Method-of-use claims tied to treatment duration, body site, or dosing frequency
The Orange Book should be reviewed at the product level for current listed patents and regulatory exclusivities. FDA’s Orange Book does not treat all formulation know-how as a listed patent, and a formulation patent may affect litigation risk even when the product has limited or no remaining active-ingredient exclusivity.[8]
What is the Orange Book status of calcipotriene products?
Calcipotriene cream, ointment, and solution have mature generic competition. Branded combination products and newer delivery systems may retain greater formulation-based differentiation. Orange Book entries, listed patents, and exclusivity dates can change through patent expiration, delisting, licensing, or approval of additional generic products.
The practical review should distinguish:
- Active ingredient patents
- Drug product and formulation patents
- Method-of-use patents
- Pediatric exclusivity
- New drug application exclusivity
- Patent certifications submitted by generic applicants
A formulation strategy that depends on non-listed trade secrets may be commercially useful, but it will not necessarily block an ANDA applicant.
When does calcipotriene lose exclusivity?
Calcipotriene’s core small-molecule exclusivity has effectively expired in the United States. The commercial question is no longer whether the molecule is protected, but whether a particular product has residual protection through its dosage form, combination, formulation, or device.
Generic entry scenarios
| Scenario | Likely commercial effect |
|---|---|
| Generic calcipotriene cream or ointment | Price erosion and substitution in basic psoriasis treatment |
| Generic calcipotriene solution | Pressure on scalp-treatment pricing |
| Generic combination ointment | Reduced share for legacy branded products |
| Generic combination suspension or foam | Pressure on premium branded combination products |
| Novel cream or device | Potential differentiated pricing if clinical and usability benefits are demonstrated |
| Preservative-free or low-irritation product | Niche premium opportunity, subject to evidence |
A generic applicant may challenge listed patents through Paragraph IV certification. A Paragraph IV filing can trigger patent litigation and, if litigation is filed within the statutory period, an automatic stay of approval for up to 30 months under the Hatch-Waxman framework.[9] The commercial impact depends on the patent claims, the applicant’s formulation, the litigation outcome, and whether the applicant launches at risk.
Which companies are challenging calcipotriene products?
The generic market includes manufacturers of topical dermatology products, but market participation changes as ANDAs are approved, transferred, discontinued, or listed as commercially unavailable. The principal competitive groups are:
- Large generic manufacturers with topical manufacturing capacity
- Specialty dermatology companies
- Contract development and manufacturing organizations
- Branded companies controlling combination or novel-vehicle products
- Regional manufacturers pursuing non-U.S. calcipotriol products
For business planning, the relevant competitor is not only the approved product owner. It is the manufacturer with reliable tube filling, emulsion processing, foam packaging, analytical capability, and sufficient scale to supply wholesalers. Topical products can face manufacturing constraints even after legal exclusivity ends.
What manufacturing and IP barriers affect calcipotriene?
Calcipotriene products have several technical barriers that can support commercial differentiation.
Low-dose content uniformity
At 0.005%, small weighing, blending, or sampling errors can produce clinically meaningful variability. Manufacturers need validated geometric dilution, high-shear dispersion, or equivalent controls.
Light and oxygen sensitivity
Packaging, headspace, antioxidants, chelators, and opaque containers can affect shelf life. Formulation changes must be evaluated with extractables and leachables studies, photostability, and in-use stability.
Combination stability
Calcipotriene and betamethasone dipropionate may have different solubility and degradation profiles. A vehicle that stabilizes one active can destabilize the other. This creates an opportunity for proprietary microenvironment control, but also raises development costs.
Scale-up
A vehicle that performs well in laboratory batches may fail at commercial scale because of changes in mixing energy, cooling rate, aeration, particle dispersion, or foam filling. Scale-up data can become a practical barrier even where patent protection is limited.
Packaging-device integration
Foam products require control of canister, valve, propellant, fill weight, and actuation behavior. Creams may require airless pumps or metered dispensers to support dose consistency. Packaging IP and manufacturing know-how can therefore have commercial value independent of the active ingredient.
What licensing opportunities exist for calcipotriene?
Licensing opportunities are more likely to concern platforms than the calcipotriene molecule itself. Attractive assets include:
- Proprietary foam technology
- Low-water or anhydrous cream systems
- Scalp-directed applicators
- Preservative-free topical packaging
- Combination-product stability platforms
- Transdermal or follicular delivery systems
- Contract manufacturing capacity for dermatology emulsions
- Regional rights to branded calcipotriene combinations
A licensee should value the asset based on formulation data, freedom-to-operate, regulatory pathway, manufacturing transferability, and evidence of improved adherence. A nominal patent term has limited value if the product cannot demonstrate bioequivalence, dose uniformity, or acceptable skin tolerability.
What regulatory pathway applies to new calcipotriene products?
A conventional generic topical product may be submitted through an abbreviated new drug application if it can demonstrate pharmaceutical equivalence and the required bioequivalence or product-performance evidence. A novel vehicle, new combination, new indication, or materially different delivery system may require a more complex development strategy.
The FDA’s topical-product framework places emphasis on:
- Qualitative and quantitative composition
- Comparative physicochemical characterization
- In vitro release testing
- In vitro permeation testing where relevant
- Microstructure
- Rheology
- Particle or droplet size
- pH and viscosity
- Microbial limits
- Stability
- Comparative clinical or pharmacodynamic evidence where required
The regulatory burden increases when excipient changes alter local delivery, absorption, or safety. Excipients with established topical use can reduce development risk, but they do not eliminate the need to prove product performance.
How strong is the calcipotriene patent estate?
The molecule-level estate is weak because calcipotriene is an old, genericized active ingredient. Product-level estates can be stronger when they cover a specific combination, vehicle, foam system, package, or manufacturing process.
| Estate component | Relative strength |
|---|---|
| Core calcipotriene composition | Low |
| Basic cream, ointment, or solution | Low to moderate |
| Fixed-dose calcipotriene/betamethasone product | Moderate |
| Novel foam delivery system | Moderate to strong, depending on claim scope |
| Proprietary cream technology | Moderate |
| Packaging and metering device | Moderate |
| Manufacturing trade secrets | Commercially meaningful but difficult to enforce |
| Method-of-use claims | Variable and often vulnerable to design-around |
The strongest commercial defense usually combines patents with manufacturing complexity, brand recognition, physician familiarity, and differentiated patient experience.
What revenue exposure and launch opportunities exist?
Revenue exposure is concentrated in the branded combination and premium-vehicle segments, not in conventional calcipotriene ointment. Generic entry can cause rapid price compression in basic dosage forms, while differentiated products may retain value through:
- Better patient adherence
- Lower application frequency
- Scalp usability
- Lower irritation
- Better cosmetic acceptance
- Reduced steroid exposure
- Specialty-pharmacy positioning
- Device-enabled dosing
The most credible launch strategy is a targeted topical product rather than an undifferentiated calcipotriene generic. A company entering the market should prioritize a body-site problem, a clear excipient benefit, or a combination product with a defensible formulation and scalable manufacturing process.
Key Takeaways
- Calcipotriene’s core molecule is commercially mature and largely exposed to generic competition.
- Excipient selection is the main route to differentiation.
- Ointments provide stability and occlusion but have poor cosmetic acceptance.
- Creams offer the strongest opportunity for patient-friendly reformulation.
- Foams and scalp-directed systems can support premium positioning.
- Calcipotriene/betamethasone combinations have greater formulation and IP value than calcipotriene monotherapy.
- Preservative reduction, low irritation, rapid drying, and package-dose control are commercially relevant objectives.
- Patent strength depends on the vehicle, combination, device, and manufacturing claims rather than the active ingredient.
- Generic launch risk is highest for conventional creams, ointments, and solutions.
- A successful new entrant needs both formulation differentiation and reliable topical manufacturing capacity.
FAQs
Is calcipotriene available as a generic drug?
Yes. Generic calcipotriene is available in several topical dosage forms, including cream, ointment, and solution. Availability varies by market and manufacturer.
Can calcipotriene be formulated without propylene glycol?
Yes. Propylene glycol is not essential to every calcipotriene vehicle. Alternative emulsifiers, solvents, humectants, and anhydrous systems can be evaluated, but the substitute must preserve solubility, uniformity, stability, and skin delivery.
Is calcipotriene suitable for an over-the-counter product?
Calcipotriene is generally positioned as a prescription dermatology product in the United States. An OTC strategy would require an FDA-recognized monograph pathway or approval of a new drug application, supported by appropriate safety, efficacy, labeling, and consumer-use data.
Does calcipotriene have biosimilar competition?
No. Calcipotriene is a chemically synthesized small molecule, not a biologic. Competition occurs through generic-drug and formulation pathways rather than biosimilar approval.
What is the best dosage form for a new calcipotriene product?
The strongest commercial candidates are usually a low-irritation cream, a fast-drying scalp foam or solution, or a stable calcipotriene/betamethasone combination cream. The optimal format depends on target body site, excipient tolerability, regulatory pathway, and manufacturing cost.
References
- U.S. Food and Drug Administration. (n.d.). Calcipotriene cream prescribing information. FDA.
- U.S. Food and Drug Administration. (n.d.). Calcipotriene ointment prescribing information. FDA.
- U.S. Food and Drug Administration. (n.d.). Sorilux (calcipotriene) foam prescribing information. FDA.
- U.S. Food and Drug Administration. (n.d.). Taclonex (calcipotriene and betamethasone dipropionate) ointment prescribing information. FDA.
- U.S. Food and Drug Administration. (n.d.). Enstilar (calcipotriene and betamethasone dipropionate) foam prescribing information. FDA.
- U.S. Food and Drug Administration. (n.d.). Wynzora (calcipotriene and betamethasone dipropionate) cream prescribing information. FDA.
- National Library of Medicine. (n.d.). DailyMed: Calcipotriene and calcipotriene combination product labeling. DailyMed.
- U.S. Food and Drug Administration. (n.d.). Approved drug products with therapeutic equivalence evaluations, Orange Book. FDA.
- U.S. Congress. (1984). Drug Price Competition and Patent Term Restoration Act of 1984, Pub. L. No. 98-417.
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Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.
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