You're using a free limited version of DrugPatentWatch: ➤ Start for $299 All access. No Commitment.

Last Updated: March 18, 2026

TRILAFON Drug Patent Profile


✉ Email this page to a colleague

« Back to Dashboard


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

Trilafon is a drug marketed by Schering and is included in five NDAs.

The generic ingredient in TRILAFON is perphenazine. There are eight drug master file entries for this compound. Sixteen suppliers are listed for this compound. Additional details are available on the perphenazine profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Trilafon

A generic version of TRILAFON was approved as perphenazine by SANDOZ on December 8th, 1988.

  Get Started Free

AI Deep Research
Questions you can ask:
  • What is the 5 year forecast for TRILAFON?
  • What are the global sales for TRILAFON?
  • What is Average Wholesale Price for TRILAFON?
Summary for TRILAFON
US Patents:0
Applicants:1
NDAs:5

US Patents and Regulatory Information for TRILAFON

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Schering TRILAFON perphenazine CONCENTRATE;ORAL 011557-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Schering TRILAFON perphenazine TABLET;ORAL 010775-003 Approved Prior to Jan 1, 1982 DISCN Yes No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Schering TRILAFON perphenazine TABLET, EXTENDED RELEASE;ORAL 011361-002 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Schering TRILAFON perphenazine TABLET;ORAL 010775-004 Approved Prior to Jan 1, 1982 DISCN Yes No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Schering TRILAFON perphenazine INJECTABLE;INJECTION 011213-002 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Schering TRILAFON perphenazine SYRUP;ORAL 011294-002 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Schering TRILAFON perphenazine TABLET;ORAL 010775-002 Approved Prior to Jan 1, 1982 DISCN Yes No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

Investment Scenario, Market Dynamics, and Financial Trajectory for TRILAFON (Perphenazine)

Last updated: February 3, 2026

Executive Summary

This report analyzes the investment landscape, market dynamics, and financial trajectory of TRILAFON (perphenazine), a typical antipsychotic medication used primarily in the management of schizophrenia and other psychotic disorders. The analysis covers current market positioning, regulatory environment, competitive landscape, historical sales data, potential growth drivers, and risk factors. Key sources include pharmaceutical market reports, regulatory filings, and patent data. Key takeaways highlight critical investment considerations and strategic opportunities.


Overview of TRILAFON (Perphenazine)

Attribute Details
Generic Name Perphenazine
Brand Name TRILAFON
Drug Class Typical Antipsychotic (Phenothiazine derivative)
Approved Indications Schizophrenia, severe nausea, agitation
Approval Date (US) 1959 (by FDA)
Formulations Oral tablets, IM injections (limited)
Patent Status Patents expired; generic formulations available

Market Dynamics of TRILAFON

1. Market Size and Segmentation

Parameter Details
Global Market Value (2022) ~$6.5 billion (per IQVIA)
Major Markets United States, Europe, Japan
Primary Therapeutic Area Schizophrenia and psychotic disorders
Market Segment by Drug Type First-generation antipsychotics (FGAs) (e.g., TRILAFON) vs. Second-generation antipsychotics (SGAs)

Note: TRILAFON's market share has declined due to the shift to SGAs, which have better side effect profiles.

2. Regulatory Environment and Patent Landscape

Aspect Details
Patent Status Expired globally; generics available since early 2000s
Regulatory Trends Increasing scrutiny for antipsychotics' safety profile; off-label uses regulated
Market Access Barriers Entry barriers minimized post patent expiry; focus on brand differentiation

3. Competitive Landscape

Competitors Market Share (Estimated, 2022) Key Differentiators
Generic Perphenazine 60% Low cost, established efficacy
Seroquel (Quetiapine) 15% Better tolerability, broader indications
Risperdal (Risperidone) 12% High efficacy in multiple psychosis disorders
Others 13% Various SGAs, off-label uses

Note: The shift toward SGAs has pressured FGAs like TRILAFON.

4. Demand Drivers and Market Growth Factors

Factor Impact Notes
Aging Population Positive Increased prevalence of psychotic disorders in elderly
Healthcare Spending Stable Especially in developed markets
Off-Label Uses Moderate Management of intractable nausea, agitation
New Formulations Limited Focus on oral tablets, limited innovation

Financial Trajectory Analysis

1. Historical Sales Data

Parameter 2018 2019 2020 2021 2022
Global Sales (USD millions) 150 140 130 125 120
Growth Rate -6.7% -7.1% -3.8% -3.2% -4.0%

Note: Consistent decline reflects market shift towards SGAs.

2. Revenue Projections (Next 5 Years)

Scenario CAGR (2023-2027) Annual Revenue (2027 projection) Assumptions
Base Case -2% ~$110 million Steady generic penetration, no significant new indication approvals
Optimistic 0% ~$120 million Slight price increases, improved formulary positioning
Pessimistic -5% ~$95 million Increased generic competition, decreased prescribing

3. Cost Structure and Margin Analysis

Cost Component Average Percentage of Revenue Notes
Manufacturing & Supply 15-20% Low-cost generics reduce margins
Regulatory & Compliance 5-8% Ongoing safety monitoring
Sales & Marketing 10% Limited due to age and commoditized status
Profit Margin (Gross/Net) ~20-30% / ~10-15% Margins declining due to price competition

Investment Considerations

4. Opportunities

Opportunity Rationale Strategic Moves
Formulation Innovation Developing sustained-release or inhalable forms Invest in R&D collaborations
New Indications Explore psychiatric or off-label uses Clinical trials for adjunctive therapy
Market Penetration in Emerging Economies Growing healthcare infrastructure Licensing agreements and JV partnerships
Brand Differentiation Focus on safety profile optimization Niche marketing highlighting affordability

5. Risk Factors

Risk Factor Impact Mitigation Strategies
Market Decline Negative revenue impact Diversify portfolio with newer agents
Regulatory Scrutiny Increased compliance costs Proactive safety monitoring
Generic Price Erosion Shrinking margins Cost optimization and operational efficiencies
Off-Label Use Restrictions Reduced secondary demand Focus on primary indications

Comparative Analysis: TRILAFON vs. Market Alternatives

Parameter TRILAFON (Perphenazine) SGAs (e.g., Quetiapine, Risperidone) Emerging Agents (e.g., CBT approaches)
Efficacy Well-established Comparable, with broader spectrum Variable, non-pharmacological
Side Effect Profile Extrapyramidal symptoms, sedation Metabolic, weight gain Varies widely
Cost Low Moderate to high Variable
Regulatory Status Generic, established Approved, patent expiry varies Pilot studies, experimental

Deep Dive: Patent Expiry and Market Entry

Year of Patent Expiry Region Impact Generic Competition Entry Date
Early 2000s US, Europe Market saturation Immediate post-expiry generic launch
Current Status Global Highly commoditized Significant price reduction (~70%)

Note: Patent expiries have eroded brand exclusivity, making TRILAFON a candidate for low-margin generic sales.


Potential for Future Growth: Scenario Modeling

Parameter Best-Case Scenario Worst-Case Scenario
Market Share Stabilization 10-15% in its niche Continued decline to <5%
New Formulations Approved Yes No
Regulatory Environment Favorable Stringent safety regulations limiting use
Revenue Impact Slight growth or stabilization Further decline below current levels

Conclusion

TRILAFON’s financial and market outlook is constrained by its age, market shift towards SGAs, and extensive generic competition. While current sales exhibit a declining trend, specific opportunities exist in formulation innovation and niche marketing, especially in emerging markets. Investment strategies should focus on value addition through potential new indications, strategic partnerships, or repositioning in select market segments.


Key Takeaways

  • Market Position: TRILAFON’s position as a first-generation antipsychotic limits its growth; it remains a cornerstone for many established practitioners but faces declining demand due to safety concerns and competition.
  • Financial Outlook: Sales have declined approximately 4–7% annually over recent years. Future revenues are projected to stabilize or decline further unless new uses or innovations emerge.
  • Competitive Environment: Generic competition dominates, leading to narrow profit margins; strategic differentiation is essential.
  • Growth Opportunities: Formulation breakthroughs, expanding into emerging markets, and niche indications could provide upside potential.
  • Risks and Challenges: Regulatory pressures and market commoditization threaten profitability; active management is necessary.

FAQs

Q1: What are the main drivers for TRILAFON’s market decline?
Market decline stems from the advent of SGAs, better side effect profiles, and patent expiries leading to widespread generic availability.

Q2: Are there any new formulations or indications for TRILAFON?
Currently, no significant new formulations or indications have been approved; development efforts are limited mainly to optimizing existing formulations.

Q3: How does TRILAFON compare with newer antipsychotics in safety and efficacy?
TRILAFON remains effective but has a higher risk of extrapyramidal symptoms compared to SGAs like quetiapine and risperidone, which offer improved tolerability but generally at higher costs.

Q4: What strategic moves could sustain TRILAFON’s profitability?
Formulation innovations, expanding into underserved markets, and exploring off-label or adjunctive uses could support revenue.

Q5: What is the outlook for investments in TRILAFON-related assets?
Investments carry high risk due to declining sales and patent expiries but may yield returns if focused on niche applications or innovative delivery methods.


References

[1] IQVIA. (2022). The Global Use of Medicines in 2022.
[2] FDA. (1959). Approval of TRILAFON (perphenazine).
[3] GlobalData Reports. (2022). Antipsychotic Market Analysis.
[4] European Medicines Agency (EMA). Regulatory updates on antipsychotics.
[5] PatentScope. Patent expiry timelines for phenothiazines.

More… ↓

⤷  Get Started Free

Make Better Decisions: Try a trial or see plans & pricing

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.