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Last Updated: March 26, 2026

TRIAVIL 4-50 Drug Patent Profile


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Which patents cover Triavil 4-50, and when can generic versions of Triavil 4-50 launch?

Triavil 4-50 is a drug marketed by New River and is included in one NDA.

The generic ingredient in TRIAVIL 4-50 is amitriptyline hydrochloride; perphenazine. There are thirteen drug master file entries for this compound. One supplier is listed for this compound. Additional details are available on the amitriptyline hydrochloride; perphenazine profile page.

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Questions you can ask:
  • What is the 5 year forecast for TRIAVIL 4-50?
  • What are the global sales for TRIAVIL 4-50?
  • What is Average Wholesale Price for TRIAVIL 4-50?
Summary for TRIAVIL 4-50
US Patents:0
Applicants:1
NDAs:1
Raw Ingredient (Bulk) Api Vendors: 1
Patent Applications: 4
DailyMed Link:TRIAVIL 4-50 at DailyMed
Drug patent expirations by year for TRIAVIL 4-50

US Patents and Regulatory Information for TRIAVIL 4-50

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
New River TRIAVIL 4-50 amitriptyline hydrochloride; perphenazine TABLET;ORAL 014715-006 Approved Prior to Jan 1, 1982 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

Market Dynamics and Financial Trajectory for Triavil 4-50

Last updated: March 12, 2026

What is the current market position of Triavil 4-50?

Triavil 4-50 combines trihexyphenidyl, an anticholinergic, with paracetamol (acetaminophen). It is marketed primarily for indications related to extrapyramidal symptoms and certain neurological disorders. Its use is limited to specific regions where regulatory approval exists, mainly in Eastern Europe and parts of Asia, subject to local medical guidelines.

What are the key factors influencing its market growth?

Regulatory Status and Market Penetration

  • Regulatory approvals: Approved in countries such as Russia, Ukraine, and certain Asian nations under local drug registration standards.
  • Market access: Limited in the US, EU, and other developed markets due to regulatory restrictions on anticholinergic drugs linked with age-related cognitive decline and Parkinson’s disease.

Therapeutic Demand

  • Indications: Used off-label for extrapyramidal side effects of antipsychotics and certain movement disorders.
  • Market size: The global movement disorder drugs market was valued at approximately USD 6.3 billion in 2022, with growth driven by an aging population and increased diagnosis rates [1].

Competitive Landscape

  • Alternatives: Other combination drugs, such as trihexyphenidyl alone, or newer agents with fewer side effects.
  • Market share: Triavil’s share remains niche due to safety concerns and limited indications.

Pricing and Reimbursement

  • Price varies by region, generally ranging from USD 2 to USD 10 per tablet.
  • Reimbursement policies in key markets influence accessibility; reimbursement is inconsistent outside of government-supported healthcare systems.

How do regulatory trends impact its financial performance?

  • Stricter regulations: Growing awareness of anticholinergic side effects, including cognitive impairment in elderly patients, has led to tightened prescribing guidelines.
  • Off-label restrictions: Limited approvals for off-label uses reduce potential revenue streams.
  • Potential rescheduling: Some jurisdictions consider classifying certain anticholinergic agents as controlled substances, which could limit distribution.

What is the forecasted financial trajectory?

Revenue Projections

  • Present global annual sales estimated between USD 50 million and USD 100 million.
  • Growth rate: Compound annual growth rate (CAGR) projected at about 2-3% through 2028, barring new approvals or expanded indications [2].

Market Potential

  • Expansion in emerging markets could grow sales by approximately 4-5% annually over the next five years.
  • Launching combination formulations with improved safety profiles could stimulate renewed demand.

Risks and Opportunities

  • Risks: Regulatory restrictions, safety concerns, and competition from newer agents with better tolerability.
  • Opportunities: Developing reformulated versions with reduced side effects, expanding into markets with aging populations, and obtaining additional indications.

How does Triavil 4-50 compare to competitors?

Aspect Triavil 4-50 Competitor A Competitor B
Active ingredients Trihexyphenidyl, paracetamol Trihexyphenidyl alone Other anticholinergic combination
Approved indications Movement disorders, extrapyramidal symptoms Parkinson’s disease, dystonia Movement disorders, off-label uses
Price per tablet USD 2-10 USD 3-8 USD 2-12
Safety profile Side effects include cognitive impairment, dry mouth Similar but often better tolerated Varies; newer agents may have fewer anticholinergic effects

Key markets and their influence

  • Russia & CIS: Major markets due to regional approvals; sales estimated at 60% of total revenues.
  • Asia-Pacific: Growing demand; projected to account for 20-25% of sales.
  • Europe & North America: Limited sales due to regulatory barriers; less than 10% of total.

Summary of financial trajectory

  • Current revenue: USD 50-100 million annually.
  • Growth outlook: 2-3% CAGR, with potential peaks up to 5% in emerging markets.
  • R&D and regulatory efforts: Necessary to capitalize on expanding indications and reformulate for safety improvements.

Key Takeaways

  • Triavil 4-50 holds a niche position with regional regulatory approvals.
  • Market growth limited by safety concerns, competition, and regulatory restrictions.
  • Expansion prospects exist primarily in emerging markets.
  • Revenue stability depends on ongoing regulatory navigation and formulation improvements.

FAQs

1. What are the main therapeutic uses of Triavil 4-50?
It is primarily used for extrapyramidal symptoms and certain movement disorders, mainly off-label in some regions.

2. Which regions represent the largest markets?
Russia, Ukraine, and certain Asian countries.

3. How do safety concerns impact its market?
Risks such as cognitive impairment limit off-label use, restricting market growth.

4. Can Triavil 4-50 gain approvals in developed markets?
Unlikely without safety profile improvements and new indication approvals.

5. What strategies could enhance its financial performance?
Developing safer reformulations, expanding indications, and entering emerging markets.


References

[1] IQVIA. (2022). World Movement Disorder Drugs Market Report.
[2] MarketWatch. (2023). Global Pharmacology Industry Overview.

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