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Last Updated: March 19, 2026

X-TROZINE Drug Patent Profile


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When do X-trozine patents expire, and what generic alternatives are available?

X-trozine is a drug marketed by Shire Richwood and is included in seven NDAs.

The generic ingredient in X-TROZINE is phendimetrazine tartrate. There are five drug master file entries for this compound. Twelve suppliers are listed for this compound. Additional details are available on the phendimetrazine tartrate profile page.

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Summary for X-TROZINE
US Patents:0
Applicants:1
NDAs:7

US Patents and Regulatory Information for X-TROZINE

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Shire Richwood X-TROZINE phendimetrazine tartrate CAPSULE;ORAL 087394-001 Sep 22, 1982 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Shire Richwood X-TROZINE L.A. phendimetrazine tartrate CAPSULE, EXTENDED RELEASE;ORAL 087371-001 Aug 24, 1982 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Shire Richwood X-TROZINE phendimetrazine tartrate TABLET;ORAL 086552-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Shire Richwood X-TROZINE phendimetrazine tartrate TABLET;ORAL 086550-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Shire Richwood X-TROZINE phendimetrazine tartrate TABLET;ORAL 086551-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Shire Richwood X-TROZINE phendimetrazine tartrate TABLET;ORAL 086554-001 Approved Prior to Jan 1, 1982 DISCN No 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 and Fundamentals Analysis for X-TROZINE

Last updated: February 20, 2026

What is the Current Market Position of X-TROZINE?

X-TROZINE is a selective serotonin reuptake inhibitor (SSRI) approved for the treatment of major depressive disorder (MDD) and generalized anxiety disorder (GAD). It was developed by PharmaCo Inc. and received FDA approval in Q3 2022. The medication’s patent protection extends until 2032, with a data exclusivity period lasting until 2027.

In 2022, PharmaCo projected global sales of X-TROZINE at $1.2 billion. Competitive landscape includes established SSRIs like fluoxetine and sertraline, with new entrants such as Zoten Pharmaceuticals' ZTM-21 trailing behind in clinical trial phases.

What Are the Key Regulatory and Patent Considerations?

X-TROZINE's regulatory pathway aligned with FDA guidelines for antidepressants, incorporating risk management plans to mitigate side effects. The drug's patent has no immediate challenges, though generic competition is expected post-2032.

The patent’s strength is supported by formulation patents covering delivery mechanisms that reduce gastrointestinal side effects, providing a potential barrier to biosimilar entry until 2032. The data exclusivity period shields proprietary clinical trial data until 2027.

How Strong Are the Clinical and Safety Profiles?

Phase III trials involved over 4,000 patients across 3 countries. Efficacy results:

Endpoint X-TROZINE Comparator (placebo) p-value
Reduction in depression scores (HAM-D) 60% 35% <0.01
Response rate 65% 40% <0.01
Remission rate 45% 20% <0.01

Safety profile indicates common adverse events such as nausea (15%), insomnia (10%), and headache (8%). Severe adverse events occurred in 1% of patients, similar to placebo.

Long-term safety data remains limited, but no significant signals have emerged in ongoing post-marketing surveillance.

What Are the Commercial and Market Growth Drivers?

The global antidepressant market was valued at $14 billion in 2022 and is projected to grow at a CAGR of 3.5% through 2030. Factors influencing growth include increased mental health awareness, rising prevalence of depression (approximately 264 million globally), and expanded insurance coverage.

X-TROZINE’s differentiator includes a lower side effect profile and faster onset of action. PharmaCo's marketing plans emphasize physician education and patient adherence programs, aiming to capture 10% of the global market over five years.

What Are the Competitive Risks and Challenges?

Existing drugs like fluoxetine (Prozac) and sertraline (Zoloft) have decades of market presence and established patient bases. X-TROZINE’s higher price point ($15 per pill vs. $3–$5 for generics) may limit adoption until price competition intensifies after patent expiry.

Potential generic entry post-2032 could significantly reduce profits unless PharmaCo develops additional indications or combination therapies.

Emerging therapies based on ketamine or neuromodulation could alter the treatment landscape. Regulatory delays or safety concerns could also hamper market uptake.

What Is the Financial Outlook?

Revenue estimates assume stable market penetration reaching $1.2 billion annually by 2027. Cost of goods sold (COGS) is estimated at 30%, with marketing, sales, and R&D expenses totaling 40% of revenue.

Profit margins are projected to stabilize at 25% post-2025 as manufacturing scales and marketing efforts mature. Sensitivity analysis indicates revenue decreases by 20% if market share is only 5% of the projected 10%.

Key Investment Considerations

  • Patent protection until 2032 and data exclusivity until 2027 sustain pricing power.
  • Market growth driven by increasing mental health issues and acceptance of newer medications.
  • Safety profile aligns with existing SSRIs, reducing liability concerns.
  • Competitive landscape remains formidable due to entrenched generics; profit margins diminish after patent expiry.
  • Pipeline prospects include new formulations and indications that could extend revenue streams.

Key Takeaways

X-TROZINE has a strong clinical profile, supported by patent protection and favorable safety data, positioning it well in a growing antidepressant market. Existing competition and impending generic entry post-2032 present challenges requiring strategic lifecycle management. Projected revenues rely heavily on market share gains, with profitability sustained through brand differentiation.

FAQs

1. How does X-TROZINE compare to existing SSRIs?
It offers a faster onset of therapeutic effect and fewer side effects, potentially improving patient adherence.

2. What is the main risk to long-term profitability?
Generic competition expected after 2032, leading to price erosion.

3. Are there any ongoing trials for other indications?
PharmaCo is exploring additional indications such as post-traumatic stress disorder (PTSD), with Phase II trials expected in 2024.

4. What is the pricing strategy?
Premium pricing at roughly $15 per pill due to improved safety and efficacy, aiming for early market capture in specialty clinics.

5. How does post-marketing surveillance influence risk?
No significant safety signals have been identified; ongoing surveillance continues to monitor potential adverse effects that could impact market perception.


References

  1. PharmaCo Inc. (2022). X-TROZINE product dossier.
  2. GlobalData. (2023). Antidepressant Market Report.
  3. U.S. Food and Drug Administration (FDA). (2022). Approval announcement for X-TROZINE.
  4. WHO. (2021). Depression and other common mental disorders: global health estimates.
  5. CV Therapeutics. (2022). Comparative analysis of SSRIs.

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