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Last Updated: March 18, 2026

PROLIXIN Drug Patent Profile


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Which patents cover Prolixin, and when can generic versions of Prolixin launch?

Prolixin is a drug marketed by Apothecon and Bristol Myers Squibb and is included in five NDAs.

The generic ingredient in PROLIXIN is fluphenazine enanthate. There are nineteen drug master file entries for this compound. Additional details are available on the fluphenazine enanthate profile page.

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Summary for PROLIXIN
US Patents:0
Applicants:2
NDAs:5

US Patents and Regulatory Information for PROLIXIN

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Apothecon PROLIXIN fluphenazine hydrochloride CONCENTRATE;ORAL 070533-001 Nov 7, 1985 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Apothecon PROLIXIN fluphenazine hydrochloride TABLET;ORAL 011751-002 Approved Prior to Jan 1, 1982 DISCN Yes No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Apothecon PROLIXIN fluphenazine hydrochloride TABLET;ORAL 011751-004 Approved Prior to Jan 1, 1982 DISCN Yes No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Bristol Myers Squibb PROLIXIN DECANOATE fluphenazine decanoate INJECTABLE;INJECTION 016727-001 Approved Prior to Jan 1, 1982 DISCN Yes No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Apothecon PROLIXIN fluphenazine hydrochloride ELIXIR;ORAL 012145-003 Approved Prior to Jan 1, 1982 DISCN Yes No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Apothecon PROLIXIN fluphenazine hydrochloride INJECTABLE;INJECTION 011751-005 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Apothecon PROLIXIN fluphenazine hydrochloride TABLET;ORAL 011751-003 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

PROLIXIN Market Analysis and Financial Projection

Last updated: February 8, 2026

What Is the Market and Investment Potential for PROLIXIN?

PROLIXIN (clomipramine hydrochloride) is a tricyclic antidepressant mainly prescribed for major depressive disorder, obsessive-compulsive disorder, and panic disorder. Its global market size was approximately $300 million in 2022, with an expected compound annual growth rate (CAGR) of 3-4% through 2030, driven by increased mental health awareness and patent expirations opening generic opportunities.

What Are the Key Patents and Regulatory Status?

Prolixin's origin dates to the 1960s; its original formulation lost patent protection decades ago. Several companies now sell generics. The patent landscape remains active in formulations, drug delivery, and combination therapies. Regulatory agencies, including the FDA and EMA, acknowledge PROLIXIN as a mature drug; approval pathways for new formulations or indications are limited and typically involve supplemental New Drug Applications (sNDAs).

What Are the Competitive Dynamics and Market Drivers?

Competitive landscape features:

  • Generics dominate, holding over 80% of sales.
  • Brand names, such as Johnson & Johnson’s Clomipramine, have limited market share.
  • Biosimals and reformulated versions targeting treatment adherence have surfaced.

Market drivers include:

  • Rising prevalence of depression and OCD.
  • Growing insurance coverage and healthcare access.
  • Potential off-label uses for other psychiatric conditions.

Barriers include:

  • Side-effect profile; anticholinergic effects lead to contraindications.
  • Competition from newer antidepressants like SSRIs and SNRIs with better tolerability.

What Is the R&D and Patent Outlook?

Current R&D efforts focus on:

  • Novel delivery systems (e.g., extended-release formulations).
  • Combining PROLIXIN with adjunctive therapies.
  • Repurposing for treatment-resistant depression.

Patent filings for new formulations and combinations are ongoing but constitute a minority of activity. Existing exclusivity periods largely expired, exposing the market to generics.

How Do Price and Reimbursement Affect Investment?

Wholesale prices for branded PROLIXIN range from $2 to $4 per tablet, whereas generics are priced below $1. Reimbursement policies differ globally but generally favor generics, pressuring brand prices downward. Insurance coverage remains broad in developed markets, but payers push for cost-effective alternatives.

What Is the Outlook for Investment Returns?

In light of market maturity, the key financial considerations include:

  • Limited growth potential in established markets.
  • Marginal innovation likely necessary to sustain profitability.
  • Entry of biosimilars or new formulations could influence margins.

Returns hinge on licensing, reformulation, or geographic expansion. Investment in R&D targeting unmet needs or improving tolerability may present incremental gains. Overall, the best opportunities exist in strategic collaborations, licensing deals, and niche markets.

Key Takeaways

  • PROLIXIN operates in a saturated market with declining branded sales due to generic competition.
  • Innovation efforts focus on reformulation, combo therapies, and repurposing.
  • Revenue growth depends on geographic expansion and new indications.
  • Price erosion from generics and payer pressure limit profitability.
  • Strategic alliances offer the best path to carve out niche or emerging markets.

FAQs

1. Is PROLIXIN a good investment opportunity now?
Limited growth prospects in mature markets make it less attractive for pure revenue gain. Investment is better directed toward R&D or licensing deals focusing on reformulation or niche uses.

2. What are the key regulatory hurdles for PROLIXIN reformulation?
Regulatory agencies scrutinize bioequivalence, safety, and efficacy for new formulations. Patent challenges, particularly from generic companies, underline the importance of original innovation and strategic patent filings.

3. How does the competitive landscape affect profit margins?
Widespread generic availability compresses prices and margins. Branded companies may seek to differentiate through formulations or combination therapies, but generic competition remains fierce.

4. Are there unmet medical needs that PROLIXIN could address?
Yes. Patients intolerant to SSRIs or SNRIs might benefit from PROLIXIN's different mechanism. Its role in treatment-resistant depression warrants further exploration but faces regulatory and market entry barriers.

5. What are potential growth strategies?
Target emerging markets, expand into new indications, or develop improved formulations. Licensing or acquisition of niche patents can also create revenue streams.


Sources:

  1. MarketWatch, "Antidepressant Market Size & Forecast," 2022.
  2. FDA, Drug Approval and Labeling Database, 2023.
  3. IQVIA, "Global Pharmaceutical Market Data," 2022.
  4. PatentScope, World Intellectual Property Organization, 2023.
  5. Reports and filings from Johnson & Johnson, Teva, and other generic manufacturers.

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