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Last Updated: April 23, 2025

Phenothiazine Drug Class List


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Drugs in Drug Class: Phenothiazine

ApplicantTradenameGeneric NameDosageNDAApproval DateTETypeRLDRSPatent No.Patent ExpirationProductSubstanceDelist Req.Exclusivity Expiration
Alembic CHLORPROMAZINE HYDROCHLORIDE chlorpromazine hydrochloride TABLET;ORAL 217350-001 Jul 18, 2023 AB RX No No ⤷  Try for Free ⤷  Try for Free ⤷  Try for Free
Appco CHLORPROMAZINE HYDROCHLORIDE chlorpromazine hydrochloride TABLET;ORAL 213590-001 Aug 31, 2020 AB RX No No ⤷  Try for Free ⤷  Try for Free ⤷  Try for Free
Appco CHLORPROMAZINE HYDROCHLORIDE chlorpromazine hydrochloride TABLET;ORAL 213590-002 Aug 31, 2020 AB RX No No ⤷  Try for Free ⤷  Try for Free ⤷  Try for Free
Glenmark Pharms Ltd CHLORPROMAZINE HYDROCHLORIDE chlorpromazine hydrochloride TABLET;ORAL 212144-004 Mar 23, 2021 AB RX No No ⤷  Try for Free ⤷  Try for Free ⤷  Try for Free
Msn CHLORPROMAZINE HYDROCHLORIDE chlorpromazine hydrochloride TABLET;ORAL 214827-001 Jan 27, 2022 AB RX No No ⤷  Try for Free ⤷  Try for Free ⤷  Try for Free
Zydus Lifesciences CHLORPROMAZINE HYDROCHLORIDE chlorpromazine hydrochloride TABLET;ORAL 213368-002 Jan 17, 2020 AB RX No No ⤷  Try for Free ⤷  Try for Free ⤷  Try for Free
Zydus Lifesciences CHLORPROMAZINE HYDROCHLORIDE chlorpromazine hydrochloride TABLET;ORAL 213368-003 Jan 17, 2020 AB RX No No ⤷  Try for Free ⤷  Try for Free ⤷  Try for Free
>Applicant>Tradename>Generic Name>Dosage>NDA>Approval Date>TE>Type>RLD>RS>Patent No.>Patent Expiration>Product>Substance>Delist Req.>Exclusivity Expiration
Showing 1 to 7 of 7 entries

Phenothiazine Market Analysis and Financial Projection

The Phenothiazine drug class, known for its antipsychotic properties and diverse industrial applications, exhibits dynamic market growth and a complex patent landscape. Here's a detailed analysis:


Market Dynamics

Growth Drivers

  • Mental Health Demand: The global antipsychotic drugs market, valued at $17 billion in 2022, is projected to reach $29.5 billion by 2032 (CAGR 5.8%)[11]. Phenothiazines remain crucial in treating schizophrenia, psychosis, and anxiety disorders, with drugs like trifluoperazine expected to grow to $3.17 billion by 2030[6].
  • Pharmaceutical Expansion: The tranquilizer drugs market, including phenothiazine derivatives, is forecasted to hit $3.22 billion by 2034 (CAGR 3.6%)[3]. North America dominates due to advanced healthcare infrastructure, while Asia-Pacific shows rapid growth from rising healthcare investments[11][9].
  • Versatile Applications: Beyond mental health, phenothiazines are used in veterinary medicine, organic synthesis, and as antioxidants in polymers[4][7][9]. These niches contribute to steady demand.

Key Challenges

  • Regulatory Scrutiny: Stringent safety and efficacy standards for pharmaceuticals require significant R&D investment[9][12].
  • Generic Competition: Expired patents (e.g., promethazine hydrochloride) have led to cost pressures, though generics improve accessibility[8][6].
  • Market Fragmentation: Competition thrives among players like Syensqo, IGM Resins, and Taixing Fuan, with innovation and cost-efficiency as differentiators[1][9].

Regional Insights

  • North America: Holds 45% revenue share in antipsychotics, driven by high mental health prevalence[11].
  • Asia-Pacific: Fastest-growing region due to expanding pharmaceutical sectors in China and India[9][15].
  • Europe: Focus on sustainability and green chemistry influences production methods[15].

Patent Landscape

Key Innovations

  1. Formulation Improvements:

    • US6485750 (2002): Prill-form phenothiazine reduces dust and enhances solubility[2].
    • EP1765797A1: Derivatives for diabetes treatment and contraceptives highlight therapeutic diversification[14].
  2. Therapeutic Expansions:

    • US9504692 (2017): Phenothiazine derivatives target MALT1 protease in cancers[5].
    • US8796448 (2014): Azetidinyl phenothiazines for Alzheimer’s disease[5].
    • US4855424A: Antioxidant applications in industrial polymers[16].
  3. Synthesis Methods:

    • US3004028A (1961): Early methods for phenothiazine production[18].
    • US2530451A (1950): Anti-histaminic derivatives[10].

Strategic Trends

  • Collaborative R&D: Partnerships between pharma companies and academia drive novel applications (e.g., ribosomal disorders by CAMP4 Therapeutics)[17].
  • Patent Disputes: Sanofi’s attempts to monopolize isoniazid/rifapentine combinations faced global opposition, underscoring competitive IP strategies[12].
  • Expired Patents: Older formulations (e.g., promethazine) now face generic competition, reducing prices[8][6].

Emerging Opportunities

  • Green Chemistry: Eco-friendly synthesis methods align with sustainability trends[15].
  • Telemedicine: Remote mental health services expand market reach[11].
  • Neurodegenerative Diseases: Recent patents target Alzheimer’s and Parkinson’s[5][17].

Market Segmentation

Category Details Examples
By Application Antipsychotics, veterinary drugs, polymerization inhibitors[7][9] Trifluoperazine, chlorpromazine[6][7]
By Form Tablets (1–10 mg), syrup, prill formulations[2][6] Trifluoperazine tablets ($68/100)[6]
By Region North America (45% share), Asia-Pacific (highest CAGR)[9][11] Syensqo (US), Taixing Fuan (China)[1]

Future Outlook

  • Growth Projections: The phenothiazine market is expected to expand through 2030, fueled by mental health needs and industrial applications[1][15].
  • Innovation Focus: R&D prioritizes reduced side effects, novel drug delivery systems, and non-psychiatric applications[5][14].
  • Regulatory Impact: Compliance with evolving safety standards will shape competitive dynamics[4][12].

"Phenothiazines' versatility ensures their relevance across pharmaceuticals and industrial chemistry, but navigating IP challenges and generics remains critical." – Market Research Future[3].


Key Takeaways

  • Phenothiazines drive a multi-billion-dollar market, led by antipsychotic demand.
  • Patent strategies balance formulation improvements with therapeutic diversification.
  • Sustainability and telemedicine are emerging growth levers.

FAQs
Q: What are phenothiazines primarily used for?
A: Treatment of schizophrenia, anxiety, and as veterinary antiparasitics[7][4].

Q: Which companies lead the phenothiazine market?
A: Syensqo, IGM Resins, and GlaxoSmithKline[1][9].

Q: How do patents influence market competition?
A: Expired patents allow generics, while new patents protect novel formulations/therapies[6][17].

Q: What regions show the highest growth potential?
A: Asia-Pacific, due to pharmaceutical sector expansion[9][15].

Q: Are phenothiazines used outside medicine?
A: Yes, as antioxidants in polymers and agrochemical intermediates[7][15].

References

  1. https://www.researchandmarkets.com/report/phenothiazine
  2. https://patents.justia.com/patent/6485750
  3. https://www.marketresearchfuture.com/reports/tranquilizer-drugs-market-21718
  4. https://ntp.niehs.nih.gov/sites/default/files/ntp/htdocs/chem_background/exsumpdf/phenothiazine_508.pdf
  5. https://patents.justia.com/patents-by-us-classification/544/35
  6. https://www.drugpatentwatch.com/p/drug-price/drugname/TRIFLUOPERAZINE
  7. https://en.wikipedia.org/wiki/Phenothiazine
  8. https://www.drugpatentwatch.com/p/generic/promethazine+hydrochloride
  9. https://markwideresearch.com/phenothiazine-market/
  10. https://patents.google.com/patent/US2530451A/en
  11. https://market.us/report/antipsychotic-drugs-market/
  12. https://www.treatmentactiongroup.org/publication/isoniazid-rifapentine-3hp-access-roadmap-and-patent-landscape/
  13. https://www.cognitivemarketresearch.com/antiemetic-drugs-market-report
  14. https://patents.google.com/patent/EP1765797A1/en
  15. https://pmarketresearch.com/product/worldwide-2-cyano-phenothiazine-market-research-2024-by-type-application-participants-and-countries-forecast-to-2030/
  16. https://patents.google.com/patent/US4855424A/en
  17. https://patents.justia.com/assignee/camp4-therapeutics-corporation
  18. https://patents.google.com/patent/US3004028A/en

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