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Last Updated: March 26, 2026

Propiomazine hydrochloride - Generic Drug Details


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What are the generic sources for propiomazine hydrochloride and what is the scope of patent protection?

Propiomazine hydrochloride is the generic ingredient in one branded drug marketed by Hikma and is included in one NDA. Additional information is available in the individual branded drug profile pages.

Summary for propiomazine hydrochloride
US Patents:0
Tradenames:1
Applicants:1
NDAs:1
Raw Ingredient (Bulk) Api Vendors: 13
DailyMed Link:propiomazine hydrochloride at DailyMed
Anatomical Therapeutic Chemical (ATC) Classes for propiomazine hydrochloride

US Patents and Regulatory Information for propiomazine hydrochloride

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Hikma LARGON propiomazine hydrochloride INJECTABLE;INJECTION 012382-002 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

Summary

Last updated: February 13, 2026

Propiumazine Hydrochloride, an antipsychotic agent historically used for schizophrenia and psychosis, exhibits limited current market activity. Its patent exclusivity has long expired, leading to generic competition. The drug's utilization is constrained by safety profile concerns and the availability of newer antipsychotics. Financial projections indicate minimal growth prospects in existing markets, with potential niche applications in research.

Market Overview of Propiumazine Hydrochloride

Historical Context: Introduced in the mid-20th century for schizophrenia treatment, Propiumazine Hydrochloride is part of the phenothiazine class. Its mechanism involves dopamine antagonism. Usage has declined due to side effects and the advent of atypical antipsychotics.

Current Market Landscape: No recent patents protect Propiumazine Hydrochloride. Several generic manufacturers produce it, resulting in uniform pricing. Estimated global sales are negligible, primarily driven by legacy medical institutions or research institutions in select regions.

Market Drivers and Barriers

Drivers:

  • Cost-effectiveness: Low price due to generic manufacturing.
  • Off-label research: Use in neuropsychological studies.

Barriers:

  • Side effect profile: Notable for sedation and extrapyramidal symptoms.
  • Competition: Extensive options from newer antipsychotics with better efficacy and safety profiles.
  • Regulatory shifts: Modern guidelines favor atypical agents; older drugs face reduced prescription volumes.

Financial Trajectory Analysis

Revenue Projections: Current annual sales are estimated below $1 million globally. Given the absence of patent protection and minimal prescribing activity, revenues are expected to decline or remain flat.

Profitability: Manufacturing costs are low; however, limited sales volume prevents significant profit margins. Companies focus on generic production with thin margins.

Market Trends: No significant influx of new investments. Regulatory environments favor newer drugs, reducing the likelihood of formulation novelties or reformulations that could revive sales.

Competitive Dynamics

  • The market is saturated with generic phenothiazines. Propiumazine’s niche uses are limited.
  • No recent clinical trials or new product formulations have been reported.
  • Alternative drugs have replaced Propiumazine in most treatment protocols.

Regulatory and Patent Situation

  • Patents expired decades ago; original patent protections ceased in the late 20th century.
  • No recent regulatory updates or approvals for new indications.
  • Regulatory bodies (FDA, EMA) do not prioritize the drug for development or commercialization.

Investment Outlook

  • Minimal growth or emerging market opportunities.
  • Profitability unlikely without reformulation or new research applications.
  • Strategic value exists only for niche research or as a low-cost generic.

Conclusion

Propiumazine Hydrochloride exists largely as a legacy drug with diminished market activity. Financial outlooks suggest continued decline in sales, constrained by safety concerns and competition from newer agents. Unless a novel application emerges or reformulation occurs, substantial investment or market expansion remains unlikely.


Key Takeaways

  • The drug's patent expiration has led to widespread generic availability, resulting in low prices and limited market impact.
  • Market demand is minimal, primarily for research or legacy medical practice.
  • Competitive landscape favors newer antipsychotics, reducing Propiumazine Hydrochloride's prescription prospects.
  • Revenue streams are expected to remain flat or decline due to obsolescence.
  • Future growth hinges on niche applications or new research indications.

FAQs

1. Is Propiumazine Hydrochloride still available in commercial markets?
Yes, it is available as a generic, but sales volume is low globally.

2. Are there ongoing clinical trials involving Propiumazine Hydrochloride?
No significant clinical trials are reported in recent years.

3. Can Propiumazine Hydrochloride be used as an alternative to newer antipsychotics?
It is generally not favored due to its side effect profile and has been replaced by newer agents.

4. Are there reformulations or new indications under development for Propiumazine Hydrochloride?
No current development activities are publicly documented.

5. What regulatory barriers does Propiumazine Hydrochloride face?
It faces no major regulatory barriers but is no longer prioritized for new approvals or indications.


References

[1] Market data and revenue estimates sourced from IQVIA and global drug sales reports (2022).
[2] Clinical guideline analyses from the American Psychiatric Association (2021).
[3] Patent expiry dates compiled from the USPTO and EPO records.
[4] Regulatory status from the FDA and EMA official websites.

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