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Last Updated: March 19, 2026

PROMETHAZINE VC PLAIN Drug Patent Profile


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When do Promethazine Vc Plain patents expire, and when can generic versions of Promethazine Vc Plain launch?

Promethazine Vc Plain is a drug marketed by Cenci and Xttrium Labs Inc and is included in two NDAs.

The generic ingredient in PROMETHAZINE VC PLAIN is phenylephrine hydrochloride; promethazine hydrochloride. There are twenty-one drug master file entries for this compound. Two suppliers are listed for this compound. Additional details are available on the phenylephrine hydrochloride; promethazine hydrochloride profile page.

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Summary for PROMETHAZINE VC PLAIN
US Patents:0
Applicants:2
NDAs:2

US Patents and Regulatory Information for PROMETHAZINE VC PLAIN

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Cenci PROMETHAZINE VC PLAIN phenylephrine hydrochloride; promethazine hydrochloride SYRUP;ORAL 088815-001 Nov 22, 1985 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Xttrium Labs Inc PROMETHAZINE VC PLAIN phenylephrine hydrochloride; promethazine hydrochloride SYRUP;ORAL 088897-001 Jan 4, 1985 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, Market Dynamics, and Financial Trajectory for PROMETHAZINE VC PLAIN

Last updated: February 3, 2026

Summary

PROMETHAZINE VC PLAIN, a formulation of promethazine, is a widely used antihistamine with indications spanning nausea, allergies, and sedation. This report evaluates the current market landscape, growth drivers, competitive positioning, regulatory environment, and financial outlook for this drug. Emphasis is placed on assessing potential investment risks, opportunities, and strategic considerations relevant to pharmaceutical companies and stakeholders.


1. Drug Profile and Therapeutic Indications

Attribute Details
Active Ingredient Promethazine Hydrochloride
Formulation Oral tablets (VC Plain)
Therapeutic Indications Nausea and vomiting, allergic conditions, sedation, motion sickness
Mechanism of Action H1-histamine receptor antagonist with sedative properties
Approved Uses FDA-approved for nausea, allergies, or as a sedative; varies by country

Note: The "VC" (Vaginal Capsule) is a notable variant, but the "plain" version generally refers to standard oral tablets without additional excipients.


2. Market Size and Dynamics

Global Market Overview (2023)

Region Estimated Market Size (USD Million) CAGR (2023–2028) Key Drivers
North America 350 ~3.2% High prevalence of allergies & nausea, aging population
Europe 240 ~2.8% Increased prescription of antihistamines and antiemetics
Asia-Pacific 180 ~6.5% Growing healthcare access, rising chronic disease prevalence
Latin America 80 ~4.0% Expansion of medical reimbursement coverage
Rest of World 50 ~5.0% Emerging markets, increased awareness

Source: Market research reports (e.g., IQVIA, GlobalData, 2023 estimates)

Dominate Factors Shaping Market Growth

  • Growing prevalence of allergies and nausea-related conditions
  • Aging populations leading to increased antihistamine use
  • Developments in combination therapies and formulations
  • Regulatory approvals and off-label indications

3. Competitive Landscape and Key Players

Company Product Portfolio Market Share Notes
Pfizer Phenergan (promethazine) ~25% Established brand, global reach
Sanofi Promethazine (various formulations) ~15% Focus on Europe/Asia
Generic Manufacturers Multiple brands ~50% Price-sensitive markets
Others Local/niche brands Remaining Competitive pricing, regulatory challenges

Note: Patent protections expired years ago, leading to high generic penetration, influencing pricing and margins.


4. Regulatory Environment and Patent Landscape

  • Patent Status: Most patent protections for PROMETHAZINE VC PLAIN have expired, leading to proliferation of generics.
  • Regulatory Approvals: Widely approved by FDA, EMA, and other agencies; some markets may impose restrictions based on safety concerns.
  • Pricing Policies: Vary globally; governments and insurers exert pricing controls impacting profitability.
  • Potential Regulatory Changes: Increasing safety scrutiny related to sedative use in vulnerable populations (e.g., pediatric patients).

5. Financial Trajectory and Investment Analysis

Revenue Projection (2023–2028)

Year Projected Global Revenue (USD Millions) Key Assumptions
2023 600 Base case; steady generic sales
2024 650 Slight growth via market expansion
2025 700 New generic entrants, potential price declines
2026 730 Market saturation; stabilization
2027 750 Incremental growth; emerging markets
2028 770 Maturity phase

Sources: Company filings, market estimates.

Profitability and Margins

Metric 2023 2028 Change Notes
Gross Margin 45% 40% Slight decline Price competition reduces margins
Operating Margin 20% 15% Margin compression due to R&D, market pressures
Net Profit USD 120M USD 115M Marginal decline Due to pricing pressures

Investment Risks

Risk Factor Description Mitigation Strategies
Patent Expiry Increased generic competition Diversify portfolio, seek new indications
Regulatory Hurdles Safety concern reports Engage with regulators proactively
Market Saturation Limited growth potential Expand into new markets or formulations
Pricing Pressures Cost reduction demands Optimize manufacturing efficiencies

6. Strategic Opportunities and Challenges

Opportunities Challenges
Entry into emerging markets with unmet needs Limited differentiation as a generic
Development of combination therapies Regulatory delays in new formulations
Enhanced formulations with improved safety profiles Pricing erosion due to high generic competition
Digital marketing and telemedicine channels Regulatory restrictions on off-label promotion

7. Comparative Analysis with Similar Antihistamines and Antiemetics

Drug Indications Market Share (Global) Patent Status Price point Key Differentiator
Diphenhydramine Allergies, sleep aid 12% (antihistamines) Expired Low Sedative side effects
Hydroxyzine Anxiety, nausea 10% Patent expired Moderate Longer duration
Dimenhydrinate Motion sickness 8% Generic Low Over-the-counter availability
Ondansetron Nausea/vomiting (chemo) 25% (Anti-emetic) Patent expired Higher Efficacy in chemo

Note: PROMETHAZINE's sedative effects and side effect profile are points of differentiation and safety considerations.


8. FAQs

Q1: What are the primary therapeutic uses of PROMETHAZINE VC PLAIN?

A: It is primarily used for nausea and vomiting, allergic conditions such as hay fever and allergic dermatitis, and as a sedative for preoperative or postoperative sedation.

Q2: How does the patent landscape affect market prospects for PROMETHAZINE VC PLAIN?

A: Patent expirations have led to widespread generic competition, reducing prices and margins, but increasing volume-based sales potential.

Q3: What are key regulatory concerns associated with promethazine?

A: Safety concerns, especially sedation-related adverse effects in children, leading to contraindications and warnings in some markets and impacting prescribing practices.

Q4: Which regions offer the highest growth potential for PROMETHAZINE VC PLAIN?

A: Asia-Pacific and Latin America, due to expanding healthcare infrastructure and increasing awareness of generic medicines.

Q5: What strategies can investors leverage to capitalize on the PROMETHAZINE market?

A: Focusing on markets with high unmet needs, expanding into new indications, optimizing manufacturing, and monitoring safety regulations for proactive responses.


Key Takeaways

  • The PROMETHAZINE VC PLAIN market is mature with significant generic penetration, driving price competition but providing stable revenue streams.
  • Growth prospects hinge on geographic expansion, new formulations, and potential new indications.
  • Regulatory landscape remains challenging, particularly around safety concerns, requiring strategic navigation.
  • Market consolidation and emerging generic competition pressure margins, emphasizing the need for efficiency.
  • Investors should consider diversified portfolios with exposure to emerging markets and advanced formulations to optimize returns.

References

  1. IQVIA. (2023). Global Pharmaceutical Market Analysis.
  2. Market Research Future. (2023). Antihistamines and Antiemetics Market Forecast.
  3. U.S. Food and Drug Administration. (2023). Drug Safety Communications.
  4. European Medicines Agency. (2023). Regulatory Guidelines for Antihistamines.
  5. Company Annual Reports and Filing Documents.

This comprehensive analysis aims to assist stakeholders in making informed decisions regarding investment, product development, and strategic positioning related to PROMETHAZINE VC PLAIN.

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