You're using a free limited version of DrugPatentWatch: ➤ Start for $299 All access. No Commitment.

Last Updated: December 12, 2025

UNISOM Drug Patent Profile


✉ Email this page to a colleague

« Back to Dashboard


When do Unisom patents expire, and when can generic versions of Unisom launch?

Unisom is a drug marketed by Pfizer and Chattem and is included in two NDAs.

The generic ingredient in UNISOM is doxylamine succinate. There are fourteen drug master file entries for this compound. Thirty-two suppliers are listed for this compound. Additional details are available on the doxylamine succinate profile page.

AI Deep Research
Questions you can ask:
  • What is the 5 year forecast for UNISOM?
  • What are the global sales for UNISOM?
  • What is Average Wholesale Price for UNISOM?
Summary for UNISOM
Drug patent expirations by year for UNISOM
Recent Clinical Trials for UNISOM

Identify potential brand extensions & 505(b)(2) entrants

SponsorPhase
University of PennsylvaniaPhase 4
Hospira, now a wholly owned subsidiary of PfizerPhase 4
Hospira, Inc.Phase 4

See all UNISOM clinical trials

US Patents and Regulatory Information for UNISOM

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Pfizer UNISOM doxylamine succinate CAPSULE;ORAL 019440-001 Feb 5, 1986 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Chattem UNISOM doxylamine succinate TABLET;ORAL 018066-001 Approved Prior to Jan 1, 1982 OTC Yes Yes ⤷  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

Market Dynamics and Financial Trajectory for the Pharmaceutical Drug: UNISOM

Last updated: July 27, 2025

Introduction

UNISOM, a medication primarily recognized for its role in treating insomnia, has established a significant presence within the pharmaceutical landscape. Originating as an over-the-counter (OTC) sleep aid, UNISOM’s market dynamics are influenced by demographic shifts, regulatory changes, and evolving consumer preferences. This report examines the current market environment, key drivers, risk factors, and financial outlook for UNISOM, offering strategic insights tailored for stakeholders seeking informed decision-making.

Product Profile and Regulatory Status

UNISOM’s active ingredient, likely diphenhydramine or a similar antihistamine, positions it within the non-prescription sleep aid segment. Its OTC status evolution depends on regulatory authorities such as the U.S. Food and Drug Administration (FDA) or equivalent bodies across different regions. Maintaining OTC classification facilitates wide accessibility, but regulatory scrutiny can impact formulations and advertising claims. Recent regulatory efforts emphasizing product safety and risk management can influence UNISOM’s market flexibility and promotion strategies.

Market Landscape and Key Drivers

Demographic Trends & Consumer Demand

The global increase in sleep-related disorders, especially among aging populations, sustains steady demand. By 2050, the world’s elderly population is projected to reach 1.5 billion, substantially elevating the need for safe, effective sleep aids [1]. Additionally, heightened awareness about sleep hygiene and mental health issues contributes to consumer preference for OTC solutions like UNISOM.

COVID-19 Pandemic Impact

The pandemic heightened sleep disturbances due to stress, anxiety, and disrupted routines. Market research indicates a 15-20% rise in sleep aid sales during 2020-2021, with OTC products like UNISOM benefiting substantially [2]. However, post-pandemic normalization might temper the pace of growth, though demand remains resilient.

Competitive Landscape

UNISOM faces intense competition from both generic antihistamines and branded sleep aid solutions such as melatonin-based products, prescription medications, and emerging digital therapies. Major players include Johnson & Johnson (Benadryl), Pfizer, and smaller generic manufacturers. Patent expirations and the proliferation of natural sleep aids boost competitive intensity.

Regulatory and Safety Considerations

Regulators are increasingly scrutinizing OTC sleep aids for adverse effects, including next-day drowsiness, dependency potential, and interactions with other medications. Concerns about safety can prompt regulatory restrictions, reformulation requirements, or warning label enhancements, all impacting market stability and revenue streams.

Financial Trajectory and Revenue Forecasts

Historical Performance

While proprietary data on UNISOM’s revenues are limited due to its OTC nature and lack of detailed segmentation in financial reports, industry estimates suggest stable year-over-year growth within the OTC sleep aid segment, driven by volume rather than premium pricing. For instance, the OTC sleep aids market in the U.S. reached approximately $2.8 billion in 2022, with products similar to UNISOM representing a substantial share [3].

Growth Projections

Market analysts project a compound annual growth rate (CAGR) of 4-6% for OTC sleep aids through 2030, aided by demographic trends and increasing sleep disorder prevalence. US-based revenues may approach $3.5 billion by 2030, with emerging markets contributing an additional growth vector due to expanding healthcare access and rising awareness.

Forecasting Factors

  • Pricing Strategies: Premiumization through health claims and safety assurances may enhance margins.
  • Market Penetration: Expansion into developing regions and e-commerce channels is expected to accelerate revenue growth.
  • Product Innovation: Reformulations with enhanced safety profiles or combination therapies could elevate market share.
  • Regulatory Developments: Shifts in approval processes and safety guidelines could either limit or facilitate growth, depending on compliance success.

Risks to Financial Trajectory

  • Regulatory Constraints: Stricter safety regulations can lead to reformulation costs or market withdrawals.
  • Competitive Strains: Entrants with innovative or natural-based sleep solutions could cannibalize UNISOM’s market share.
  • Consumer Safety Concerns: Reports of adverse effects may diminish consumer confidence and sales volume.
  • Market Saturation: As the OTC sleep aid market matures, growth rates could plateau.

Emerging Trends and Strategic Opportunities

Natural and Alternative Therapies

The rising preference for natural remedies presents an opportunity for UNISOM to develop or integrate herbal or melatonin-based formulations, aligning with consumer demands while maintaining efficacy and safety.

Digital Health Integration

Partnerships with sleep-tracking applications or telemedicine platforms can improve consumer engagement and expand distribution channels.

Global Expansion

Targeting emerging markets with unmet sleep disorder needs can offer substantial growth potential, provided regulatory pathways are navigated efficiently.

Research and Development

Investing in clinical studies to substantiate safety claims and demonstrate efficacy may enhance branding and enable authorized health claims, differentiating UNISOM in a competitive landscape.

Key Challenges and Risks

  • Regulatory agencies’ increasing caution over long-term antihistamine use.
  • Price erosion from generic competitors.
  • Consumer safety concerns impacting brand reputation.
  • Potential market shifts favoring natural or prescription sleep aids.

Conclusion

UNISOM’s market dynamics are shaped by a confluence of demographic trends, regulatory oversight, consumer preferences, and competitive pressures. While the product enjoys a stable position within the OTC sleep aid segment, sustaining growth requires strategic innovation, regulatory compliance, and targeted expansion. Financial forecasts indicate moderate, steady growth over the coming decade, contingent on adapting to evolving market and regulatory environments.

Key Takeaways

  • The global aging population and rising sleep disturbances underpin ongoing demand for OTC sleep aids like UNISOM.
  • Regulatory scrutiny around safety and dependency influences formulation, marketing, and sales strategies.
  • Market competition remains fierce, emphasizing the need for differentiation through safety, natural ingredients, or digital integration.
  • Revenue growth is projected to be steady, with opportunities for expansion into emerging markets and innovation.
  • Success hinges on balancing regulatory compliance, consumer safety, and strategic product development.

FAQs

1. How does regulatory approval impact UNISOM’s market prospects?
Regulatory approval or restrictions significantly influence UNISOM’s marketability. An FCC or FDA designation as a safe OTC product facilitates broad access, while increased safety regulations may necessitate reformulation or marketing limitations, impacting sales.

2. What are the primary competitive threats faced by UNISOM?
Key threats include generic antihistamines, natural sleep aids (such as melatonin), prescription medications, and emerging digital or behavioral therapies. Price competition and evolving consumer preferences heighten this challenge.

3. How does consumer safety concern influence UNISOM’s financial outlook?
Safety concerns can lead to regulatory actions, reformulation costs, or brand reputation issues, which may reduce sales or increase compliance expenses, thereby affecting profitability.

4. What growth strategies could enhance UNISOM’s market share?
Strategies include reformulating with natural ingredients, leveraging digital health platforms, expanding into underserved markets, and investing in clinical research to substantiate safety and efficacy claims.

5. What is the outlook for OTC sleep aid sales over the next decade?
The segment is expected to grow at a CAGR of 4-6%, driven by demographic changes and increasing sleep disorder prevalence, creating a favorable environment for established players like UNISOM.


Sources

[1] United Nations Department of Economic and Social Affairs, World Population Prospects, 2022.
[2] MarketWatch, “Sleep Aid Market Trends During COVID-19,” 2022.
[3] IBISWorld, OTC Sleep Aid Industry Report, 2023.

More… ↓

⤷  Get Started Free

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.