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Last Updated: December 22, 2024

OXYPHENBUTAZONE - Generic Drug Details


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What are the generic sources for oxyphenbutazone and what is the scope of freedom to operate?

Oxyphenbutazone is the generic ingredient in two branded drugs marketed by Watson Labs and Novartis, and is included in two NDAs. Additional information is available in the individual branded drug profile pages.

There is one drug master file entry for oxyphenbutazone.

Summary for OXYPHENBUTAZONE
Recent Clinical Trials for OXYPHENBUTAZONE

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

SponsorPhase
Federal University of São PauloPhase 4
Fundação de Amparo à Pesquisa do Estado de São PauloPhase 4

See all OXYPHENBUTAZONE clinical trials

Medical Subject Heading (MeSH) Categories for OXYPHENBUTAZONE

US Patents and Regulatory Information for OXYPHENBUTAZONE

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Watson Labs OXYPHENBUTAZONE oxyphenbutazone TABLET;ORAL 088399-001 Sep 17, 1984 DISCN No No ⤷  Subscribe ⤷  Subscribe ⤷  Subscribe
Novartis TANDEARIL oxyphenbutazone TABLET;ORAL 012542-004 Sep 3, 1982 DISCN No No ⤷  Subscribe ⤷  Subscribe ⤷  Subscribe
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

OXYPHENBUTAZONE Market Analysis and Financial Projection Experimental

Market Dynamics and Financial Trajectory for Oxyphenbutazone

Introduction

Oxyphenbutazone, a nonsteroidal anti-inflammatory drug (NSAID), was once used for the symptomatic relief of musculoskeletal pain. However, its market presence and financial trajectory have been significantly impacted by various factors, including safety concerns and regulatory actions.

Historical Use and Approval

Oxyphenbutazone was introduced in the mid-20th century as a treatment for musculoskeletal pain. It belonged to the class of butylpyrazolidines and was used alongside other NSAIDs like phenylbutazone[1][4].

Safety Concerns and Regulatory Actions

The drug's use was marred by severe safety concerns, particularly regarding bone marrow suppression. In Canada, oxyphenbutazone was withdrawn from the market in March 1985 due to these adverse effects[1].

Market Withdrawal

The withdrawal from the Canadian market was a significant blow to the drug's global presence. In other regions, similar restrictions were imposed. For example, in the UK, the product license for oxyphenbutazone was restricted to the treatment of ankylosing spondylitis for hospital use only, and later, the 100 mg tablets were withdrawn from the market for commercial reasons[4].

Impact on Sales and Revenue

The peak use of oxyphenbutazone in the USA was in 1974, with 14 million prescriptions issued. However, by 1984, this number had drastically reduced to 2 million prescriptions. This decline was largely due to the safety concerns and subsequent regulatory restrictions[4].

Pharmacokinetics and Toxicity

Studies on the pharmacokinetics of oxyphenbutazone, particularly in equine models, showed high plasma concentrations compared to tissue concentrations, indicating potential toxicity issues. These findings further supported the decision to limit its use[4].

Financial Trajectory

Given the significant decline in prescriptions and the eventual withdrawal from several markets, the financial trajectory of oxyphenbutazone has been negative. The drug's revenue plummeted as it lost market share to safer alternatives.

Comparison with Other NSAIDs

Oxyphenbutazone's financial performance can be contrasted with other NSAIDs that have maintained or grown their market presence. For instance, newer NSAIDs like meloxicam and celecoxib have seen continued use and revenue growth due to their better safety profiles and efficacy[2].

Current Market Status

Today, oxyphenbutazone is no longer commonly used for the symptomatic relief of musculoskeletal pain. Its market status is largely relegated to historical context, with no significant current financial activity associated with the drug.

Lessons Learned

The case of oxyphenbutazone highlights the critical importance of drug safety and regulatory compliance in the pharmaceutical industry. Drugs with severe adverse effects can quickly lose market traction and financial viability, underscoring the need for rigorous testing and monitoring.

Impact on Pharmaceutical Research

The experience with oxyphenbutazone has influenced pharmaceutical research, emphasizing the importance of early detection of adverse effects and the development of safer alternatives. This has driven the industry towards more stringent safety protocols and the exploration of new therapeutic targets[2].

Conclusion

Oxyphenbutazone's market dynamics and financial trajectory were severely impacted by safety concerns and regulatory actions. The drug's withdrawal from several markets and the decline in its use have rendered it a historical footnote in the pharmaceutical industry.

Key Takeaways

  • Oxyphenbutazone was withdrawn from several markets due to safety concerns.
  • The drug's use declined significantly following regulatory restrictions.
  • Safety issues, particularly bone marrow suppression, were key factors in its market decline.
  • The pharmaceutical industry has learned from oxyphenbutazone's case, emphasizing the importance of safety and regulatory compliance.
  • Newer NSAIDs with better safety profiles have taken over the market share.

FAQs

  1. Why was oxyphenbutazone withdrawn from the market? Oxyphenbutazone was withdrawn from the market due to concerns regarding bone marrow suppression and other severe adverse effects.

  2. What was the peak year for oxyphenbutazone prescriptions in the USA? The peak year for oxyphenbutazone prescriptions in the USA was 1974, with 14 million prescriptions issued.

  3. How did the pharmacokinetics of oxyphenbutazone contribute to its toxicity? Studies showed that oxyphenbutazone had high plasma concentrations compared to tissue concentrations, indicating potential toxicity issues.

  4. What impact did regulatory actions have on oxyphenbutazone's financial trajectory? Regulatory actions, including market withdrawals and restrictions, significantly reduced the drug's revenue and market presence.

  5. What lessons has the pharmaceutical industry learned from oxyphenbutazone? The industry has learned the importance of early detection of adverse effects and the development of safer alternatives, leading to more stringent safety protocols.

Sources

  1. DrugBank - Oxyphenbutazone: Uses, Interactions, Mechanism of Action
  2. MDPI - Computational Insights on the Potential of Some NSAIDs for Treating COVID-19: Priority Set and Lead Optimization
  3. Baron Capital Group - A Multi-Billion-Dollar Drug Market
  4. INRAE - Pharmacokinetics, pharmacodynamics, metabolism, toxicology and carcinogenicity of phenylbutazone and oxyphenbutazone in horses.

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