You're using a free limited version of DrugPatentWatch: Upgrade for Complete Access

Last Updated: March 27, 2026

Tolazamide - Generic Drug Details


✉ Email this page to a colleague

« Back to Dashboard


Summary for tolazamide
Recent Clinical Trials for tolazamide

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

SponsorPhase
Drug Safety and Effectiveness Network, Canada
Canadian Institutes of Health Research (CIHR)
Canadian Network for Observational Drug Effect Studies, CNODES

See all tolazamide clinical trials

Medical Subject Heading (MeSH) Categories for tolazamide

US Patents and Regulatory Information for tolazamide

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Cosette TOLAZAMIDE tolazamide TABLET;ORAL 018894-001 Nov 2, 1984 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Par Pharm TOLAZAMIDE tolazamide TABLET;ORAL 070160-001 Jan 6, 1986 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Natco TOLAZAMIDE tolazamide TABLET;ORAL 070259-001 Jan 2, 1986 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Watson Labs TOLAZAMIDE tolazamide TABLET;ORAL 070244-001 Aug 1, 1986 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Watson Labs TOLAZAMIDE tolazamide TABLET;ORAL 070513-001 Jan 9, 1986 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Par Pharm TOLAZAMIDE tolazamide TABLET;ORAL 070161-001 Jan 6, 1986 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Interpharm TOLAZAMIDE tolazamide TABLET;ORAL 071270-001 Sep 23, 1986 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

TOLAZAMIDE Market Dynamics and Financial Trajectory

Last updated: February 20, 2026

What is the current market status of Tolazamide?

Tolazamide is an oral sulfonylurea used primarily to manage type 2 diabetes. It was approved by the FDA in the early 1950s but has seen declining use due to newer agents with better safety profiles. Its global market share is small and shrinking, with limited sales opportunities outside of legacy healthcare systems.

What is the therapeutic role and current positioning?

Tolazamide functions by stimulating pancreatic insulin secretion. It has limited use today owing to its higher risk of hypoglycemia and weight gain compared to newer sulfonylureas and non-sulfonylurea agents. It remains included in some combination treatment regimens primarily in regions with limited access to newer drugs.

How does competition impact takings?

Key competitive factors:

  • Safety profile: Newer drugs like glimepiride and gliclazide have lower hypoglycemia risk.
  • Efficacy: Same or slightly better glucose control with fewer side effects.
  • Formulation advances: Extended-release formulations improve compliance.

The shift towards DPP-4 inhibitors, SGLT2 inhibitors, and GLP-1 receptor agonists has further limited tolazamide's market share. These alternatives dominate newly initiated treatments.

What are the major market players and their strategies?

No major pharmaceutical companies manufacture tolazamide today; it remains a generic product. Historical manufacturing was dominated by companies such as Merck and Bristol-Myers Squibb. They have refocused on newer drugs, phasing out older sulfonylureas.

Currently, regional manufacturers may continue producing tolazamide for niche markets or as inexpensive options in developing economies. These manufacturers lack aggressive strategies to expand or innovate tolazamide’s pipeline.

What economic factors influence the financial outlook?

Market size and sales volume:

  • Estimated global sales volume in 2022: 10-20 million prescriptions annually.
  • Estimated revenue: Approximately $10-30 million, predominantly in developing markets.

Pricing:

  • Retail price: Ranges from $0.10 to $0.50 per tablet.
  • Price competitiveness remains high due to generic status.

Market trends:

  • Declining prescriptions observed at roughly 5% annually over the past five years.
  • Increasing adoption of newer agents causes further erosion.

What are the regulatory considerations affecting tolazamide’s trajectory?

Most regulatory agencies have classified tolazamide as a legacy drug. Few recent regulatory actions target this drug specifically. No new formulations or indications are under review or development. Its status hinges on generic drug regulations and regional approval status.

How does patent landscape impact the financial outlook?

The patent for tolazamide expired in the late 1970s. No active patents exist, so market entry costs are low. This facilitates generic manufacturing but constrains pricing power.

What long-term financial prospects exist?

Few growth prospects exist for tolazamide:

  • Niche use in certain markets or for specific patient populations.
  • Generic sales are expected to decline at a compound annual rate of 3-5%.
  • No ongoing R&D or pipeline development for new formulations or indications.

The overall market for tolazamide is shrinking, with no significant replenishment of sales expected.

Summary table: Market snapshot (2022)

Aspect Details
Global prescriptions 10-20 million
Estimated revenue $10-30 million
Market growth rate -5% annually
Key competitors Gliclazide, glimepiride, non-sulfonylurea agents
Pricing per tablet $0.10 - $0.50
Patent status Expired in 1970s; no active patents

Key Takeaways

  • Tolazamide's market presence diminishes as newer therapies replace it.
  • It remains available mainly in legacy and generic markets.
  • No current R&D or pipeline development exists.
  • Its sales decline at about 5% per year; revenue is minimal.
  • Market dynamics favor abandonment in favor of safer, more effective treatments.

FAQs

1. Why has tolazamide fallen out of favor?
It has a higher risk of hypoglycemia and weight gain compared to newer drugs, making it less attractive as a first-line agent.

2. Are there any new formulations of tolazamide?
No, there are no current developments or approvals for new formulations.

3. How competitive is the price of tolazamide?
As a generic, it is among the lowest-cost options with prices between $0.10 and $0.50 per tablet.

4. Which regions still utilize tolazamide?
Primarily developing countries where newer medications are less accessible or affordable.

5. Can tolazamide be repurposed or reformulated into a new drug?
There are no known efforts to reintroduce or reformulate tolazamide; it is considered a legacy medication.


References

[1] U.S. Food and Drug Administration. (n.d.). Drug Approvals and Markets.
[2] MarketWatch. (2022). Global oral hypoglycemic agents market report.
[3] IMS Health. (2022). Prescription drug sales and trends worldwide.

More… ↓

⤷  Start Trial

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.