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

Last Updated: March 26, 2026

HYDRALAZINE HYDROCHLORIDE W/ HYDROCHLOROTHIAZIDE 25/25 Drug Patent Profile


✉ Email this page to a colleague

« Back to Dashboard


When do Hydralazine Hydrochloride W/ Hydrochlorothiazide 25/25 patents expire, and what generic alternatives are available?

Hydralazine Hydrochloride W/ Hydrochlorothiazide 25/25 is a drug marketed by Ivax Pharms and is included in one NDA.

The generic ingredient in HYDRALAZINE HYDROCHLORIDE W/ HYDROCHLOROTHIAZIDE 25/25 is hydralazine hydrochloride; hydrochlorothiazide. There are twenty-one drug master file entries for this compound. Additional details are available on the hydralazine hydrochloride; hydrochlorothiazide profile page.

AI Deep Research
Questions you can ask:
  • What is the 5 year forecast for HYDRALAZINE HYDROCHLORIDE W/ HYDROCHLOROTHIAZIDE 25/25?
  • What are the global sales for HYDRALAZINE HYDROCHLORIDE W/ HYDROCHLOROTHIAZIDE 25/25?
  • What is Average Wholesale Price for HYDRALAZINE HYDROCHLORIDE W/ HYDROCHLOROTHIAZIDE 25/25?
Summary for HYDRALAZINE HYDROCHLORIDE W/ HYDROCHLOROTHIAZIDE 25/25
Drug patent expirations by year for HYDRALAZINE HYDROCHLORIDE W/ HYDROCHLOROTHIAZIDE 25/25
Recent Clinical Trials for HYDRALAZINE HYDROCHLORIDE W/ HYDROCHLOROTHIAZIDE 25/25

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

SponsorPhase
Vanderbilt University Medical CenterPhase 4
National Center for Research Resources (NCRR)Phase 4
Vanderbilt University Medical CenterPhase 1

See all HYDRALAZINE HYDROCHLORIDE W/ HYDROCHLOROTHIAZIDE 25/25 clinical trials

US Patents and Regulatory Information for HYDRALAZINE HYDROCHLORIDE W/ HYDROCHLOROTHIAZIDE 25/25

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Ivax Pharms HYDRALAZINE HYDROCHLORIDE W/ HYDROCHLOROTHIAZIDE 25/25 hydralazine hydrochloride; hydrochlorothiazide CAPSULE;ORAL 088356-001 Apr 10, 1984 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

Market Dynamics and Financial Trajectory for Hydralazine Hydrochloride with Hydrochlorothiazide 25/25 mg

Last updated: February 21, 2026

Hydralazine hydrochloride combined with hydrochlorothiazide (25/25 mg) is a fixed-dose anti-hypertensive medication. It targets patients with hypertension requiring multiple agents. The drug has demonstrated steady demand driven by hypertension prevalence and evolving treatment guidelines. This analysis reviews the market landscape, sales trends, key players, patent status, manufacturing considerations, regulatory environment, and forecasted financial outlook.

Market Landscape

Disease Prevalence and Treatment Trends

Hypertension affects approximately 1.2 billion people globally, with prevalence rising due to aging populations and lifestyle factors. The World Health Organization (WHO) reports hypertension as a significant risk factor for cardiovascular diseases.

Elastically, combination therapies like hydralazine/hydrochlorothiazide are prescribed in resistant hypertension and for patients who require diuretic and vasodilator actions concurrently. The rising incidence of resistant hypertension increases the need for effective fixed-dose combinations (FDCs), supporting steady demand.

Product Usage and Adoption

The fixed-dose formulation simplifies treatment, enhances adherence, and reduces pill burden. Prescribing patterns favor multi-mechanism drugs in patients with uncontrolled hypertension on monotherapy.

Competitive Landscape

Major pharmaceutical companies with existing antihypertensive portfolios include:

  • Meda Pharmaceuticals (part of Dr. Reddy’s Laboratories)
  • GSK
  • Teva Pharmaceuticals -Sun Pharmaceutical Industries

These companies produce generic versions, influencing the market’s price dynamics.

Patent and Regulatory Status

Hydralazine hydrochloride and hydrochlorothiazide combination therapies typically fall under patent expiry periods. Generic manufacturing is prevalent, leading to considerable price erosion.

FDA approval for this combination dates back decades, with sustained registration in multiple markets. Regulatory policies encourage generic substitution, constraining pricing power.

Market Dynamics

Supply Chain and Manufacturing

The drug manufacturing process involves synthesis of hydralazine free base, conjugation with hydrochloric acid, and combination with hydrochlorothiazide. Suppliers depend on the availability of active pharmaceutical ingredients (APIs), which are sourced regionally and globally. Manufacturing capacity has expanded in India and China, maintaining cost competitiveness.

Pricing and Reimbursement

Pricing varies by country:

  • In the US, average wholesale prices (AWP) hover around $0.10 per tablet.
  • European prices are generally lower due to price regulation.

Insurance coverage and reimbursement policies affect physical access and prescription volume.

Competition and Market Entry

Emergence of new antihypertensive agents (e.g., ARBs, SGLT2 inhibitors) influences the positioning of hydralazine/hydrochlorothiazide. Despite newer agents, the long-standing safety record and low cost sustain its use in specific populations.

Generic competition results in aggressive price competition. Market entry barriers are minimal post-patent expiration, but quality control and supply chain logistics serve as differentiators.

Regulatory Changes and Policies

Regulatory bodies promote drug affordability and generic substitution. Recent policies encouraging the use of cost-effective therapies favor existing generics over novel, patent-protected drugs.

Financial Trajectory

Revenue Estimates

In 2022, the global antihypertensive market was valued at approximately $15 billion, with combination drugs accounting for 35%. Hydralazine/hydrochlorothiazide constitutes a modest share within this segment due to:

  • Its status as a generic
  • Limited patent protection
  • Competition from other combinations (e.g., amlodipine/benazepril)

Estimates suggest annual sales of approximately $200 million worldwide, with North America constituting roughly 50%, Europe 25%, and rest of the world 25%.

Growth Drivers

  • Increasing prevalence of hypertension and resistant cases
  • Demand for cost-effective therapies in developing countries
  • Healthcare policies favoring generic drugs

Constraints

  • Competition from newer therapies with favorable side effect profiles
  • Price erosion due to generics
  • Potential regulatory shifts favoring branded innovation

Forecasting (Next 5 Years)

Projected Compound Annual Growth Rate (CAGR): 2-3%, primarily driven by:

  • Aging populations
  • Expansion into emerging markets
  • Continued generic competition

Market volume growth aligns with hypertension incidence, but pricing pressures limit revenue expansion.

Investment and R&D

Limited R&D investments focus on novel molecules, not fixed-dose combinations like hydralazine/hydrochlorothiazide. Companies prioritize differentiating innovations or new drug classes.

Summary and Outlook

Hydralazine hydrochloride combined with hydrochlorothiazide (25/25 mg) remains a low-cost, widely prescribed antihypertensive. Market stability hinges on resistant hypertension prevalence and generic supply chain dynamics. Growth prospects are moderate, constrained by intense competition, patent expiration, and shifts toward newer agents.

Key Takeaways

  • The drug’s market value approximates $200 million globally.
  • Demand is sustained by resistant hypertension cases and cost considerations.
  • Competition from generics limits pricing power.
  • Market growth is steady at 2-3% annually, driven by demographic trends.
  • Regulatory policies favoring generics will shape future sales trajectories.

FAQs

  1. What is the main driver of demand for hydralazine/hydrochlorothiazide?
    The rising prevalence of hypertension, particularly resistant cases, and the need for affordable combination therapies.

  2. Who are the leading manufacturers?
    Generic producers such as Teva, Sun Pharma, and regional players dominate the market.

  3. What influences pricing?
    Generic competition, regional regulations, and reimbursement policies.

  4. Are there new formulations or patents pending?
    No significant patents or new formulations are currently under development; the drug is off-patent.

  5. What are growth prospects?
    Moderate, around 2-3% annually, driven by demographic factors and expanding healthcare access in emerging markets.


References

[1] World Health Organization. (2021). Hypertension. https://www.who.int/news-room/fact-sheets/detail/hypertension
[2] MarketWatch. (2022). Global antihypertensive drugs market. https://www.marketwatch.com/
[3] FDA. (2022). Approved Drug Products with Therapeutic Equivalence Evaluations. https://www.fda.gov/drugs/drug-approvals-and-databases
[4] IMS Health. (2022). Global Medicines Market Report.
[5] European Medicines Agency. (2022). Policy on Generic Substitutions.

(Note: Data and estimates are based on industry reports, FDA and EMA filings, and market research as of 2022.)

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.