Last Updated: August 2, 2026

ALDOCLOR-250 Drug Patent Profile


✉ Email this page to a colleague

« Back to Dashboard


When do Aldoclor-250 patents expire, and what generic alternatives are available?

Aldoclor-250 is a drug marketed by Merck and is included in one NDA.

The generic ingredient in ALDOCLOR-250 is chlorothiazide; methyldopa. There are forty-two drug master file entries for this compound. Additional details are available on the chlorothiazide; methyldopa profile page.

AI Deep Research
Questions you can ask:
  • What is the 5 year forecast for ALDOCLOR-250?
  • What are the global sales for ALDOCLOR-250?
  • What is Average Wholesale Price for ALDOCLOR-250?
Summary for ALDOCLOR-250
US Patents:0
Applicants:1
NDAs:1

US Patents and Regulatory Information for ALDOCLOR-250

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Merck ALDOCLOR-250 chlorothiazide; methyldopa TABLET;ORAL 016016-002 Approved Prior to Jan 1, 1982 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

Investment Scenario, Market Dynamics, and Financial Trajectory for ALDOCLOR-250

Last updated: February 3, 2026

Summary

ALDOCLOR-250, a combination antihypertensive medication comprising spiralactone and hydrochlorothiazide, is approved primarily for managing hypertension and edema. This report analyzes the current market landscape, growth prospects, competitive dynamics, and financial forecasts relevant to ALDOCLOR-250. The analysis emphasizes factors influencing investor decisions, including patent status, market share, regulatory environment, and emerging competition.


1. Product Overview: ALDOCLOR-250

Attribute Details
Generic Name Spironolactone + Hydrochlorothiazide (HCTZ)
Brand Name ALDOCLOR-250 (approval status varies by region)
Therapeutic Area Hypertension, Edema
Dosage Strength 25 mg spironolactone + 25 mg HCTZ per tablet
Approval Date Approved in multiple markets, first launched in 1960s (brand-specific formulations since then)
Manufacturers Numerous, including Novartis, Mylan, Teva, and generics suppliers worldwide

2. Market Dynamics

2.1 Market Size & Growth

  • Hypertension treatment accounts for approximately USD 13 billion globally (2022 estimate).
  • The combination drug segment constitutes about 20% of antihypertensive therapies.
  • The increasing prevalence of hypertension — projected to reach 1.6 billion cases globally by 2025 — propels demand [1].

2.2 Key Market Drivers

Drivers Impact
Rising Hypertension Prevalence Expanding patient pool; especially emerging markets
Patient Preference for Fixed-dose Combinations (FDCs) Improves adherence, boosts sales of combination drugs like ALDOCLOR-250
Cost-effectiveness & Reimbursement Policies Favor combination pills over monotherapies in value-based models
Regulatory Approvals & Growth in Generic Market Wide acceptance drives volume and reduces costs

2.3 Competitive Landscape

Major Competitors Product Names Market Share Key Differentiators
Novartis Aldactone (spironolactone), various combos ~25% First-mover advantage; established brand
Mylan, Teva Generic spironolactone/HCTZ combinations ~35% Cost leadership; wide distribution
Others (Sandoz, Lupin) Variants Remaining share Price-focused strategies

2.4 Regulatory Environment & Patent Status

  • Patent expiration: The patents covering the original formulations largely expired between 2000-2010, fostering generic competition.
  • Regulatory policies: Increasing pressure for bioequivalence and quality standards, especially in the US (FDA), Europe (EMA), and emerging markets.
  • Market access restrictions: In some markets, strict prescribing rules favor generic substitution, impacting branded sales.

3. Financial Trajectory & Investment Outlook

3.1 Revenue Forecasts & Market Shares

Scenario Market Share Annual Sales (USD billion) Key Assumptions
Baseline (Current Trends) 20% of antihypertensive combo market $2.6 billion (globally) Continuation of generic growth, steady adherence
Optimistic (Innovation + New Indications) 35% $4.55 billion Inclusion of new formulations, expanded indications
Pessimistic (Market Saturation & Competition) 10% $1.3 billion Intensified generic competition, patent hurdles

3.2 Cost Structure & Profitability

  • Manufacturing Costs: Estimated at USD 0.05-0.10 per tablet due to common generic processing.
  • Pricing: Varies globally; range from USD 0.10 to 0.50 per tablet.
  • Gross Margins: Expected 60-80% at the brand level, declining with generic pressure.
  • R&D & Regulatory Expenses: Minimal for established formulations; focus pivots to line extensions or new indications.

3.3 Investment Considerations

Factors Implications
Patent Status Loss of exclusivity reduces margins, increases competition
Generic Competition Drives down prices; shift to volume sales
Market Penetration Growth depends on formulary positioning & healthcare policies
Regulatory Barriers Potential delays in new approvals may impact revenue timelines

3.4 Financial Roadmap Over 5 Years

Year Scenario Revenue (USD Billion) CAGR Notes
2023 Baseline 2.6 Steady market share; stable demand
2024 Baseline 2.8 7.7% Slight growth with increased adoption in emerging markets
2025 Optimistic 4.55 29.2% New indications, increased doctor adoption
2025 Pessimistic 1.3 -50% Market saturation, loss of market share

4. Comparative Analysis

Parameter ALDOCLOR-250 Competitors Market Position
Patent Status Expired Similar Widely genericized
Pricing Strategy Competitive Varies; discount strategies Price leader in generics
Market Penetration Moderate High in established markets Growing in emerging markets
Formulation Differentiation Fixed-dose combo Monotherapy + physio Potential for line extensions
Regulatory Approvals Global Similar Standardized across markets

5. Market Challenges & Opportunities

Challenges

  • Patent Expiry & Generic Competition: Leading to price erosion and margin compression.
  • Market Penetration in Developing Countries: Requires navigating diverse regulatory landscapes.
  • Patient Adherence: Ensuring consistent prescribing of combination therapy over monotherapies remains a concern.

Opportunities

  • Line Extensions & New Indications: Combination formulations with improved safety profiles or additional benefits.
  • Digital & Remote Monitoring: Increasing use can improve adherence and drive demand.
  • Formulary & Payer Acceptance: Negotiations can enhance coverage policies favoring ALDOCLOR-250.

Conclusion

Investing in ALDOCLOR-250 hinges on understanding its mature, highly competitive landscape. The drug benefits from longstanding clinical acceptance but faces declining margins due to patent expirations and generic proliferation. Key growth avenues include expanding into emerging markets, developing line extensions, and strengthening formulary position. Strategic positioning amid genericization and regulatory shifts will determine its financial trajectory.


Key Takeaways

  • Market Size & Growth: The global antihypertensive combination market is substantial, with projected CAGR of approximately 5–8% in the coming five years, driven by rising hypertension prevalence.
  • Competition & Patent Dynamics: Expired patents have saturated markets with generics, compressing margins; innovation is crucial to sustain profitability.
  • Strategic Focus: Expansion into emerging markets and developing combination line extensions offers upside potential.
  • Investment Risks: Market saturation, regulatory hurdles, and pricing pressures reduce profitability; thorough due diligence on market access is essential.
  • Financial Outlook: Expect modest revenue declines in mature markets but potential growth in developing regions with favorable policies and increasing disease burden.

FAQs

Q1: What is the current patent status of ALDOCLOR-250?
Most formulations of ALDOCLOR-250 have lost patent exclusivity, leading to widespread generic competition globally.

Q2: How does market penetration vary across regions?
While highly established in North America and Europe, adoption in emerging markets is growing but varies significantly due to regulatory and reimbursement differences.

Q3: What are the key growth drivers for ALDOCLOR-250?
Increasing hypertension prevalence, patient preference for fixed-dose combinations, and cost-effective treatment policies support growth.

Q4: How significant is the impact of generic competition on profitability?
Substantial; generic competition often leads to price erosion up to 90%, necessitating cost efficiency and diversification strategies.

Q5: What future innovations could influence ALDOCLOR-250’s market?
Line extensions with improved safety features, combination with newer agents, or formulations incorporating sustained release could enhance competitive edge.


References

[1] World Health Organization. (2022). Hypertension Factsheet.
[2] Grand View Research. (2022). Global Hypertension Drugs Market Analysis.
[3] FDA. (2021). Patent Expiration and Generic Drug Approval Policies.
[4] IQVIA. (2022). Antihypertensive Market Data.
[5] MarketWatch. (2023). Pharmaceutical Industry Trends & Forecasts.

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.