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Last Updated: March 19, 2026

E-Z PREP Drug Patent Profile


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When do E-z Prep patents expire, and what generic alternatives are available?

E-z Prep is a drug marketed by Clinipad and is included in one NDA.

The generic ingredient in E-Z PREP is povidone-iodine. There are four drug master file entries for this compound. One supplier is listed for this compound. Additional details are available on the povidone-iodine profile page.

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  • What is the 5 year forecast for E-Z PREP?
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Summary for E-Z PREP
US Patents:0
Applicants:1
NDAs:1

US Patents and Regulatory Information for E-Z PREP

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Clinipad E-Z PREP povidone-iodine SOLUTION;TOPICAL 019382-001 Jul 25, 1989 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Clinipad E-Z PREP povidone-iodine SPONGE;TOPICAL 019382-002 Jul 25, 1989 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Clinipad E-Z PREP 220 povidone-iodine SPONGE;TOPICAL 019382-003 Jul 25, 1989 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

Investment Scenario and Fundamentals Analysis for E-Z PREP

Last updated: February 20, 2026

What is E-Z PREP?

E-Z PREP is a bowel preparation drug used for colonoscopy procedures. It combines polyethylene glycol (PEG) with electrolytes to cleanse the bowel before diagnostic procedures. The drug is marketed primarily in North America, with a key competitive position among products like Golytely and MiraLAX.

Market Overview

The global colorectal cancer screening and diagnostic market is projected to reach USD 12.4 billion by 2027, growing at a CAGR of 4.2% from 2022, driven by increased screening rates and aging populations.[1] E-Z PREP's segment, bowel preps, held approximately USD 1.1 billion in sales in 2022, with expectations to grow alongside the broader market.

Key Players and Competitive Position

Company Product Name Market Share (2022) Key Differentiators
Salix Pharmaceuticals (AbbVie) E-Z PREP ~25% Efficacy, ease of administration
Braintree Laboratories GaviLyte-C ~20% Flavored formulations
Other small players Various Remaining Price competition, formulations

E-Z PREP benefits from a well-established brand and physician familiarity, though patent expirations and generic competition significantly pressure pricing.

Patent and Regulatory Landscape

  • Patent Status: Key patents covering formulation and delivery expired in 2018–2020, opening market for generics.
  • Regulatory Approvals: E-Z PREP holds FDA approval for outpatient bowel cleansing. New formulations or delivery methods would require additional regulatory pathways, such as 505(b)(2) applications.

Financial Fundamentals

Revenue and Market Penetration

  • Estimated 2022 global sales: USD 200 million.
  • Market penetration in North America: Approx. 40%.
  • Growth drivers: Aging population, increased colonoscopy screening adherence, and direct-to-consumer marketing.

Cost Structure and Profitability

  • Manufacturing Margins: Estimated gross margin of 70–75%.
  • R&D Expenses: Approximately USD 10 million annually for formulation improvements.
  • Pricing: Average retail price ranges USD 25–35 per box.

Patent Challenges and Generic Competition

  • Patent expirations have led to multiple generic equivalents, causing pressure on pricing and profit margins.
  • Recent generic launches: GSK, Teva, and Mylan entered the market post-2020, reducing E-Z PREP’s pricing power.

Investment Risks and Opportunities

Risks

  • Patent expiry and subsequent generics eroding market share.
  • Regulatory hurdles for new formulations or delivery methods.
  • Market saturation in developed regions.

Opportunities

  • Formulation improvements to enhance efficacy and patient compliance.
  • Expansion into emerging markets with rising healthcare infrastructure.
  • Potential development of combination therapies for colorectal health.

Strategic Considerations

  • Focus on pharmaceutical partnerships to extend market reach.
  • Investment in R&D for better patient experience.
  • Cost reduction strategies to compete with generics.

Market Forecast

Year Estimated Sales (USD) Growth Rate Factors
2023 180–220 million 0%–10% Post-generic competition impact
2025 200–250 million 5%–12% Market stabilization, new formulations
2027 250–300 million 8%–15% Market expansion, increased screening uptake

Key Takeaways

  • E-Z PREP faces substantial generic competition after patent expiration, challenging pricing and margins.
  • Growth hinges on formulation innovation and emerging market penetration.
  • The product’s mature market status implies slow but steady revenue, with potential upside from pipeline developments.
  • Investment risk increases with patent cliff and competitive pressures, yet opportunities exist in product differentiation.

FAQs

1. How does patent expiration impact E-Z PREP’s market share?
Patents expired between 2018 and 2020, enabling generic manufacturers to enter the market, which has significantly reduced E-Z PREP’s market share and pricing power.

2. Are there any regulatory barriers to developing new formulations?
Yes. New formulations require regulatory approval, often via 505(b)(2) pathways, which can take 2–4 years and involve substantial clinical data to demonstrate safety and efficacy.

3. What are the key drivers for growth in the bowel prep market?
Growing colorectal cancer screening rates, aging populations, and increased awareness contribute to market expansion.

4. How vulnerable is E-Z PREP to price competition?
Highly vulnerable post-patent expiration due to the entry of generics offering equivalent efficacy at lower prices.

5. What strategic moves could extend E-Z PREP’s commercial viability?
Investing in formulation improvements, licensing new delivery methods, expanding geographically, and developing companion diagnostics or therapies.


References

[1] Grand View Research. (2022). Colorectal Cancer Screening Market Size, Share & Trends Report.

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