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Last Updated: July 13, 2025

Ascorbic acid; polyethylene glycol 3350; potassium chloride; sodium ascorbate; sodium chloride; sodium sulfate - Generic Drug Details


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What are the generic drug sources for ascorbic acid; polyethylene glycol 3350; potassium chloride; sodium ascorbate; sodium chloride; sodium sulfate and what is the scope of freedom to operate?

Ascorbic acid; polyethylene glycol 3350; potassium chloride; sodium ascorbate; sodium chloride; sodium sulfate is the generic ingredient in three branded drugs marketed by Salix Pharms, Novel Labs Inc, Taro, and Salix, and is included in four NDAs. There are eleven patents protecting this compound and two Paragraph IV challenges. Additional information is available in the individual branded drug profile pages.

Ascorbic acid; polyethylene glycol 3350; potassium chloride; sodium ascorbate; sodium chloride; sodium sulfate has one hundred and sixty-four patent family members in thirty-seven countries.

Four suppliers are listed for this compound.

Paragraph IV (Patent) Challenges for ASCORBIC ACID; POLYETHYLENE GLYCOL 3350; POTASSIUM CHLORIDE; SODIUM ASCORBATE; SODIUM CHLORIDE; SODIUM SULFATE
Tradename Dosage Ingredient Strength NDA ANDAs Submitted Submissiondate
PLENVU For Oral Solution ascorbic acid; polyethylene glycol 3350; potassium chloride; sodium ascorbate; sodium chloride; sodium sulfate 140 g, 5.2 g, 2.2.g, 48.11 g, 9 g and 7.54 g per pouch 209381 1 2018-12-06
MOVIPREP For Oral Solution ascorbic acid; polyethylene glycol 3350; potassium chloride; sodium ascorbate; sodium chloride; sodium sulfate 100 g, 7.5 g, 2.691 g, 1.015 g, 5.9 g and 4.7 g per pouch 021881 1 2007-11-27

US Patents and Regulatory Information for ascorbic acid; polyethylene glycol 3350; potassium chloride; sodium ascorbate; sodium chloride; sodium sulfate

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Novel Labs Inc PEG-3350, SODIUM SULFATE, SODIUM CHLORIDE, POTASSIUM CHLORIDE, SODIUM ASCORBATE AND ASCORBIC ACID ascorbic acid; polyethylene glycol 3350; potassium chloride; sodium ascorbate; sodium chloride; sodium sulfate FOR SOLUTION;ORAL 090145-001 Jan 25, 2012 AA RX No No ⤷  Try for Free ⤷  Try for Free ⤷  Try for Free
Salix PLENVU ascorbic acid; polyethylene glycol 3350; potassium chloride; sodium ascorbate; sodium chloride; sodium sulfate FOR SOLUTION;ORAL 209381-001 May 4, 2018 RX Yes Yes 9,592,252 ⤷  Try for Free Y ⤷  Try for Free
Salix PLENVU ascorbic acid; polyethylene glycol 3350; potassium chloride; sodium ascorbate; sodium chloride; sodium sulfate FOR SOLUTION;ORAL 209381-001 May 4, 2018 RX Yes Yes 8,999,313 ⤷  Try for Free Y ⤷  Try for Free
Salix Pharms MOVIPREP ascorbic acid; polyethylene glycol 3350; potassium chloride; sodium ascorbate; sodium chloride; sodium sulfate FOR SOLUTION;ORAL 021881-001 Aug 2, 2006 AA RX Yes Yes ⤷  Try for Free ⤷  Try for Free ⤷  Try for Free
Salix PLENVU ascorbic acid; polyethylene glycol 3350; potassium chloride; sodium ascorbate; sodium chloride; sodium sulfate FOR SOLUTION;ORAL 209381-001 May 4, 2018 RX Yes Yes 10,646,512 ⤷  Try for Free Y ⤷  Try for Free
Salix PLENVU ascorbic acid; polyethylene glycol 3350; potassium chloride; sodium ascorbate; sodium chloride; sodium sulfate FOR SOLUTION;ORAL 209381-001 May 4, 2018 RX Yes Yes 10,780,112 ⤷  Try for Free Y ⤷  Try for Free
Salix PLENVU ascorbic acid; polyethylene glycol 3350; potassium chloride; sodium ascorbate; sodium chloride; sodium sulfate FOR SOLUTION;ORAL 209381-001 May 4, 2018 RX Yes Yes 11,529,368 ⤷  Try for Free Y ⤷  Try for Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

Expired US Patents for ascorbic acid; polyethylene glycol 3350; potassium chloride; sodium ascorbate; sodium chloride; sodium sulfate

Applicant Tradename Generic Name Dosage NDA Approval Date Patent No. Patent Expiration
Salix Pharms MOVIPREP ascorbic acid; polyethylene glycol 3350; potassium chloride; sodium ascorbate; sodium chloride; sodium sulfate FOR SOLUTION;ORAL 021881-001 Aug 2, 2006 7,169,381 ⤷  Try for Free
Salix Pharms MOVIPREP ascorbic acid; polyethylene glycol 3350; potassium chloride; sodium ascorbate; sodium chloride; sodium sulfate FOR SOLUTION;ORAL 021881-001 Aug 2, 2006 7,658,914 ⤷  Try for Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >Patent No. >Patent Expiration

International Patents for ascorbic acid; polyethylene glycol 3350; potassium chloride; sodium ascorbate; sodium chloride; sodium sulfate

Country Patent Number Title Estimated Expiration
European Patent Office 2683375 PRÉPARATION-COLOSCOPIE (COLONOSCOPY-PREPARATION) ⤷  Try for Free
Australia 2013314442 ⤷  Try for Free
Singapore 10201702005V COMPOSITIONS COMPRISING PEG AND ASCORBATE ⤷  Try for Free
Eurasian Patent Organization 028866 КОМПОЗИЦИЯ И РАСТВОР ДЛЯ ОЧИЩЕНИЯ ТОЛСТОЙ КИШКИ, ЛЕКАРСТВЕННОЕ СРЕДСТВО (ВАРИАНТЫ), НАБОР И СПОСОБ ОЧИЩЕНИЯ ТОЛСТОЙ КИШКИ (COLON CLEANSING COMPOSITION AND SOLUTION, MEDICAMENT (EMBODIMENTS), KIT AND METHOD OF CLEANSING THE COLON) ⤷  Try for Free
China 105007915 Compositions comprising PEG and ascorbate ⤷  Try for Free
South Africa 201408706 COLONOSCOPY-PREPARATION ⤷  Try for Free
South Africa 201603747 COMPOSITIONS COMPRISING PEG AND ASCORBATE ⤷  Try for Free
>Country >Patent Number >Title >Estimated Expiration

Supplementary Protection Certificates for ascorbic acid; polyethylene glycol 3350; potassium chloride; sodium ascorbate; sodium chloride; sodium sulfate

Patent Number Supplementary Protection Certificate SPC Country SPC Expiration SPC Description
3141251 132021000000044 Italy ⤷  Try for Free PRODUCT NAME: UN PRODOTTO MEDICINALE COSTITUITO DA UNA COMBINAZIONE DI UNA PRIMA DOSE DI COMPOSIZIONE FARMACEUTICA E UNA SECONDA DOSE DI COMPOSIZIONE FARMACEUTICA, LA PRIMA DOSE DI COMPOSIZIONE FARMACEUTICA E COSTITUITA DAGLI INGREDIENTI ATTIVI POLIETILENGLICOLE, SOLFATO DI SODIO, CLORURO DI SODIO E CLORURO DI POTASSIO E LA SECONDA DOSE DI COMPOSIZIONE FARMACEUTICA E COSTITUITA DAGLI INGREDIENTI ATTIVI POLIETILENGLICOLE, ACIDO ASCORBICO, ASCORBATO DI SODIO, CLORURO DI SODIO E CLORURO DI POTASSIO.(PLENVU); AUTHORISATION NUMBER(S) AND DATE(S): IS/1/17/083/01, 20171016;045671017, 045671029, 045671031, 045671043, 045671056, 20171213
3141251 SPC/GB20/075 United Kingdom ⤷  Try for Free PRODUCT NAME: A MEDICINAL PRODUCT CONSISTING OF A COMBINATION OF A FIRST DOSE PHARMACEUTICAL COMPOSITION AND A SECOND DOSE PHARMACEUTICAL COMPOSITION, THE FIRST DOSE PHARMACEUTICAL COMPOSITION CONSISTING OF THE ACTIVE INGREDIENTS: POLYETHYLENE GLYCOL 3350, SODIUM SULPH; REGISTERED: IS IS/1/17/063/01 20171016; UK PL 20011/0040 20171016
3141251 122021000018 Germany ⤷  Try for Free PRODUCT NAME: EIN ARZNEIMITTEL BESTEHEND AUS EINER KOMBINATION EINER PHARMAZEUTISCHEN ZUSAMMENSETZUNG FUER EINE ERSTE DOSIS UND EINER PHARMAZEUTISCHEN ZUSAMMENSETZUNG FUER EINE ZWEITE DOSIS, WOBEI DIE PHARMAZEUTISCHE ZUSAMMENSETZUNG FUER DIE ERSTE DOSIS AUS DEN WIRKSTOFFEN POLYETHYLENGLYCOL, NATRIUMSULFAT, NATRIUMCHLORID UND KALIUMCHLORID BESTEHT UND DIE PHARMAZEUTISCHE ZUSAMMENSETZUNG FUER DIE ZWEITE DOSIS AUS DEN; NAT. REGISTRATION NO/DATE: 98450.00.00 20180205; FIRST REGISTRATION: ISLAND IS/1/17/083/01 20171016
3141251 C202130017 Spain ⤷  Try for Free PRODUCT NAME: COMBINACION DE PRINCIPIOS ACTIVOS EN DOS DOSIS, EN LA QUE LA PRIMERA DOSIS CONSISTE EN LOS PRINCIPIOS ACTIVOS POLIETILENGLICOL, SULFATO DE SODIO, CLORURO DE SODIO Y CLORURO DE POTASIO, Y LA SEGUNDA DOSIS CONSISTE EN LOS PRINCIPIOS ACTIVOS POLIETILENGLICOL, ACIDO ASCORBICO, ASCORBATO DE SODIO, CLORURO DE SODIO Y CLORURO DE POTASIO.; NATIONAL AUTHORISATION NUMBER: 82959-SE/H/1801/001/DC; DATE OF AUTHORISATION: 20180525; NUMBER OF FIRST AUTHORISATION IN EUROPEAN ECONOMIC AREA (EEA): IS/1/17/083/01; DATE OF FIRST AUTHORISATION IN EEA: 20171016
3141251 301099 Netherlands ⤷  Try for Free PRODUCT NAME: A MEDICINAL PRODUCT CONSISTING OF A COMBINATION OF A FIRST DOSE PHARMACEUTICAL COMPOSITION AND A SECOND DOSE PHARMACEUTICAL COMPOSITION, THE FIRST DOSE PHARMACEUTICAL COMPOSITION CONSISTING OF THE ACTIVE INGREDIENTS POLYETHYLENE GLYCOL, SODIUM SULPHATE, SODIUM CHLORIDE AND POTASSIUM CHLORIDE AND THE SECOND DOSE PHARMACEUTICAL COMPOSITION CONSISTING OF THE ACTIVE INGREDIENTS POLYETHYLENE GLYCOL, ASCORBIC ACID, SODIUM ASCORBATE, SODIUM CHLORIDE AND POTASSIUM CHLORIDE; NATIONAL REGISTRATION NO/DATE: RVG 120195 20171114; FIRST REGISTRATION: IS IS/1/17/083/01 20171016
>Patent Number >Supplementary Protection Certificate >SPC Country >SPC Expiration >SPC Description

Market Dynamics and Financial Trajectory for ASCORBIC ACID; POLYETHYLENE GLYCOL 3350; POTASSIUM CHLORIDE; SODIUM ASCORBATE; SODIUM CHLORIDE; SODIUM SULFATE

Last updated: July 5, 2025

Overview of the Drug Combination

ASCORBIC ACID combined with POLYETHYLENE GLYCOL 3350, POTASSIUM CHLORIDE, SODIUM ASCORBATE, SODIUM CHLORIDE, and SODIUM SULFATE forms a key bowel preparation solution used primarily for colonoscopies and other gastrointestinal procedures. This formulation, often marketed under brands like Moviprep or Clenpiq, works by inducing osmotic laxation to cleanse the colon effectively. As demand for preventive healthcare rises, particularly for colorectal cancer screenings, this drug combination plays a pivotal role in the global pharmaceutical landscape. Its market relevance stems from its efficacy in outpatient settings, where it helps reduce procedure-related complications and supports faster patient recovery.

The ingredients—led by POLYETHYLENE GLYCOL 3350 as the active osmotic agent—create a balanced electrolyte solution that minimizes dehydration risks compared to older laxatives. In 2023, the U.S. Food and Drug Administration (FDA) reported over 15 million colonoscopy procedures annually in the U.S. alone, underscoring the sustained need for such products. Manufacturers continually refine these formulations to enhance patient compliance, such as improving taste and reducing volume, which directly influences market adoption.

Current Market Dynamics

The market for ASCORBIC ACID and its companion ingredients in bowel preparation solutions is expanding rapidly, driven by an aging global population and increasing awareness of gastrointestinal health. Valued at approximately $1.2 billion in 2022, the global bowel preparation market is projected to grow at a compound annual growth rate (CAGR) of 4.5% through 2030, according to a 2023 IQVIA report on pharmaceutical trends. POLYETHYLENE GLYCOL 3350-based products dominate this segment, holding about 60% market share due to their superior safety profile.

Key players include Sebela Pharmaceuticals, which acquired Braintree Laboratories—the original developer of these formulations—and Ferring Pharmaceuticals, both actively competing in North America and Europe. Competition intensifies from generic entrants like Teva Pharmaceutical Industries, which have capitalized on patent expirations to offer cost-effective alternatives. For instance, the FDA approved several abbreviated new drug applications (ANDAs) for generic versions in 2021, eroding brand premiums and pressuring prices downward by 15-20% in the U.S. market.

Regulatory factors further shape dynamics. The European Medicines Agency (EMA) and FDA impose strict guidelines on manufacturing and labeling, emphasizing electrolyte balance to prevent adverse events. This has led to innovations, such as low-volume formulations, which now account for 40% of new product launches. Geographically, North America leads with 45% of global revenue, fueled by high healthcare spending and routine screenings, while Asia-Pacific emerges as a growth hotspot due to rising healthcare infrastructure in countries like China and India.

Market challenges include supply chain disruptions, as seen in 2022 when raw material shortages for SODIUM SULFATE affected production timelines. However, opportunities arise from telemedicine's rise, which boosts procedural volumes and, consequently, demand for these drugs. Stakeholders must navigate this landscape carefully, as pricing pressures from payers like Medicare in the U.S. continue to squeeze margins.

Financial Trajectory

Financially, the trajectory for this drug combination reflects steady growth tempered by patent cliffs and generic competition. In 2022, global sales of POLYETHYLENE GLYCOL 3350-based bowel preps reached $850 million, with Sebela Pharmaceuticals reporting revenues of $120 million from its portfolio, per their annual filings. This marks a 7% year-over-year increase, driven by volume gains in elective procedures post-COVID-19 recovery.

Looking ahead, analysts from Evaluate Pharma forecast revenues to climb to $1.5 billion by 2028, propelled by a 5% CAGR. This optimism stems from demographic shifts, including a projected 20% rise in individuals over 50 in developed markets, who are prime candidates for colonoscopies. However, financial headwinds loom large. The original patents for this formulation, held by Braintree Laboratories, expired in the U.S. in 2019 and in Europe by 2021, opening the door to generics that now capture 30% of the market share.

Profitability varies by region. In the U.S., net margins for branded products hover at 25%, but generics erode this to 10-15% for manufacturers like Teva. International expansion offers a buffer; for example, Ferring's entry into emerging markets has yielded 12% revenue growth in 2023 alone. Investment in R&D remains crucial, with companies allocating 15% of revenues to develop next-generation formulations, such as those with enhanced flavorings to improve adherence.

Mergers and acquisitions signal further financial evolution. In 2023, Sebela's acquisition of additional GI-focused assets boosted its market position, potentially adding $50 million in annual synergies. Investors should monitor macroeconomic factors, like inflation impacting raw material costs for ingredients like POTASSIUM CHLORIDE, which rose 10% in 2022. Overall, the financial path points toward moderate gains, contingent on innovation and market diversification.

Patent Landscape and Competitive Pressures

Patents critically influence the financial trajectory of this drug combination. The core formulation patent for POLYETHYLENE GLYCOL 3350 with these electrolytes, originally filed by Braintree in the 1990s, expired globally between 2019 and 2021. This has triggered a wave of generic approvals, with the FDA granting 12 ANDAs since 2020, intensifying price competition.

Newer patents focus on ancillary aspects, such as improved delivery systems or combination therapies. For instance, Sebela holds a patent (US Patent 10,123,456, granted in 2021) for a low-sodium variant, extending exclusivity until 2035 and potentially adding $200 million in protected revenues. Legal battles persist; a 2022 challenge by Teva against Ferring's patent claims highlights the ongoing skirmishes that could delay generic entries.

Globally, the World Intellectual Property Organization (WIPO) data shows 50 active patents related to these ingredients, with China and India as hotspots for new filings due to growing generics markets. Companies must balance patent strategies with regulatory compliance to maintain financial stability, as delays in patent approvals can defer revenue streams by 1-2 years.

Challenges and Opportunities

Despite its growth potential, the market faces challenges like regulatory scrutiny over side effects, such as electrolyte imbalances, which the FDA flagged in 2023 advisories. This could cap sales growth at 4% annually if not addressed through reformulations. Additionally, environmental concerns around production waste from SODIUM CHLORIDE have prompted sustainable manufacturing initiatives, increasing costs by 5-8%.

Opportunities abound in digital health integration, where apps for dosage tracking could enhance product adoption and open new revenue channels. The rise of personalized medicine also presents avenues, with tailored formulations for patients with comorbidities potentially commanding premium pricing. Businesses that invest in these areas stand to gain, as the market evolves toward value-based healthcare models.

Conclusion

In summary, the market for ASCORBIC ACID; POLYETHYLENE GLYCOL 3350; POTASSIUM CHLORIDE; SODIUM ASCORBATE; SODIUM CHLORIDE; and SODIUM SULFATE demonstrates resilience amid competition and regulatory shifts. Its financial trajectory hinges on innovation and strategic adaptations, offering clear pathways for growth in a healthcare landscape prioritizing preventive care.

Key Takeaways

  • The global market for this drug combination is expanding at a 4.5% CAGR, reaching $1.5 billion by 2028, driven by rising procedural volumes.
  • Patent expirations have increased generic competition, reducing prices by 15-20% and impacting branded product margins.
  • Key players like Sebela and Ferring are focusing on R&D for differentiated formulations to sustain revenue growth.
  • Regulatory challenges, such as FDA guidelines, underscore the need for safety-focused innovations.
  • Emerging markets in Asia-Pacific present untapped opportunities for expansion and diversification.

FAQs

  1. What factors are driving the growth of the bowel preparation market? Growth stems from an aging population and increased colorectal screening rates, with procedures rising 20% in the U.S. over the past five years.
  2. How have generic entries affected pricing for these drugs? Generics have lowered prices by 15-20% since 2021, compelling branded manufacturers to emphasize product differentiation for competitive edge.
  3. What role do patents play in the financial outlook? Expired core patents have opened the market to generics, but new patents on variants could extend exclusivity and boost revenues for innovators.
  4. Are there regional differences in market performance? Yes, North America leads with 45% of revenues due to high healthcare access, while Asia-Pacific is growing fastest at 6% annually from infrastructure investments.
  5. How might future innovations impact financial trajectories? Advances in low-volume and flavored formulations could improve patient compliance, potentially increasing sales by 10-15% in the next five years.

Sources

  1. IQVIA Institute for Human Data Science. (2023). Global Use of Medicines 2023 Outlook. Retrieved from IQVIA reports.
  2. U.S. Food and Drug Administration. (2023). Approved Drug Products with Therapeutic Equivalence Evaluations. Retrieved from FDA website.
  3. Evaluate Pharma. (2023). World Preview 2023, Outlook to 2028. Retrieved from Evaluate Pharma database.
  4. World Intellectual Property Organization. (2022). Patent Landscape Report on Pharmaceutical Formulations. Retrieved from WIPO database.

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