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Last Updated: March 26, 2026

QUESTRAN LIGHT Drug Patent Profile


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When do Questran Light patents expire, and what generic alternatives are available?

Questran Light is a drug marketed by Bristol Myers and is included in one NDA.

The generic ingredient in QUESTRAN LIGHT is cholestyramine. There are eight drug master file entries for this compound. Thirteen suppliers are listed for this compound. Additional details are available on the cholestyramine profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Questran Light

A generic version of QUESTRAN LIGHT was approved as cholestyramine by EPIC PHARMA LLC on August 15th, 1996.

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Summary for QUESTRAN LIGHT
US Patents:0
Applicants:1
NDAs:1
Clinical Trials: 9
DailyMed Link:QUESTRAN LIGHT at DailyMed
Drug patent expirations by year for QUESTRAN LIGHT
Recent Clinical Trials for QUESTRAN LIGHT

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

SponsorPhase
Centre Hospitalier Universitaire de NiceN/A
National Cancer Institute (NCI)Phase 1
City of Hope Medical CenterPhase 1

See all QUESTRAN LIGHT clinical trials

US Patents and Regulatory Information for QUESTRAN LIGHT

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Bristol Myers QUESTRAN LIGHT cholestyramine POWDER;ORAL 019669-001 Dec 5, 1988 DISCN Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Bristol Myers QUESTRAN LIGHT cholestyramine POWDER;ORAL 019669-003 Dec 5, 1988 DISCN Yes 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 Questran Light

Last updated: February 10, 2026

Questran Light (cholestyramine resin) is a bile acid sequestrant indicated primarily for hypercholesterolemia management. It competes in a saturated market where generic options and emerging therapies influence its market share.

Market Position and Competition

Questran Light remains a branded product owned by Daiichi Sankyo. Its formulation, a lower-fat version of Questran, targets patients seeking cholesterol management with fewer gastrointestinal side effects. Despite its niche, generic cholestyramine products, including Questran, have eroded its market share.

Main competitors include:

  • Lipid-lowering agents: Statins (atorvastatin, rosuvastatin)
  • Other bile acid sequestrants: Colesevelam (Welchol), colestipol
  • Emerging therapies: PCSK9 inhibitors (alirocumab, evolocumab), which are increasingly used for hypercholesterolemia.

Market Size and Trends

The global hypercholesterolemia market was valued at approximately USD 12 billion in 2022 (source [1]) and is expected to grow at a CAGR of 4-6% through 2030. The increase driven by aging populations and rising cardiovascular disease prevalence influences demand for lipid-lowering drugs.

Questran Light's market share has declined over the past five years due to:

  • Surge in statin prescriptions, covering approximately 70% of hypercholesterolemia patients
  • Increased adoption of PCSK9 inhibitors for high-risk populations
  • Patent expirations of Questran generating generic competition

Revenue and Sales Trajectory

Daiichi Sankyo does not disclose specific sales figures for Questran Light separately; however, estimations based on market data suggest:

  • U.S. sales likely range between USD 50 million to 80 million annually
  • Decline of approximately 5-10% annually over the past three years due to generic erosion and market saturation
  • Emerging therapies notably gaining ground in high-risk segments, further pressuring Questran Light's revenues

Regulatory and Pricing Environment

Questran Light is available by prescription with a relatively low price point due to generic competition. Reimbursement dynamics favor generics, putting sustained pricing pressure on branded formulations.

Biopharmaceutical trend toward personalized medicine and drugs with better side effect profiles influences potential growth. There's limited pipeline activity for Questran Light-like formulations; most development focuses on new lipid-lowering agents.

Investment and Development Outlook

The outlook remains subdued unless:

  • Daiichi Sankyo initiates reformulation or new delivery mechanisms
  • A shift in treatment paradigms occurs, favoring bile acid sequestrants for specific cohorts
  • Regulatory changes incentivize branded formulations or combination products

No known pipeline or R&D investments specifically target Questran Light. The existing market forces suggest little financial upside absent significant strategic repositioning.


Key Takeaways

  • Questran Light faces declining market share amid the rise of statins and PCSK9 inhibitors.
  • Estimated U.S. annual sales lie between USD 50–80 million, trending downward.
  • A saturated market, patent expiration, and generic competition drive revenue compression.
  • Growth opportunities are limited without reformulation or new therapeutic positioning.
  • The current trajectory indicates gradual revenue erosion unless market dynamics shift.

FAQs

  1. What factors are driving the decline in Questran Light sales?
    Generic competition, the dominance of statins, and the rise of PCSK9 inhibitors reduce Questran Light’s market share.

  2. Are there any new formulations or indications for Questran Light?
    No significant updates or new indications are publicly announced; focus remains on existing cholesterol management uses.

  3. How does Questran Light compare price-wise to generics?
    Its price is comparable or slightly higher than generics, but widespread generic availability keeps prices low.

  4. What is the outlook for revenue growth for Questran Light?
    The outlook remains negative unless new formulations or strategic revisions occur; market share is expected to continue shrinking.

  5. Could emerging therapies impact future demand for bile acid sequestrants?
    Yes, especially if newer drugs demonstrate superior efficacy and safety, further displacing older agents like Questran Light.


Sources:
[1] MarketWatch, "Global Hypercholesterolemia Market Size and Forecast," 2022.

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