Opioid Induced Constipation Market Size and Share

Opioid Induced Constipation Market (2025 - 2030)
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Opioid Induced Constipation Market Analysis by Mordor Intelligence

The opioid induced constipation market was valued at USD 3.06 billion in 2025 and is expected to reach USD 3.99 billion by 2030, advancing at a 6.7% CAGR. The sustained growth reflects the need to manage constipation in 40–80% of patients who rely on opioids for chronic or cancer-related pain. Rising opioid prescriptions, regulatory approvals for novel peripherally acting µ-opioid receptor antagonists (PAMORAs), and growing adoption of digital adherence tools are core demand drivers. North America dominates due to high opioid consumption, yet Asia Pacific records the fastest expansion as Japan, China, and India harmonize guidelines and broaden access to proven therapies. Label extensions into pediatric populations and hospital stewardship mandates institutionalize prophylactic bowel regimens, while pipeline products with improved safety profiles strengthen the opioid induced constipation market’s long-term outlook.

Key Report Takeaways

  • By drug class, PAMORAs led with 73.3% revenue share in 2024; guanylate cyclase-C agonists are forecast to expand at an 11.6% CAGR through 2030.
  • By prescription type, prescription medications held 91.2% of the opioid induced constipation market share in 2024, while OTC products are projected to grow at an 8.2% CAGR to 2030.
  • By route, oral formulations accounted for 95.0% share of the opioid induced constipation market size in 2024 and parenteral products are set to advance at a 7.5% CAGR through 2030.
  • By patient group, non-cancer chronic-pain patients captured 69.0% of the opioid induced constipation market share in 2024; the cancer segment is expected to grow at a 9.5% CAGR between 2025–2030.
  • By distribution channel, hospital pharmacies represented 45.3% of revenue in 2024, while online pharmacies are forecast to post a 10.6% CAGR during the same period.
  • By geography, North America contributed 44.5% revenue in 2024; Asia Pacific is projected to witness the highest 7.5% CAGR through 2030. 

Segment Analysis

By Drug Class: Diverse Mechanisms Deepen the Therapeutic Toolbox

PAMORAs contributed USD 2.24 billion in 2024, equal to 73.3% of the opioid induced constipation market size, as their gut-restricted receptor blockade preserves central analgesia. The class retains physician confidence despite the FDA withdrawal of alvimopan because alternatives such as naldemedine yield 81–90% spontaneous bowel movement response in Japanese trials. Looking ahead, guanylate cyclase-C agonists are forecast to post the highest 11.6% CAGR, underpinned by pediatric label extensions. Sustained investment in combination opioid-PAMORA pills promises to defend the opioid induced constipation market share of peripherally acting agents amid mounting class competition.

Manufacturers hedge risk by diversifying their mode of action. 5-HT4 receptor agonists with improved cardiac safety, hemp-derived motility enhancers, and gut-selective peptides are now in Phase II. These entrants could capture niche cohorts intolerant of diarrhea or abdominal cramping. Nonetheless, prescribers may prefer well-established PAMORAs until head-to-head outcomes trials confirm equivalence, ensuring the opioid induced constipation market remains dominated by incumbents through most of the outlook period.

Opioid Induced Constipation Market: Market Share by Drug Class
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Note: Segment shares of all individual segments available upon report purchase

By Prescription Type: Evolving Regulation Shapes Consumer Access

Prescription products represented 91.2% of 2024 revenue, confirming clinician oversight remains essential when manipulating µ-opioid receptors. The opioid induced constipation market size for OTC formulations was modest but is predicted to grow as consumer familiarity rises. Regulatory bodies continue to debate switching select PAMORAs to pharmacist-guided status once post-marketing surveillance demonstrates low misuse risk.

Advocates believe successful Rx-to-OTC switches could reduce emergency visits caused by chronic laxative misuse. Yet the mechanistic complexity of opioid antagonism and potential for precipitated withdrawal keep most molecules in prescription channels for now. Digital prescription platforms may blur lines: validated bowel-tracking apps bundled with drug coupons offer semi-automated follow-up, gradually shifting portions of the opioid induced constipation industry toward a self-management paradigm.

By Route of Administration: Oral Dominance with Targeted Parenteral Use

Oral agents controlled 95.1% of 2024 volumes, favored for convenience and lower administration cost. Institutional protocols, however, rely on injectable methylnaltrexone when patients cannot tolerate oral intake, contributing to a 7.5% CAGR for parenteral options. Product developers seek oral formulations with minimal food effect to improve adherence; revised naloxegol formulations under clinical review allow dosing without regard to meals, which could further reinforce oral predominance within the opioid induced constipation market.

Hospitals nonetheless value rapid-acting injectables for postoperative and palliative care. Novel delivery vectors such as buccal films and transdermal patches are in early studies, targeting populations with impaired swallowing. Should these platforms gain approval, they may incrementally erode the oral share, especially in specialized oncology settings where predictable onset outweighs tablet convenience.

Opioid Induced Constipation Market: Market Share by Route of Administration
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Note: Segment shares of all individual segments available upon report purchase

By Patient Group: Divergent Care Pathways Shape Demand

Non-cancer chronic-pain patients accounted for 69.0% of the opioid induced constipation market size in 2024, buoyed by long-term osteoarthritis management in aging populations. Cancer patients, although only 31.0% of total users, underpin premium pricing strategies: high-dose opioid regimens elevate constipation severity, and willingness to pay for rapid relief supports formulary inclusion of newer PAMORAs.

Evidence-based guidelines from oncology societies now advocate prophylactic bowel regimens from day 1 of opioid therapy, driving earlier and often higher-dose intervention. In contrast, primary-care settings for back pain or neuropathy typically exhaust bulk-forming and osmotic laxatives before escalating to prescription PAMORAs, explaining slower unit growth despite large absolute volumes within the opioid induced constipation market.

By Distribution Channel: Digital Dispensing Gains Traction

Hospital pharmacies generated 45.3% of 2024 sales, reflecting inpatient stewardship mandates. Telehealth growth stabilised digital opioid prescribing at 8.4% of total scripts in 2022, creating fertile ground for online pharmacies to process refill orders with integrated video counselling. As a result, the online channel is projected to expand at a 10.6% CAGR.

Retail outlets refine their value proposition by offering on-site pharmacists certified in opioid risk mitigation and bowel regimen education. Meanwhile, manufacturers form exclusive e-pharmacy partnerships for high-priced launches such as suzetrigine, ensuring tight supply control and real-time patient data collection. This hybrid landscape reinforces the opioid induced constipation industry’s need to balance broad access with controlled substance safeguards.

Geography Analysis

North America contributed 44.5% of global revenue in 2024, anchored by the United States, which consumes nearly 80% of worldwide opioid volumes. Widespread payer coverage, entrenched pain management guidelines, and FDA leadership in approving innovative classes keep the region at the forefront. Hospital networks, from Cedars-Sinai to Mayo Clinic, have embedded digital stool monitors that trigger immediate laxative escalation when no bowel movement is recorded within 24 hours, underscoring an institutional commitment to proactive care. Canada mirrors U.S. dynamics ,though on a smaller scale, with national opioid stewardship frameworks adopting fixed bowel regimen bundles in tertiary hospitals. Policy reforms aimed at curbing opioid misuse steadily reduce new opioid starts, yet high chronic-user prevalence maintains a sizeable patient pool requiring constipation therapies. Consequently, the opioid induced constipation market retains robust, if maturing, growth prospects in North America.

Asia Pacific exhibits the highest 7.5% CAGR through 2030. Japan's rapid uptake of naldemedine, validated in Phase III trials reporting 81–90% response despite 88-90% adverse-event incidence, showcases clinical confidence. China's inclusion of PAMORAs in provincial reimbursement lists improves affordability, while a 2024 osteoarthritis meta-analysis confirming a 3.57-fold constipation risk with opioids informs policymakers considering broader adoption. India's burgeoning generic manufacturing base positions domestic firms to launch cost-effective entrants once international patents lapse, enhancing treatment penetration across lower-income populations.

Europe maintains steady uptake amid payer scrutiny. The EMA's June 2024 acceptance of naloxegol and Germany's permanent reimbursement for a gastrointestinal digital therapeutic illustrate balanced innovation and cost containment. National health technology assessment bodies evaluate not just drug price but total cost of care, encouraging manufacturers to package PAMORAs with adherence-support platforms. Reimbursement claw-backs in markets such as France temper list prices, yet volume remains resilient due to aging demographics and oncologic opioid use. The opioid induced constipation market therefore shows moderate but reliable expansion across the continent.

Opioid Induced Constipation Market CAGR (%), Growth Rate by Region
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Competitive Landscape

The opioid induced constipation market is moderately consolidated. Grünenthal strengthened its position by purchasing global rights to Movantik for USD 250 million in July 2024, supplementing an existing pain portfolio. In March 2025, Mallinckrodt and Endo agreed to a USD 6.7 billion merger, combining legacy opioid franchises to secure scale efficiencies while navigating litigation liabilities. Such deals raise combined market power but still leave room for mid-cap innovators focusing on complementary mechanisms.

Pipeline differentiation is intense. Ensysce Biosciences won USD 5.3 million NIH funding to progress PF614-MPAR, a tamper-resistant opioid paired with an on-board PAMORA that aims to abolish OIC while mitigating overdose. Vertex entered the space tangentially with suzetrigine, leveraging non-opioid pain relief to bypass constipation entirely. Digital-health specialists, including Mahana Therapeutics, partner with drug firms to supply FDA-cleared apps that document stool frequency and trigger dosing reminders, an emerging battleground for user loyalty.

Regulatory actions shape competition. The FDA’s withdrawal of alvimopan removed a perioperative PAMORA option, consolidating share among naloxegol, naldemedine, and methylnaltrexone. Conversely, pediatric clearance for linaclotide opened a white-space segment that incumbent Aperion now races to serve. Overall, firms concentrate on demonstrating value through health-economic studies rather than price alone, recognizing that payers demand evidence of reduced hospitalization and improved quality of life before granting premium reimbursement tiers.

Opioid Induced Constipation Industry Leaders

  1. AstraZeneca plc

  2. Merck & Co Inc

  3. Shionogi & Co Ltd

  4. Mallinckrodt Pharmaceuticals

  5. Bausch Health ( Salix Pharmaceutical Inc.)

  6. *Disclaimer: Major Players sorted in no particular order
Opioid Induced Constipation Market
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Recent Industry Developments

  • March 2025: Mallinckrodt and Endo announced a USD 6.7 billion merger aimed at integrating opioid portfolios and resolving legal liabilities.
  • January 2025: FDA approved Journavx (suzetrigine), the first new non-opioid pain therapy in decades, eliminating OIC risk for acute pain patients.
  • January 2025: FDA cleared ANI Pharmaceuticals’ first generic of prucalopride with 180-day exclusivity.
  • July 2024: FDA approved Zurnai, the inaugural nalmefene autoinjector for opioid overdose reversal.

Table of Contents for Opioid Induced Constipation Industry Report

1. Introduction

  • 1.1 Study Assumptions & Market Definition
  • 1.2 Scope of the Study

2. Research Methodology

3. Executive Summary

4. Market Landscape

  • 4.1 Market Overview
  • 4.2 Market Drivers
    • 4.2.1 Rising Opioid Prescriptions For Chronic Pain Management
    • 4.2.2 Label Expansions & Launches Of Novel PAMORAs
    • 4.2.3 High Prevalence Of Chronic Non-Cancer & Cancer Pain
    • 4.2.4 Digital-Therapeutic Co-Prescription Boosting Adherence
    • 4.2.5 Pipeline Combo Opioid-PAMORA Formulations
    • 4.2.6 Hospital Opioid-Stewardship Mandates For Bowel Regimens
  • 4.3 Market Restraints
    • 4.3.1 Next-Generation Non-Opioid Analgesics
    • 4.3.2 Patient Reluctance Due To Adverse-Event Awareness
    • 4.3.3 European Reimbursement Claw-Backs On PAMORA Pricing
    • 4.3.4 Medical-Cannabis Substitution Lowering Opioid Doses
  • 4.4 Supply-Chain Analysis
  • 4.5 Regulatory Landscape
  • 4.6 Technological Outlook
  • 4.7 Porter's Five Forces Analysis
    • 4.7.1 Threat of New Entrants
    • 4.7.2 Bargaining Power of Buyers
    • 4.7.3 Bargaining Power of Suppliers
    • 4.7.4 Threat of Substitutes
    • 4.7.5 Competitive Rivalry

5. Market Size & Growth Forecasts (Value)

  • 5.1 By Drug Class
    • 5.1.1 PAMORAs
    • 5.1.2 Chloride-Channel-2 Activators
    • 5.1.3 Guanylate Cyclase-C Agonists
    • 5.1.4 Others
  • 5.2 By Prescription Type
    • 5.2.1 Prescription
    • 5.2.2 Over-the-Counter (OTC)
  • 5.3 By Route of Administration
    • 5.3.1 Oral
    • 5.3.2 Parenteral
  • 5.4 By Patient Group
    • 5.4.1 Cancer-Pain Patients
    • 5.4.2 Non-Cancer Chronic-Pain Patients
  • 5.5 By Distribution Channel
    • 5.5.1 Hospital Pharmacies
    • 5.5.2 Retail Pharmacies
    • 5.5.3 Online Pharmacies
  • 5.6 Geography
    • 5.6.1 North America
    • 5.6.1.1 United States
    • 5.6.1.2 Canada
    • 5.6.1.3 Mexico
    • 5.6.2 Europe
    • 5.6.2.1 Germany
    • 5.6.2.2 United Kingdom
    • 5.6.2.3 France
    • 5.6.2.4 Italy
    • 5.6.2.5 Spain
    • 5.6.2.6 Rest of Europe
    • 5.6.3 Asia Pacific
    • 5.6.3.1 China
    • 5.6.3.2 Japan
    • 5.6.3.3 India
    • 5.6.3.4 South Korea
    • 5.6.3.5 Australia
    • 5.6.3.6 Rest of Asia Pacific
    • 5.6.4 Middle East & Africa
    • 5.6.4.1 GCC
    • 5.6.4.2 South Africa
    • 5.6.4.3 Rest of Middle East & Africa
    • 5.6.5 South America
    • 5.6.5.1 Brazil
    • 5.6.5.2 Argentina
    • 5.6.5.3 Rest of South America

6. Competitive Landscape

  • 6.1 Market Concentration
  • 6.2 Market Share Analysis
  • 6.3 Company Profiles (includes Global-level Overview, Market-level Overview, Core Segments, Financials as available, Strategic Information, Market Rank/Share, Products & Services, Recent Developments)
    • 6.3.1 AstraZeneca plc
    • 6.3.2 Mallinckrodt Pharmaceuticals
    • 6.3.3 Bausch Health
    • 6.3.4 Merck & Co Inc
    • 6.3.5 Shionogi & Co Ltd
    • 6.3.6 GSK plc / Theravance Biopharma
    • 6.3.7 Takeda Pharmaceutical Co Ltd
    • 6.3.8 Novartis AG (Sandoz)
    • 6.3.9 RedHill Biopharma
    • 6.3.10 BioDelivery Sciences Intl (Collegium)
    • 6.3.11 Nektar Therapeutics
    • 6.3.12 Daiichi Sankyo Co Ltd
    • 6.3.13 Kyowa Kirin Co Ltd
    • 6.3.14 Purdue Pharma L.P.
    • 6.3.15 Ferring Pharmaceuticals
    • 6.3.16 Lupin Ltd
    • 6.3.17 Hikma Pharmaceuticals plc
    • 6.3.18 Viatris Inc
    • 6.3.19 Sun Pharma
    • 6.3.20 AbbVie Inc

7. Market Opportunities & Future Outlook

  • 7.1 White-space & Unmet-Need Assessment
**Competitive Landscape covers- Business Overview, Financials, Products and Strategies, and Recent Developments

Research Methodology Framework and Report Scope

Market Definitions and Key Coverage

Our study defines the opioid-induced constipation (OIC) market as every branded or generic prescription and over-the-counter drug that is expressly labeled to ease constipation caused by short- or long-term opioid therapy. Covered classes include peripherally acting µ-opioid receptor antagonists (PAMORAs), chloride-channel activators, guanylate cyclase-C agonists, plus stimulant or osmotic laxatives carrying an OIC claim. Values reflect manufacturer revenue across seventeen countries that issue more than ninety-five percent of global opioid prescriptions.

Scope exclusion: Devices, fiber supplements, and general-use laxatives without an OIC claim are left outside our work.

Segmentation Overview

  • By Drug Class
    • PAMORAs
    • Chloride-Channel-2 Activators
    • Guanylate Cyclase-C Agonists
    • Others
  • By Prescription Type
    • Prescription
    • Over-the-Counter (OTC)
  • By Route of Administration
    • Oral
    • Parenteral
  • By Patient Group
    • Cancer-Pain Patients
    • Non-Cancer Chronic-Pain Patients
  • By Distribution Channel
    • Hospital Pharmacies
    • Retail Pharmacies
    • Online Pharmacies
  • Geography
    • North America
      • United States
      • Canada
      • Mexico
    • Europe
      • Germany
      • United Kingdom
      • France
      • Italy
      • Spain
      • Rest of Europe
    • Asia Pacific
      • China
      • Japan
      • India
      • South Korea
      • Australia
      • Rest of Asia Pacific
    • Middle East & Africa
      • GCC
      • South Africa
      • Rest of Middle East & Africa
    • South America
      • Brazil
      • Argentina
      • Rest of South America

Detailed Research Methodology and Data Validation

Primary Research

Mordor analysts spoke with gastroenterologists, pain doctors, hospital pharmacists, and payor managers across North America, Europe, and Asia-Pacific. Their views on therapy mix, net prices, and adherence refined assumptions and validated desk findings.

Desk Research

We pulled opioid-prescription totals from the CDC, NHS Digital, and Japan's MHLW, then matched them with UN Comtrade shipment codes. Launch timelines and label updates were mapped from US FDA, EMA, and PMDA notices. Price curves and channel splits came from IQVIA MIDAS snapshots, while D&B Hoovers and Dow Jones Factiva helped us isolate pure OIC revenue inside diversified firms. This list is illustrative; many other public and paid sources informed the evidence base.

Market-Sizing & Forecasting

A top-down prevalence-to-treated-pool model converts national opioid-user counts into an addressable OIC base, multiplies therapy days by weighted average selling price, and is cross-checked through supplier roll-ups and channel calls. Core drivers, opioid-prescription growth, PAMORA uptake, therapy duration, patent expiries, and reimbursement shifts feed a multivariate regression that builds the 2025-2030 view, while selective bottom-up tests keep totals realistic.

Data Validation & Update Cycle

Outputs face peer review, anomaly flags, and variance checks versus quarterly sales prints. Full refreshes come each year, with interim updates after major approvals or policy shocks.

Why Mordor's Opioid Induced Constipation Market Baseline Commands Reliability

Published figures diverge because firms pick narrower drug baskets, apply list rather than net prices, or freeze models for years.

We blend broader scope with discounted prices and annual reviews, giving buyers a dependable starting point.

Benchmark comparison

Market Size Anonymized source Primary gap driver
USD 3.06 B (2025) Mordor Intelligence -
USD 2.10 B (2023) Global Consultancy A Prescription drugs only, 27-country scope
USD 2.87 B (2024) Industry Association B Uses wholesale list prices, no channel discounts
USD 1.11 B (2021) Trade Journal C Excludes OTC products; outdated base year

Together, these contrasts show how Mordor's transparent scope, realistic price work, and disciplined refresh cadence give decision-makers a balanced baseline they can trace and reproduce with confidence.

Key Questions Answered in the Report

What is the current size of the opioid induced constipation market?

The market stands at USD 3.06 billion in 2025 and is projected to grow to USD 3.99 billion by 2030 at a 6.7% CAGR.

Which drug class leads the opioid induced constipation market?

PAMORAs dominate with 73.3% revenue share in 2024 due to their ability to relieve constipation without reducing analgesic efficacy.

Why is Asia Pacific the fastest-growing region?

Regulatory harmonization, expanding pain-care infrastructure, and rapid adoption of naldemedine in Japan are driving a 7.5% regional CAGR through 2030.

How are digital therapeutics influencing market growth?

Reimbursed apps that monitor bowel function improve adherence and provide real-time data, increasing treatment effectiveness and creating new revenue streams.

What impact will non-opioid analgesics have on the market?

New agents like suzetrigine remove constipation risk entirely, potentially reducing future demand, yet cost and limited chronic-pain data suggest only gradual uptake.

Which distribution channel is growing fastest?

Online pharmacies are forecast to register a 10.6% CAGR as telehealth stabilizes and patients seek convenient refill options.

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